USPTO Examiner CHIN CHRISTOPHER L - Art Unit 1677

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18579324ARTICLES AND METHODS FOR PERFORMING ASSAYSJanuary 2024December 2024Allow1111YesNo
18455397DIAGNOSTIC ASSAY METHODS USING ASSAY DEVICE HAVING MICROREACTORAugust 2023May 2024Allow910YesNo
18333596DEVICE AND METHOD FOR PATHOGEN DETECTIONJune 2023April 2025Abandon2230YesNo
17786245SELECTIVE WHITE BLOOD CELL LYSIS FOR IMMUNOASSAY SYSTEMSJune 2022April 2024Allow2220NoNo
17803387OPTICAL BIOMODULE FOR DETECTION OF DISEASES AT AN EARLY ONSETJune 2022December 2023Allow1811YesNo
17777268TIME-RESOLVED FLUORESCENCE KIT FOR SYNCHRONOUSLY DETECTING 4,15-DIACETOXYSCIRPENOL, DEOXYNIVALENOL, AND T-2 TOXINMay 2022June 2023Allow1310NoNo
17744555DETECTION DEVICE, SAMPLE SOLUTION LOADING DEVICE, TEST STRIP LOADING BOARD AND TEST STRIPMay 2022March 2023Allow1011NoNo
17590044MICROWELL ASSAY PLATE AND RELATED METHODSFebruary 2022January 2025Allow3611NoNo
17478595HOMOGENOUS ASSAY (II)September 2021September 2022Allow1210YesNo
17440368AUTOMATIC SYSTEM AND METHOD FOR TISSUE SECTIONING, STAINING, AND SCANNINGSeptember 2021March 2025Allow4202NoNo
17335605METHOD OF ISOLATING AND DETECTING EXOSOMAL BIOMARKERS OF GLIOBLASTOMA MALIGNANCYJune 2021October 2024Allow4120NoNo
17317212SYSTEM FOR EVALUATING URINE FOR THE PRESENCE OR ABSENCE OF PREGNANEDIOL GLUCURONIDE AND OTHER HORMONES AND ANALYTESMay 2021September 2022Allow1712YesNo
17217518METHODS FOR CHARACTERIZING LOW-ABUNDANCE HOST CELL PROTEINSMarch 2021January 2024Allow3420YesNo
17268799ENHANCED, RAPID, HOMOGENEOUS, CELL STAINING AND ASSAYFebruary 2021September 2023Allow3121YesNo
17165392HOLLOW POLYMER FIBER OPTIC SYSTEM FOR SINGLE ANALYTE AND MULTIPLEXED ANALYTE DETECTIONFebruary 2021June 2025Allow5200NoNo
17264281Chelator-Coated Field Effect Transistor and Devices and Methods Using SameJanuary 2021July 2024Allow4111NoNo
17152513POINT-OF-COLLECTION GRAPHENE-BASED TOXICOLOGY SENSORJanuary 2021March 2025Allow5021YesNo
17094212SENSING METHOD OF BIOPARTICLE POSITIONING AND BIOPARTICLE POSITIONING SENSING SYSTEMNovember 2020October 2024Allow4711NoNo
17069591IMMUNOASSAY WITH ENHANCED SENSITIVITYOctober 2020May 2025Allow5500NoNo
17044059QUANTUM DOT BEAD HAVING MULTIFUNCTIONAL LIGAND, AND TARGET ANTIGEN DETECTION METHOD AND BIO-DIAGNOSTIC APPARATUS USING SAMESeptember 2020January 2025Abandon5112NoNo
17037162METHOD AND SYSTEM FOR DETECTING ANALYTE OF INTEREST USING MAGNETIC FIELD SENSOR AND MAGNETIC PARTICLESSeptember 2020September 2023Allow3611NoNo
17022942LC-MS METHODS FOR ANTIBODY ISOTYPING AND QUANTIFICATIONSeptember 2020January 2025Allow5221NoNo
16999598SYSTEM FOR SINGLE-MOLECULE ISOLATION FOR CELL POPULATIONS AND SINGLE CELLS, AND METHODS AND USES THEREOFAugust 2020February 2024Allow4111YesNo
16991111Dual channel immuno-quantitative test strip of Zearalenone-DeoxynivalenolAugust 2020February 2024Abandon4220YesNo
16990056EXTRACTION AND DETECTION OF PATHOGENS USING CARBOHYDRATE-FUNCTIONALIZED BIOSENSORSAugust 2020February 2025Allow5400NoNo
16930664DEVICES, KITS, AND METHODS FOR LABEL-FREE FOCUSING AND/OR SEPARATION OF SUB-MICRON PARTICLESJuly 2020July 2023Allow3621YesNo
16910148METHOD OF DETECTING OR QUANTIFYING DETECTION TARGET IN SPECIMEN, COMPOSITE PARTICLE, AND REAGENTJune 2020September 2023Allow3911NoNo
16909309DETECTION OF CLEAVAGE ACTIVITY OF AN ENZYMEJune 2020March 2025Allow5701YesNo
16762662MICROCHIP AND DEVICE FOR QUANTITATIVE ANALYSIS OF ANTIGEN, AND METHOD FOR QUANTITATIVE ANALYSIS OF ANTIGEN USING SAMEMay 2020April 2025Allow5931NoNo
16758163IMMUNODETECTION CHIP, IMMUNODETECTION DEVICE AND USING METHODApril 2020January 2024Allow4531YesNo
16850541Methods for Detecting Antibodies by Surface Plasmon ResonanceApril 2020May 2024Allow4921YesNo
16849637SENSORS, SYSTEMS AND METHODS FOR DETECTING ANALYTES USING SAMEApril 2020April 2023Allow3622YesNo
16844463LATERAL FLOW IMMUNOASSAY FOR MEASURING FUNCTIONAL C1-ESTERASE INHIBITOR (C1-INH) IN PLASMA SAMPLESApril 2020July 2024Allow5211YesNo
16845035Multiplexed Lateral Flow Assay DeviceApril 2020October 2023Allow4320YesNo
16839158SENSOR FOR LIQUID BIOPSY AND ITS METHOD OF MAKING, AND METHOD OF NON-INVASIVE LIQUID BIOPSYApril 2020July 2024Allow5141YesNo
16831678Target Detection with NanoporeMarch 2020June 2025Allow6011NoNo
16822994PLACENTAL LIPID BILAYER FOR CELL-FREE MOLECULAR INTERACTION STUDIESMarch 2020November 2024Allow5621YesNo
16634315TIME-RESOLVED FLUORESCENCE IMMUNOCHROMATOGRAPHY KIT FOR SIMULTANEOUS DETECTION OF MIXED POLLUTANT OF AFLATOXIN AND CARBARYL, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOFJanuary 2020March 2025Allow6020NoNo
16492303TIME-RESOLVED FLUORESCENCE IMMUNOCHROMATOGRAPHIC KIT FOR SIMULTANEOUS DETECTION OF MIXED CONTAMINATION OF FIVE MYCOTOXINS SUCH AS AFLATOXIN B1 AND APPLICATION THEREOFJanuary 2020November 2024Allow6020NoNo
16747021DETECTION DEVICE AND DETECTION METHODJanuary 2020June 2023Allow4120NoNo
16631703METHOD FOR QUANTITATIVELY ANALYZING TARGET MATERIAL AND DEVICE FOR QUANTITATIVELY ANALYZING TARGET MATERIAL BY USING SAMEJanuary 2020May 2024Allow5221NoNo
16602966Optical biomodule for detection of diseases at an early onsetJanuary 2020April 2023Allow3910NoNo
16730660Containers Containing Degradable CarriersDecember 2019December 2024Allow6041YesYes
16627376SYSTEM AND METHOD FOR DEPOSITING ANTISERA IN IMMUNOFIXATION ELECTROPHORESISDecember 2019January 2023Abandon3620NoNo
16626584IN SITU SERIAL DILUTION METHODDecember 2019October 2024Allow5802NoNo
16700021Devices and Methods for Detection and Quantification of Immunological Proteins, Pathogenic and Microbial Agents and CellsDecember 2019August 2024Allow5621NoNo
16700677Methods for Cancer Detection with Quantum DotsDecember 2019January 2025Allow6011NoNo
16664341RAPID MULTIPLEX DIAGNOSTIC FOR PARKINSON'S DISEASE AND ALZHEIMER'S DISEASEOctober 2019January 2023Abandon3901NoNo
16583264METHOD FOR ACTIVATING AND EXPANDING ISOLATED T CELLSSeptember 2019July 2024Allow5811NoNo
16582176EVALUATING ASSAYS WITH OPTICAL INHOMOGENEITIESSeptember 2019May 2025Allow6021NoNo
16577805APPARATUS FOR PERFORMING CONTACTLESS OPTICALLY-INDUCED DIELECTROPHORESIS FOR SEPARATION OF CIRCULATING TUMOR CELLSSeptember 2019December 2023Allow5110NoNo
16492427IMMUNOCHROMATOGRAPHIC TEST PIECE FOR EXTRACTING AND MEASURING SUGAR CHAIN ANTIGEN, WHICH IS CAPABLE OF CONTROLLING DEVELOPMENT OF SPECIMENSeptember 2019October 2023Allow4930NoNo
16492128METHOD AND APPARATUS FOR ORDERED NANOPLASMONIC SENSOR FORMATION THROUGH MICROFLUIDIC ASSEMBLYSeptember 2019June 2023Allow4621YesNo
16560401SYSTEM AND METHOD FOR DIAGNOSING SENSOR PERFORMANCE USING ANALYTE-INDEPENDENT RATIOMETRIC SIGNALSSeptember 2019January 2024Abandon5210NoNo
16544554METHOD AND APPARATUS FOR A PREGNANEDIOL URINE ASSAYAugust 2019November 2024Abandon6021NoNo
16484678QMAX ASSAYS AND APPLICATIONSAugust 2019February 2024Allow5521YesNo
16532855Method and Device for Combined Detection of Viral and Bacterial InfectionsAugust 2019August 2023Abandon4801NoNo
16483080Device and Determination System Using SameAugust 2019November 2022Allow4021YesNo
16530040APPARATUSES AND METHODS FOR DETECTING MOLECULES AND BINDING ENERGYAugust 2019December 2023Allow5220YesNo
16512532SPECTRAL SHIFTS AND MODIFICATIONS IN METAL-ENHANCED FLUORESCENCE, PHOSPHORESCENCE AND ALPHA-FLUORESCENCEJuly 2019November 2023Allow5211YesNo
16473835METHOD OF STORING LATEX PARTICLE DISPERSION LIQUIDJune 2019October 2024Allow6021YesNo
16428961Multiplexed Lateral Flow Assay DeviceMay 2019August 2022Allow3811YesNo
16464792LIQUID IMMERSION MICRO-CHANNEL MEASUREMENT DEVICE AND MEASUREMENT METHOD WHICH ARE BASED ON TRAPEZOIDAL INCIDENT STRUCTURE PRISM INCIDENT-TYPE SILICONMay 2019March 2023Allow4610NoNo
16423787METHODS AND APPARATUS FOR SIMULTANEOUSLY DETECTING A LARGE RANGE OF PROTEIN CONCENTRATIONSMay 2019January 2023Allow4311YesNo
16422178SYSTEM AND METHOD FOR DETECTION OF DUST MITE ANTIGENSMay 2019March 2023Allow4611NoNo
16420412Micro-Fluidic System Using Micro-Apertures for High Throughput Detection of CellsMay 2019June 2022Allow3710YesNo
16417599Celocoxib Binding Antibodies and Uses ThereofMay 2019March 2023Abandon4610NoNo
16401418CATALYTIC PARTICLES FOR SIGNAL ENHANCEMENT FOR LATERAL FLOW IMMUNOASSAYSMay 2019October 2024Allow6031NoNo
16389852DETECTION OF TARGETSApril 2019March 2024Allow5931NoNo
16374713METHODS FOR AFFINITY-BASED NON-ANTIBODY CAPTURE AND PURIFICATION OF EXTRACELLULAR VESICLESApril 2019December 2024Allow6041YesNo
16298322Incubation trough and incubation tray with a plurality of incubation troughsMarch 2019September 2022Allow4311NoNo
16329853STEPPED MERGED INJECTION FOR SURFACE PLASMON RESONANCE ASSAYSMarch 2019February 2025Allow6051YesNo
16315877HAEMOGLOBIN TEST KITJanuary 2019March 2023Abandon5010NoNo
16229487BIOLOGICAL MEMBRANE-BASED SENSORDecember 2018October 2022Allow4521YesNo
16308219DETECTING AN ANALYTEDecember 2018September 2022Allow4521NoNo
16307125BIOMARKER CONCENTRATION AND SIGNAL AMPLIFICATION FOR USE IN PAPER-BASED IMMUNOASSAYS AND A SINGLE PLATFORM FOR EXTRACTING, CONCENTRATING, AND AMPLIFYING DNADecember 2018July 2023Allow5521NoNo
16305731DEVICES, SYSTEMS, AND METHODS FOR THE DETECTION OF A TARGET ANALYTE USING MAGNETIC FOCUS LATERAL FLOW IMMUNOASSAY TECHNIQUESNovember 2018May 2023Allow5312YesNo
16301804IMMUNOCHROMATOGRAPHY ANALYSIS DEVICE FOR DETECTING ZIKA VIRUSNovember 2018December 2022Abandon4910YesNo
16165527LABEL-FREE DETECTION OF RENAL CANCEROctober 2018August 2022Allow4611NoNo
16121474POINT-OF-CARE APPARATUS AND METHODS FOR DETECTING CANCER USING ELECTROCHEMICAL IMPEDANCE OR CAPACITANCE SPECTROSCOPYSeptember 2018January 2023Abandon5231YesNo
16121476ELECTRIC, MAGNETIC, AND RF SENSOR BASED METHODS TO REGISTER AND INTERPRET LATERAL FLOW ASSAY MEASUREMENTSSeptember 2018June 2022Allow4612YesNo
16119255METHODS AND APPLICATIONS OF ON-CHIP DRIED OR LYOPHILIZED CHEMILUMINESCENCE SUBSTRATE REAGENTSAugust 2018September 2022Allow4811YesNo
16119989POINT-OF-CARE APPARATUS AND METHODS FOR DETECTING CANCER USING ELECTROCHEMICAL IMPEDANCE OR CAPACITANCE SPECTROSCOPYAugust 2018April 2023Allow5531YesNo
16078273METHOD FOR DETECTING AN ANALYTE USING SURFACE ENHANCED RAMAN SPECTROSCOPYAugust 2018July 2022Allow4720YesNo
16034892LABEL-FREE DETECTION OF RENAL CANCERJuly 2018August 2022Allow5021YesNo
16030331METHOD AND DEVICES FOR RAPID DIAGNOSIS OF FOOT-AND-MOUTH DISEASEJuly 2018October 2022Allow5211YesNo
16024033INTEGRATED DEVICE FOR ANALYTE TESTING, CONFIRMATION, AND DONOR IDENTITY VERIFICATIONJune 2018December 2022Allow5311NoNo
15974229Portable Diagnostic System For Ovulation Cycle MonitoringMay 2018December 2024Allow6043YesNo
15767468IMMUNOCHROMATOGRAPHIC TEST PIECEApril 2018August 2023Allow6041YesNo
15925463OPTICAL ANALYTE DETECTION SYSTEMS AND METHODS OF USEMarch 2018October 2022Abandon5540YesNo
15760328HIGH-SENSITIVITY LATERAL FLOW IMMUNOASSAY STRIP BASED ON SURFACE-ENHANCED RAMAN SCATTERING AND DETECTION METHOD USING THE SAMEMarch 2018April 2023Abandon6030YesNo
15749223WATER DISPERSIBLE ASSAYSJanuary 2018July 2022Allow5321NoNo
15804983SYSTEM AND METHOD FOR IMAGE ANALYSIS OF MEDICAL TEST RESULTSNovember 2017September 2022Allow5951NoNo
15804986SYSTEM AND METHOD FOR VARIABLE FUNCTION MOBILE APPLICATION FOR PROVIDING MEDICAL TEST RESULTSNovember 2017June 2023Allow6061NoNo
15670481SYSTEMS AND METHODS FOR ENZYMATIC A1C DETECTION AND QUANTIFICATIONAugust 2017March 2023Allow6051YesNo
15630174RAPID DIAGNOSTIC TEST DEVICE BY DRIVEN FLOW TECHNOLOGYJune 2017August 2017Allow210YesNo
15514683SEQUENCE AND CHIRAL SELECTIVITY OF DNA-DRUG INTERACTIONS REVEALED BY FORCE SPECTROSCOPYMarch 2017June 2017Allow300NoNo
15410424QUANTITIVE ANALYTE ASSAY DEVICE AND METHODJanuary 2017January 2018Abandon1210NoNo
15403553SYSTEMS AND METHODS OF FLUIDIC SAMPLE PROCESSINGJanuary 2017April 2023Allow6041YesNo
15392895MAGNETIC PARTICLE BASED BIOSENSORDecember 2016October 2017Abandon1010NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CHIN, CHRISTOPHER L.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
2
Examiner Affirmed
1
(50.0%)
Examiner Reversed
1
(50.0%)
Reversal Percentile
69.5%
Higher than average

What This Means

With a 50.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
20
Allowed After Appeal Filing
7
(35.0%)
Not Allowed After Appeal Filing
13
(65.0%)
Filing Benefit Percentile
54.4%
Higher than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 35.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

Strategic Recommendations

Appeals to PTAB show good success rates. If you have a strong case on the merits, consider fully prosecuting the appeal to a Board decision.

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner CHIN, CHRISTOPHER L - Prosecution Strategy Guide

Executive Summary

Examiner CHIN, CHRISTOPHER L works in Art Unit 1677 and has examined 560 patent applications in our dataset. With an allowance rate of 88.0%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 41 months.

Allowance Patterns

Examiner CHIN, CHRISTOPHER L's allowance rate of 88.0% places them in the 64% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by CHIN, CHRISTOPHER L receive 1.67 office actions before reaching final disposition. This places the examiner in the 47% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHIN, CHRISTOPHER L is 41 months. This places the examiner in the 6% percentile for prosecution speed. Applications take longer to reach final disposition with this examiner compared to most others.

Interview Effectiveness

Conducting an examiner interview provides a +11.5% benefit to allowance rate for applications examined by CHIN, CHRISTOPHER L. This interview benefit is in the 50% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 28.8% of applications are subsequently allowed. This success rate is in the 43% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 55.2% of cases where such amendments are filed. This entry rate is in the 77% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 66.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 50% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences show above-average effectiveness with this examiner. If you have strong arguments, a PAC request may result in favorable reconsideration.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 90.0% of appeals filed. This is in the 80% percentile among all examiners. Of these withdrawals, 72.2% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner frequently reconsiders rejections during the appeal process compared to other examiners. Per MPEP § 1207.01, all appeals must go through a mandatory appeal conference. Filing a Notice of Appeal may prompt favorable reconsideration even before you file an Appeal Brief.

Petition Practice

When applicants file petitions regarding this examiner's actions, 68.1% are granted (fully or in part). This grant rate is in the 86% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 7.7% of allowed cases (in the 94% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.4% of allowed cases (in the 48% percentile). This examiner issues Quayle actions less often than average. Allowances may come directly without a separate action for formal matters.

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • Appeal filing as negotiation tool: This examiner frequently reconsiders rejections during the appeal process. Filing a Notice of Appeal may prompt favorable reconsideration during the mandatory appeal conference.
  • Plan for extended prosecution: Applications take longer than average with this examiner. Factor this into your continuation strategy and client communications.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

Relevant MPEP Sections for Prosecution Strategy

  • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
  • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
  • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
  • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
  • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
  • MPEP § 1214.07: Reopening prosecution after appeal

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.