USPTO Examiner LIANG LEONARD S - Art Unit 2857

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18599211METHOD AND SYSTEM FOR IDENTIFYING GLACIAL LAKE OUTBURST DEBRIS FLOWMarch 2024June 2025Abandon1620NoNo
18525642INTERACTIVE DISPLAY FOR GAS FERMENTATION SYSTEMSNovember 2023June 2025Abandon1920NoNo
17895088INTELLIGENT REAL-TIME UPDATING METHOD AND SYSTEM FOR STRATIGRAPHIC FRAMEWORK WITH GEOSTEERING-WHILE-DRILLINGAugust 2022November 2024Allow2740NoNo
17770750METHOD AND MOBILE DETECTION UNIT FOR DETECTING ELEMENTS OF INFRASTRUCTURE OF AN UNDERGROUND LINE NETWORKApril 2022April 2025Abandon3510NoNo
17761640APPARATUS AND METHOD FOR CONNECTING AND MONITORING PROCESSES OF A PRODUCTION MACHINEMarch 2022July 2023Abandon1610NoNo
17761462DYNAMIC AND INTERACTIVE SPIRAL-SHAPED GEOLOGICAL TIME SCALESMarch 2022January 2025Abandon3420YesNo
17620810SYSTEM AND METHOD FOR TOOTHBRUSH MONITORING USING MAGNETO-INDUCTIVE COIL SENSORDecember 2021December 2024Allow3610NoNo
17546112OPTIONAL SENSOR CALIBRATION IN CONTINUOUS GLUCOSE MONITORINGDecember 2021December 2024Allow3640NoNo
17445956DETERMINING SHEAR SLOWNESS FROM DIPOLE SOURCE-BASED MEASUREMENTS ACQUIRED BY A LOGGING WHILE DRILLING ACOUSTIC MEASUREMENT TOOLAugust 2021March 2025Allow4350YesNo
17428197TIME-SERIES DATA PROCESSING METHODAugust 2021November 2024Abandon3920YesNo
17382766Drilling Quasi-Stationary Data Extraction And ProcessingJuly 2021January 2025Abandon4260YesNo
17419894SMART FACTORY MONITORING SYSTEMJune 2021December 2023Abandon3010NoNo
17345012Surface Profile Mapping for Evaluating III-N Device Performance and YieldJune 2021March 2024Abandon3320NoNo
17344773AUTO OUTLIER INJECTION IDENTIFICATIONJune 2021June 2025Abandon4840YesNo
17320007AUTOMATED ACTIONS BASED ON RANKED WORK EVENTSMay 2021October 2023Abandon3010NoNo
17302034TEMPERATURE-CORRECTED CONTROL DATA FOR VERIFYING OF STRUCTURAL INTEGRITY OF MATERIALSApril 2021December 2023Allow3220YesNo
17229309IMFORMATION PROCESSING DEVICE, SURVEY SYSTEM, AND MULTIFUNCTIONAL SURVEYING APPARATUSApril 2021March 2024Abandon3520NoNo
17227336CONTINUOUS AERIAL CABLE MONITORING USING DISTRIBUTED ACOUSTIC SENSING (DAS) AND OPERATIONAL MODAL ANALYSIS (OMA)April 2021October 2023Abandon3120NoNo
17202214INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHODMarch 2021September 2024Abandon4230YesNo
17196085Surveying InstrumentMarch 2021September 2024Abandon4331YesNo
17250701DYNAMIC FIELD OPERATIONS SYSTEMFebruary 2021September 2024Allow4240YesNo
17248672Measurements using an ultra-wideband ranging pairFebruary 2021January 2025Abandon4840YesNo
17154988GEODETIC INSTRUMENT WITH A STATIC BASEJanuary 2021December 2023Abandon3520NoNo
17151112SURVEY INSTRUMENT INSTALLATION DEVICEJanuary 2021October 2023Abandon3320NoNo
17140327DETERMINING COMPOSITE MATRIX-FRACTURE PROPERTIES OF NATURALLY FRACTURED RESERVOIRS IN NUMERICAL RESERVOIR SIMULATIONJanuary 2021July 2024Abandon4240YesNo
17124058APPARATUS AND METHOD FOR EXTRACTING FEATURE OF BIO-SIGNAL, AND APPARATUS FOR DETECTING BIO-INFORMATIONDecember 2020May 2025Abandon5340YesNo
17111851RATE OF PENETRATION (ROP) OPTIMIZATION ADVISORY SYSTEMDecember 2020April 2025Allow5250YesNo
17102829GROUND MARKING AERIAL TARGET FOR AERIAL SURVEY TRANSFORMABLE TO HAND-FAN SHAPENovember 2020January 2024Allow3830YesNo
17055494Method and Device Used for Filtering Positioning DataNovember 2020January 2025Abandon5040NoNo
17078338Monitoring Equipment of a Plurality of Drill RigsOctober 2020May 2025Abandon5540YesNo
17039953Eyetracking Method, Eyetracker and Computer ProgramSeptember 2020January 2025Abandon5250NoNo
17027488METHOD AND SYSTEM FOR MONITORING ANTI-MICROBIAL EFFECTIVENESS OF AN ELECTRONIC DEVICE SCREEN PROTECTOR EMBEDDED WITH ANTI-MICROBIAL ADDITIVESSeptember 2020October 2023Abandon3720NoNo
17005896SURVEY POLE WITH INDICIA FOR AUTOMATIC TRACKINGAugust 2020March 2024Abandon4320NoNo
17005848PLASMA CHEMISTRY DERIVED RELATION BETWEEN ARC AND SPARK FOR PULSE POWER DRILLINGAugust 2020November 2024Allow5040YesYes
16987176METHOD OF ANALYZING A SIGNAL AND SIGNAL ANALYSIS DEVICEAugust 2020April 2025Abandon5660YesNo
16928199PREDICTING AND REDUCING VIBRATIONS DURING DOWNHOLE DRILLING OPERATIONSJuly 2020December 2024Abandon5360YesNo
16955181NON-IMPULSIVE SOURCE ACTUATIONJune 2020November 2024Abandon5340NoNo
16891318INNOVATIVE APPROACH FOR PULSED NEUTRON AND ARRAY SPINNER MEASUREMENTS INTERPRETATIONJune 2020April 2025Abandon5850YesNo
16845797SYSTEMS AND METHODS FOR DETERMINING RELATIONSHIPS BETWEEN DEFECTSApril 2020February 2023Allow3420YesNo
16824785Surveying InstrumentMarch 2020March 2024Abandon4730NoNo
16780503GEOSTEERING METHODS AND SYSTEMS FOR IMPROVED DRILLING PERFORMANCEFebruary 2020March 2025Allow6060YesNo
16698593SYSTEMS AND METHODS FOR ADJUSTING PROCESS PARAMETERS IN A PHARMACEUTICAL PRODUCTION PROCESSNovember 2019September 2024Abandon5770YesNo
16655758DOWNHOLE TOOL DIAGNOSTICSOctober 2019December 2023Abandon5040NoNo
16247909Utilizing Vision Systems at a WellsiteJanuary 2019January 2023Abandon4811NoNo
16235981METHODS AND SYSTEMS FOR DATA COLLECTION IN AN INDUSTRIAL ENVIRONMENT WITH HAPTIC FEEDBACK AND CONTROL OF DATA STORAGE AND BANDWIDTHDecember 2018April 2025Abandon6050YesNo
16236033METHODS AND SYSTEMS FOR DATA COLLECTION IN CHEMICAL OR PHARMACEUTICAL PROCESS WITH FUTURE STATUS PREDICTION AND LOAD BALANCINGDecember 2018August 2023Abandon5540YesNo
16235999METHODS AND SYSTEMS FOR DATA COLLECTION IN DOWNSTREAM OIL AND GAS ENVIRONMENT WITH HAPTIC FEEDBACK AND CONTINUOUSLY MONITORED ALARMDecember 2018August 2023Abandon5640YesNo
16236020METHODS AND SYSTEMS FOR DATA COLLECTION IN PRODUCTION LINE WITH FUTURE STATUS PREDICTION AND LOAD BALANCINGDecember 2018January 2025Abandon6060YesNo
16236046METHODS AND SYSTEMS FOR DATA COLLECTION IN MINING ENVIRONMENT WITH HAPTIC FEEDBACK AND CONTINUOUSLY MONITORED ALARMDecember 2018August 2023Abandon5640YesNo
16151198METHODS AND SYSTEMS FOR DETECTION IN AN INDUSTRIAL INTERNET OF THINGS DATA COLLECTION ENVIRONMENT WITH EXPERT SYSTEM DETECTION AND PROCESS RESPONSE FOR OIL AND GAS PROCESSING OPERATIONSOctober 2018September 2024Abandon6050YesNo
15757949Systems and Methods for Detecting Downhole Tool Location Inside a BoreholeMarch 2018December 2024Allow6050YesNo
15710743CONTROL OF A COMPUTING SYSTEM TO PERFORM NETWORK FABRIC BENCHMARK MEASUREMENTSSeptember 2017July 2022Allow5831YesNo
15689036BATTERY SAFETY EVALUATION APPARATUS, BATTERY CONTROL APPARATUS, BATTERY SAFETY EVALUATION METHOD, NON-TRANSITORY COMPUTER READABLE MEDIUM, CONTROL CIRCUIT AND POWER STORAGE SYSTEMAugust 2017April 2023Abandon6050YesNo
15227876RECONSTRUCTION OF FREQUENCY REGISTRATION FOR QUANTITATIVE SPECTROSCOPYAugust 2016January 2024Allow6071YesNo
14889010FLOW METERINGNovember 2015February 2023Allow6030YesNo
14485193RECONFIGURABLE SENSOR MONITORING SYSTEMSeptember 2014July 2017Allow3410NoNo
14252888PRINTERApril 2014November 2015Allow1910NoNo
14207358SINGLE BEAM FMCW RADAR WIND SPEED AND DIRECTION DETERMINATIONMarch 2014October 2017Allow4320NoNo
14174304LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCLUDING SAMEFebruary 2014October 2015Allow2011YesNo
13944407STRUCTURE MONITORINGJuly 2013December 2022Allow6080NoYes
13980013REAL-TIME PAVEMENT PROFILE SENSING SYSTEM USING AIR-COUPLED SURFACE WAVEJuly 2013November 2017Allow5220NoYes
13877615ROTATING ELECTRICAL MACHINEApril 2013March 2017Allow4720NoNo
13279934INKJET PRINTING MACHINEOctober 2011June 2015Allow4430NoNo
13074087PRINTERMarch 2011November 2015Allow5650YesNo
12560195IMAGE RECORDING APPARATUS AND INKJET APPARATUS FOR DOUBLE-SIDE RECORDINGSeptember 2009March 2011Allow1810NoNo
12560180IMAGE RECORDING APPARATUS AND INKJET APPARATUS FOR DOUBLE-SIDE RECORDINGSeptember 2009March 2011Allow1810NoNo
12422991DIGITAL DEVICE INCORPORATING INKJET PRINTHEAD AND PLATENApril 2009August 2010Allow1610NoNo
12138411MOBILE PHONE WITH AN INTERNAL PRINTER HAVING A PRINT CARTRIDGE WITH A MEDIA DRIVE SHAFTJune 2008January 2010Allow2030NoNo
11542207LIQUID EJECTION APPARATUS AND IMAGE FORMING APPARATUSOctober 2006July 2010Allow4501NoNo
11508215IMAGE FORMING APPARATUS AND METHOD, AND INK SETAugust 2006November 2010Allow5111NoNo
11504721IMAGE FORMING APPARATUS AND IMAGE FORMING METHODAugust 2006May 2010Allow4501NoNo
11497421INK CONSUMPTION DETECTING METHOD, AND INK JET RECORDING APPARATUSAugust 2006March 2011Allow5541NoNo
10597157ELECTRONIC PAINT BRUSH WITH SCANNER AND DISPENSERSJuly 2006June 2010Allow4710NoNo
11389654LIQUID EJECTION APPARATUSMarch 2006June 2008Allow2600NoNo
11374079HEATING APPARATUS FOR A SOLID INKMarch 2006July 2009Allow4040NoNo
11371069IMAGE INPUT/OUTPUT APPARATUS AND METHODMarch 2006January 2010Allow4621NoNo
11366718DROPLET EJECTION APPARATUS AND DROPLET EJECTION HEADMarch 2006October 2008Allow3110NoNo
11359193OFF-RADIAL-AXIS CIRCULAR PRINTING DEVICE AND METHODSFebruary 2006March 2008Abandon2531NoNo
10962402COMPOSITE HEATING SYSTEM FOR USE IN A WEB PRINTING SYSTEMOctober 2004December 2009Allow6071NoNo
10962427CABINET FOR A WEB PRINTING SYSTEMOctober 2004June 2009Allow5661NoNo
10951605METHOD AND APPARATUS FOR FORMING WHITE INKJET IMAGES ON FABRICSeptember 2004May 2008Allow4430NoNo
10945335INK-JET RECORDING APPARATUSSeptember 2004February 2007Allow2910NoNo
10842694ARRANGEMENT AND METHOD FOR DATA FOLLOW-UP FOR WARMUP CYCLES OF INK JET PRINT HEADSMay 2004June 2008Allow4930NoYes
10803078PRINTING AND DISPLAY DEVICE INCORPORATING AT LEAST TWO PRINTHEADSMarch 2004June 2009Allow6060NoNo
10732849INK JET PRINTER AND IMAGE RECORDING METHODDecember 2003December 2006Allow3621NoNo
10720173INKJET PRINTER HEAD DRIVING APPARATUS AND CONTROL METHOD THEREOFNovember 2003November 2009Allow6070NoNo
10685842METHOD AND A SYSTEM FOR SINGLE LIGAMENT FLUID DISPENSINGOctober 2003March 2007Allow4122NoNo
10686350INK JET PRINTER, AND IMAGE PRINTING APPARATUS HAVING THE PRINTEROctober 2003April 2006Allow3011NoNo
10680088INKJET RECORDING METHODOctober 2003May 2006Allow3111NoNo
10675866TRANSFERRING PRESSURE ROLL, TRANSFERRING UNIT AND INK JET RECORDING APPARATUSSeptember 2003October 2005Allow2510NoNo
10646700SOLID SEMICONDUCTOR ELEMENT, INK TANK, INK JET RECORDING APPARATUS PROVIDED WITH INK TANK, LIQUID INFORMATION ACQUIRING METHOD AND LIQUID PHYSICAL PROPERTY CHANGE DISCRIMINATING METHODAugust 2003February 2007Allow4221NoNo
10638587METHOD AND APPARATUS FOR MAKING SIGNSAugust 2003September 2007Allow4932NoNo
10632081PRINTING DEVICE HAVING A PRINTING FLUID DETECTORJuly 2003December 2006Allow4141NoNo
10629414VOLTAGE CONTROL FOR CAPACITIVE MATJuly 2003March 2006Allow3212NoNo
10400910INKJET RECORDING HEAD AND INKJET PRINTERMarch 2003June 2005Allow2710NoNo
10401924AERODYNAMIC FAIRING STRUCTURE FOR INKJET PRINTINGMarch 2003December 2005Allow3320NoNo
10365217HEAT FIXING APPARATUS FOR SUBLIMATING AND FIXING SUBLIMATING INK TO RECORDING MEDIUMFebruary 2003March 2006Allow3750NoNo
10324847METHOD FOR INCREASING THE DIAMETER OF AN INK JET INK DOTDecember 2002November 2004Allow2320NoNo
10296284METHOD FOR DRIVING INK JET RECORDING HEAD AND INK JET RECORDERNovember 2002November 2004Allow2420NoNo
10285154MECHANISM FOR PASSING RIGID MEDIUM UNDER IMAGE-FORMING MECHANISMOctober 2002June 2004Allow2020NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LIANG, LEONARD S.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
2
Examiner Affirmed
1
(50.0%)
Examiner Reversed
1
(50.0%)
Reversal Percentile
75.0%
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 in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.

Strategic Value of Filing an Appeal

Total Appeal Filings
10
Allowed After Appeal Filing
3
(30.0%)
Not Allowed After Appeal Filing
7
(70.0%)
Filing Benefit Percentile
43.0%
Lower 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, 30.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable 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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner LIANG, LEONARD S - Prosecution Strategy Guide

Executive Summary

Examiner LIANG, LEONARD S works in Art Unit 2857 and has examined 125 patent applications in our dataset. With an allowance rate of 67.2%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 41 months.

Allowance Patterns

Examiner LIANG, LEONARD S's allowance rate of 67.2% places them in the 21% percentile among all USPTO examiners. This examiner is less likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by LIANG, LEONARD S receive 3.17 office actions before reaching final disposition. This places the examiner in the 97% percentile for office actions issued. This examiner issues more office actions than most examiners, which may indicate thorough examination or difficulty in reaching agreement with applicants.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by LIANG, LEONARD S 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 -34.0% benefit to allowance rate for applications examined by LIANG, LEONARD S. This interview benefit is in the 0% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 20.4% of applications are subsequently allowed. This success rate is in the 14% percentile among all examiners. Strategic Insight: RCEs show lower effectiveness with this examiner compared to others. Consider whether a continuation application might be more strategic, especially if you need to add new matter or significantly broaden claims.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 15.2% of cases where such amendments are filed. This entry rate is in the 10% percentile among all examiners. Strategic Recommendation: This examiner rarely enters after-final amendments compared to other examiners. You should generally plan to file an RCE or appeal rather than relying on after-final amendment entry. Per MPEP § 714.12, primary examiners have discretion in entering after-final amendments, and this examiner exercises that discretion conservatively.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 100.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 72% 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 81.8% of appeals filed. This is in the 72% percentile among all examiners. Of these withdrawals, 44.4% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.

Petition Practice

When applicants file petitions regarding this examiner's actions, 38.1% are granted (fully or in part). This grant rate is in the 35% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 16.0% of allowed cases (in the 98% 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 2.4% of allowed cases (in the 68% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).

Prosecution Strategy Recommendations

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

  • Prepare for rigorous examination: With a below-average allowance rate, ensure your application has strong written description and enablement support. Consider filing a continuation if you need to add new matter.
  • Expect multiple rounds of prosecution: This examiner issues more office actions than average. Address potential issues proactively in your initial response and consider requesting an interview early in prosecution.
  • Plan for RCE after final rejection: This examiner rarely enters after-final amendments. Budget for an RCE in your prosecution strategy if you receive a final rejection.
  • 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.