USPTO Examiner WALLENHORST MAUREEN - Art Unit 1797

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19208155FLUORESCENT INDICATORS FOR CALCIUM METAL ION DETECTIONMay 2025September 2025Allow410YesNo
19057465PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESFebruary 2025May 2025Allow310NoNo
19057496PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESFebruary 2025May 2025Allow310NoNo
18957829Multifunctional Detection Test Paper and Preparing Method ThereofNovember 2024December 2025Allow1331NoNo
18933292ENGINEERED PARTICLES AS RED BLOOD CELL MIMICS AND COMPOSITIONS CONTAINING SAME FOR HEMATOLOGYOctober 2024April 2025Allow510NoNo
18859282FLOW ANALYSIS DEVICE AND FLOW ANALYSIS METHODOctober 2024January 2025Allow300YesNo
18663402MEANS AND METHODS FOR SINGLE MOLECULE PEPTIDE SEQUENCINGMay 2024May 2025Allow1210NoNo
18639567BIOMARKER DETECTION FROM BREATH SAMPLESApril 2024July 2025Abandon1510NoNo
18627030PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESApril 2024November 2024Allow710NoNo
18627091PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESApril 2024November 2024Allow810NoNo
18616075OPTICAL READER FOR ANALYTE TESTINGMarch 2024May 2025Allow1410YesNo
18426835METHODS FOR DETECTING VITAMIN D METABOLITES BY MASS SPECTROMETRYJanuary 2024January 2025Allow1210YesNo
18418151MULTIVARIATE OPTIMIZATION OF MICROWAVE DIGESTION FOR DETERMINING OF SOME ELEMENTS IN BAOBAB (A. DIGITATA L.) FRUIT PULP BY ICP-MSJanuary 2024July 2024Allow511YesNo
18390121SENSING DEVICE FOR LIQUID STORAGE CONTAINERSDecember 2023September 2024Abandon910NoNo
18526244SYSTEMS AND METHODS FOR QUANTIFYING AN ANALYTE EXTRACTED FROM A SAMPLEDecember 2023February 2025Allow1410YesNo
18563925PREPARATION METHOD OF PAPER-BASED SENSOR FOR DETECTING AMMONIA GAS, AND USE OF PAPER-BASED SENSORNovember 2023May 2025Allow1810YesNo
18514444WATER-CONTAINING SIMULATED LUNAR SOIL PREPARATION AND WATER CONTENT MEASUREMENT SYSTEM AND METHODNovember 2023June 2024Allow710YesNo
18494030QUANTITATION OF TAMOXIFEN AND METABOLITES THEREOF BY MASS SPECTROMETRYOctober 2023January 2025Allow1510NoNo
18493207SINGLE MOLECULE PEPTIDE SEQUENCINGOctober 2023November 2025Allow2511YesNo
18370669QUANTIFYING COLOR CHANGES IN CHEMICAL TEST PADS INDUCED BY DIFFERENT CONCENTRATIONS OF ANALYTES UNDER DIFFERENT LIGHTING CONDITIONSSeptember 2023October 2024Allow1310NoNo
18466519SATURATION BINDING RATIOMETRIC ASSAYSeptember 2023May 2025Allow2020NoNo
18461767SOLID PHASE MICROEXTRACTION DEVICE, RESPOSITORY, AND MANIPULATORSeptember 2023September 2024Allow1210NoNo
18235200METHODS FOR LABELING URINE IN A SUBJECT WITH FLUOROPHORESAugust 2023February 2025Abandon1820NoNo
18365467RPLC-BASED PEPTIDE MAPPING CHROMATOGRAPHIC PERFORMANCE USING METAL CHELATORS AS MOBILE PHASE ADDITIVESAugust 2023June 2025Abandon2330NoNo
18363218METHOD, APPARATUS AND SYSTEM FOR DETECTING AND DETERMINING COMPRISED REAGENT PADS BY QUANTIFYING COLOR CHANGES INDUCED BY EXPOSURE TO A HOSTILE ENVIRONMENTAugust 2023July 2024Allow1110YesNo
18328942SYSTEMS AND METHODS FOR ELECTROCHEMICAL POINT-OF-CARE DETECTION OF HEMOGLOBINJune 2023August 2024Allow1410YesNo
18205397METHODS AND SYSTEMS FOR CELL AND BEAD PROCESSINGJune 2023June 2024Allow1210YesNo
18316402LIPOPROTEIN ANALYSIS BY DIFFERENTIAL CHARGED-PARTICLE MOBILITYMay 2023March 2024Allow1010NoNo
18308858Sensing device for liquid storage containersApril 2023September 2024Abandon1710NoNo
18137053METHODS AND KITS FOR RAPID, COLORMETRIC BERYLLIUM DETECTIONApril 2023March 2026Allow3410NoNo
18298681THERMOPLASTIC FILMS AND BAGS WITH COLOR CHANGING INDICATORS AND METHODS OF MAKING THE SAMEApril 2023July 2024Abandon1510NoNo
18030849PARTITIONING SYSTEMS AND METHODS FOR DETERMINING MULTIPLE TYPES OF CANCERSApril 2023July 2023Allow400NoNo
18129140FRESHNESS SENSOR DEVICES AND RELATED METHODSMarch 2023January 2025Allow2140YesNo
18184533SENSING DEVICE FOR LIQUID STORAGE CONTAINERSMarch 2023September 2025Abandon3010NoNo
18176797SPRAY-DRIED HUMAN PLASMAMarch 2023September 2024Allow1911YesNo
18114754AUTOMATED MICROSCOPIC CELL ANALYSISFebruary 2023December 2024Allow2220YesNo
18175150METHOD FOR EVALUATING ENVIRONMENTAL EROSION OF THAUMASITE IN TUNNEL CONCRETEFebruary 2023June 2023Allow300YesNo
18107947METHODS FOR DETECTING VITAMIN D METABOLITES BY MASS SPECTROMETRYFebruary 2023October 2023Allow910YesNo
18164163SURFACE-ENHANCED RAMAN SPECTROSCOPIC METHOD OF DETECTING AN ANTI-CANCER DRUG IN A SOLUTIONFebruary 2023August 2025Allow3100NoNo
18093942FILTRATION SAMPLING DEVICESJanuary 2023November 2023Allow1010NoNo
18149438SIDEROPHORE-BASED BIOSENSORS FOR IRON DETECTIONJanuary 2023March 2026Allow3810YesNo
18070143DETECTION OF VITAMINS A AND E BY TANDEM MASS SPECTROMETRYNovember 2022August 2024Allow2030NoNo
17927997SUPER-RESOLUTION MORPHOLOGY-CORRELATED DETECTION OF LABILE ZINCNovember 2022December 2025Allow3710NoNo
17987486METHODS FOR CANNABINOID QUANTIFICATIONNovember 2022January 2024Abandon1420NoNo
17979972SYSTEMS AND METHODS FOR QUANTIFYING AN ANALYTE EXTRACTED FROM A SAMPLENovember 2022September 2023Allow1010YesNo
17973521METHOD FOR CHARACTERIZING MELTING TRANSITION AND CRYSTALLIZATION IN A SEMICRYSTALLINE POLYMEROctober 2022March 2026Allow4010NoNo
17920659METHODS FOR COLLECTING ELECTRON DIFFRACTION PATTERNSOctober 2022March 2026Allow4110YesNo
17969834METABOLIC BIOMARKER SET FOR ASSESSING OVARIAN CANCEROctober 2022April 2025Abandon3011NoNo
17963936GREEN CONCENTRATED REAGENT FOR HEMOTOLOGY SYSTEMSOctober 2022August 2023Allow1010YesNo
17995930WHOLE BLOOD CONTROL SAMPLE SYSTEMS AND METHOD OF PREPARING AND USING THE SAMEOctober 2022October 2025Allow3610YesNo
17960133ATMOSPHERIC AEROSOL INORGANIC AND ORGANIC NITROGEN QUANTIFICATION METHOD AND SYSTEMOctober 2022February 2026Allow4110YesNo
17906911METHOD AND DEVICE FOR THE RAPID QUANTIFICATION OF AFLATOXIN M1 (AFM1) IN MILKSeptember 2022February 2026Allow4120YesNo
17931552METHOD OF ESTIMATING CHEMICAL OXYGEN DEMAND OF WATERSeptember 2022September 2023Allow1210NoNo
17910583TOTAL ORGANIC CARBON MEASUREMENT DEVICE AND TOTAL ORGANIC CARBON MEASUREMENT METHODSeptember 2022March 2026Abandon4210NoNo
17941364SYSTEMS AND METHODS FOR DETECTING A BRAIN CONDITIONSeptember 2022February 2024Allow1720YesNo
17905697BLOOD COAGULATION TIME MEASUREMENT METHODSeptember 2022November 2025Allow3910NoNo
17903434LIQUID CRYSTAL EMULSIONS STABILIZED BY NANOPARTICLESSeptember 2022February 2026Allow4110NoNo
17902696METHOD AND DEVICE FOR DETECTING UREASeptember 2022January 2026Allow4011NoNo
17893950QUANTITATION OF TAMOXIFEN AND METABOLITES THEREOF BY MASS SPECTROMETRYAugust 2022July 2023Allow1110NoNo
17817908MEANS AND METHODS FOR SINGLE MOLECULE PEPTIDE SEQUENCINGAugust 2022February 2024Allow1810NoNo
17795532METHOD FOR DETECTING DTPA CONTENT IN ADC BY LC-MS/MSJuly 2022September 2025Allow3710NoNo
17795012STABLE REFERENCE MATERIALS FOR AUTOMATED HEMATOLOGY TESTING PLATFORMSJuly 2022January 2026Allow4220YesNo
17794840METHOD FOR SENSING PLANT HORMONE, AND METHOD FOR EARLY DETECTION OF DISEASE INFECTION IN PLANT USING SAMEJuly 2022August 2025Allow3710NoNo
17865877BIOLOGICAL MUCOUS MEMBRANE MODEL AND METHOD OF EVALUATING RETENTION OF MUCOUS MEMBRANE PROTECTIVE AGENTJuly 2022October 2025Allow3910YesNo
17863349PROTEIN N-TERMINAL DE NOVO SEQUENCING BY POSITION-SELECTIVE DIMETHYLATIONJuly 2022January 2026Abandon4310NoNo
17811284SINGLE MOLECULE PEPTIDE SEQUENCINGJuly 2022March 2025Allow3210YesNo
17791162DETERMINATION OF A GEMSTONE'S COMPOSITIONJuly 2022November 2025Allow4010YesNo
17856052RATIOMETRIC FLUORESCENT PROBE FOR DETECTING AMINOPEPTIDASE N, AND PREPARATION METHOD AND USE THEREOFJuly 2022August 2025Allow3811NoNo
17808746METHODS FOR LABELING URINE IN A SUBJECT WITH FLUOROPHORESJune 2022December 2023Abandon1810NoNo
17848523SYSTEM AND METHOD FOR A BIOMIMETIC FLUID PROCESSINGJune 2022August 2023Allow1310YesNo
17847385ANTIGEN TESTINGJune 2022November 2025Abandon4110NoNo
17787125COMPOSITIONS AND METHODS FOR CALIBRATION AND QUALITY CONTROLJune 2022October 2025Allow4011YesNo
17786146TREATMENT OF, AND DIFFERENTIAL DIAGNOSIS BETWEEN, ACTH-DEPENDENT CUSHING'S SYNDROME AND ACTH-INDEPENDENT CUSHING'S SYNDROMEJune 2022July 2025Allow3710YesNo
17839119COAGULATION TEST DEVICE, SYSTEM, AND METHOD OF USEJune 2022February 2024Allow2020NoNo
17806375Sensing device for liquid storage containersJune 2022August 2025Abandon3910NoNo
17806468METHODS OF MULTIPLEXED DATA-INDEPENDENT ACQUISITION FOR PROTEOMICSJune 2022February 2026Abandon4410NoNo
17783925DEVICE FOR MONITORING AN OXIDATIVE STRESS AND METHODS THEREOFJune 2022November 2025Abandon4110NoNo
17827683Color-Based Breast Milk Analyses Using Test StripsMay 2022February 2026Allow4420YesNo
17751741Creatinine Assay Kit with Desirable Stability and Capable of Rapidly Eliminating Drug InterferenceMay 2022May 2024Abandon2320NoNo
17750475ULTRAFAST COLORIMETRIC HUMIDITY SENSOR AND METHOD OF PREPARING THE SAMEMay 2022July 2023Allow1410NoNo
17777417TOTAL ORGANIC CARBON MEASUREMENT METHOD AND TOTAL ORGANIC CARBON MEASUREMENT DEVICEMay 2022August 2025Allow3910YesNo
17739579Fluorescent Method to Quantify Copper or Platinum Based on CatalysisMay 2022June 2023Allow1310NoNo
17775466Characterization of particles in solutionMay 2022January 2026Allow4520YesNo
17775040Detection and Treatment of Conditions Related to Luteinizing Hormone/Follicle-Stimulating Hormone (LH/FSH) LevelsMay 2022August 2025Allow4010YesNo
17727878INTEGRATED DEVICE FOR FAECES SAMPLING AND OCCULT BLOOD DETECTIONApril 2022August 2023Allow1510NoNo
17770146COMPOSITIONS AND METHODS FOR DETECTION OF OXIDIZABLE ANALYTESApril 2022January 2026Allow4511YesNo
17769409ON-DEMAND ELECTROCHEMICAL REACTIONS IN NANO-ELECTROSPRAY IONIZATION MASS SPECTROMETRY FOR BIOMOLECULAR ANALYSISApril 2022June 2025Allow3810NoNo
17768693DETECTION METHOD AND DETECTION SYSTEM FOR MASTITIS IN DOMESTIC ANIMALApril 2022October 2025Abandon4201NoNo
17717994ENHANCED CHEMICAL AND BIOLOGICAL DETECTIONS WITH SIZE-SHRINKABLE HYDROGELSApril 2022October 2025Abandon4210NoNo
17716163PROTHROMBIN TIME SENSORApril 2022November 2025Allow4421YesNo
176584423D-PRINTED MICROFLUIDIC DEVICES FOR SOLID-PHASE EXTRACTION AND FLUORESCENT LABELING OF PEPTIDES AND PROTEINSApril 2022September 2025Allow4120YesNo
17766192METHOD AND DEVICE FOR DETERMINING THE STATE OF CELLS IN REACTORSApril 2022October 2025Abandon4210NoNo
17698144ANALYSIS METHOD, ANALYSIS DEVICE, ANALYSIS SYSTEM, AND ANALYSIS PROGRAM FOR ANALYZING A BLEEDING TENDENCY OF A SUBJECTMarch 2022July 2025Allow4010NoNo
17695714METHOD AND COMPUTER PROGRAM FOR PREDICTING BILIRUBIN LEVELS IN NEONATESMarch 2022January 2023Allow1020NoNo
17694508METHOD FOR ENHANCING THE RECOVERY FACTOR OF HEAVY OIL BY IN-SITU OIL-WATER EMULSION WITH HIGH PHASE INVERSION POINTMarch 2022August 2022Allow510YesNo
17641689METHOD AND KIT FOR QUANTIFICATION OF SMALL, DENSE LDL CHOLESTEROLMarch 2022October 2025Allow4410YesNo
17753517TAUTOMERIC SENSING USING A COVALENT ORGANIC FRAMEWORKMarch 2022April 2025Allow3710YesNo
17684777Methods for Identifying Haemoglobin S or C in a Biological Sample and Kits ThereofMarch 2022December 2025Allow4621YesNo
17683325OPTICAL READER FOR ANALYTE TESTINGFebruary 2022November 2023Allow2010NoNo
17679054TECHNIQUES FOR DETECTION OF MOLECULES IN A SAMPLE USING FRACTIONIZATION AND SELECTIVE CAPTUREFebruary 2022July 2025Allow4110NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner WALLENHORST, MAUREEN.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
12
Examiner Affirmed
11
(91.7%)
Examiner Reversed
1
(8.3%)
Reversal Percentile
22.5%
Lower than average

What This Means

With a 8.3% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is in the bottom 25% across the USPTO, indicating that appeals face significant challenges here.

Strategic Value of Filing an Appeal

Total Appeal Filings
28
Allowed After Appeal Filing
5
(17.9%)
Not Allowed After Appeal Filing
23
(82.1%)
Filing Benefit Percentile
21.7%
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, 17.9% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

Strategic Recommendations

Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner WALLENHORST, MAUREEN - Prosecution Strategy Guide

Executive Summary

Examiner WALLENHORST, MAUREEN works in Art Unit 1797 and has examined 1,045 patent applications in our dataset. With an allowance rate of 79.7%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 26 months.

Allowance Patterns

Examiner WALLENHORST, MAUREEN's allowance rate of 79.7% places them in the 49% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by WALLENHORST, MAUREEN receive 1.50 office actions before reaching final disposition. This places the examiner in the 26% 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 WALLENHORST, MAUREEN is 26 months. This places the examiner in the 75% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +8.8% benefit to allowance rate for applications examined by WALLENHORST, MAUREEN. This interview benefit is in the 40% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 33.3% of applications are subsequently allowed. This success rate is in the 71% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 71.7% of cases where such amendments are filed. This entry rate is in the 93% 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 53% 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 52.0% of appeals filed. This is in the 22% percentile among all examiners. Of these withdrawals, 69.2% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 59.6% are granted (fully or in part). This grant rate is in the 63% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 11.4% 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 0.2% of allowed cases (in the 52% 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:

  • 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.
  • 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.