USPTO Art Unit 1797 Prosecution Statistics

Art Unit Information

Art Unit: 1797
Group: 1790
Tech Center: 1700
Total Cases: 28,728
Last Active: September 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19318272DEVICES AND SYSTEMS FOR ISOLATING PARTICLES IN SOLUTION BY PARTICLE PERMITTIVITYSeptember 2025December 2025Allow400YesNo
19275981ORGANIC PLANT MATERIAL MICROBIAL TEST KIT DEVICES AND PROCESSING METHODJuly 2025February 2026Allow700NoNo
19245282APPARATUS AND METHOD FOR MEASURING VOLATILE ORGANIC COMPOUNDS IN A SPECIMEN TO DETECT THE PRESENCE OF DISEASESJune 2025September 2025Allow300NoNo
19240279System and Method for Coagulation and Platelet Function Related Data Collection and AnalysisJune 2025January 2026Allow711NoNo
19217351IMAGING SYSTEM HARDWAREMay 2025November 2025Allow610YesNo
19208155FLUORESCENT INDICATORS FOR CALCIUM METAL ION DETECTIONMay 2025September 2025Allow410YesNo
19196566IDENTIFICATION OF METABOLITES FOR DIAGNOSIS AND TREATMENT FOR SLEEP APNEAMay 2025June 2025Allow200NoNo
19192678CONCRETE TEST DEVICE AND METHOD BASED ON LOAD-CORROSION COUPLING ACTIONApril 2025June 2025Allow200NoNo
19190844QUARTZ CRYSTAL MICROBALANCE AND DETECTION METHOD AND APPARATUS BASED ON QUARTZ CRYSTAL MICROBALANCEApril 2025July 2025Allow200NoNo
19173571Biomarker Detection Using Layered Receptor and Electrode ConfigurationApril 2025December 2025Allow810NoNo
19063118SYSTEMS AND METHODS FOR GENERATING DROPLETS AND PERFORMING DIGITAL ANALYSESFebruary 2025August 2025Allow610YesNo
19057465PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESFebruary 2025May 2025Allow310NoNo
19057496PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESFebruary 2025May 2025Allow310NoNo
19055666ORGANIC PLANT MATERIAL MICROBIAL TEST KIT DEVICES AND PROCESSING METHODFebruary 2025March 2025Allow100NoNo
19034240SOIL SAMPLE DIDESTION DEVICEJanuary 2025April 2025Allow300NoNo
19030466PARTICLE-DROP STRUCTURES AND METHODS FOR MAKING AND USING THE SAMEJanuary 2025May 2025Allow410YesNo
19030825PARTICLE-DROP STRUCTURES AND METHODS FOR MAKING AND USING THE SAMEJanuary 2025April 2025Allow200YesNo
19026954SYNTHETIC HUMAN CELL MIMIC PARTICLE FOR CYTOMETRIC OR COULTER DEVICEJanuary 2025April 2025Allow300NoNo
19023328MULTI-PROBE MULTI-FREQUENCY NUCLEAR MAGNETIC RESONANCE ROCK SOIL IN-SITU MONITORING SYSTEMJanuary 2025April 2025Allow300NoNo
19014241WATER QUALITY MEASUREMENT METHOD, DEVICE, EQUIPMENT, AND STORAGE MEDIUMJanuary 2025March 2026Abandon1430NoNo
19013863METHODS FOR DETECTING AAVJanuary 2025March 2025Allow300NoNo
19012222METHOD FOR IDENTIFICATION OF CHARACTERISTIC COMPONENTS IN KAI-XIN-SAN BY THIN-LAYER CHROMATOGRAPHY (TLC)January 2025February 2025Allow100NoNo
18957829Multifunctional Detection Test Paper and Preparing Method ThereofNovember 2024December 2025Allow1331NoNo
18957846URINE TEST DEVICE FOR TOILET AND ITS CONTROL METHODNovember 2024September 2025Abandon910NoNo
18953822CLOSED LOOP CONTROL OF MICROFLUIDIC SYSTEMSNovember 2024March 2025Allow310NoNo
18948248SYSTEMS AND METHODS FOR GENERATING DROPLETS AND PERFORMING DIGITAL ANALYSESNovember 2024December 2024Allow100YesNo
18942721METHOD FOR DETERMINING DYNAMIC ADSORPTION RETENTION OF POLYMER CAPSULESNovember 2024February 2025Allow310NoNo
18933292ENGINEERED PARTICLES AS RED BLOOD CELL MIMICS AND COMPOSITIONS CONTAINING SAME FOR HEMATOLOGYOctober 2024April 2025Allow510NoNo
18859282FLOW ANALYSIS DEVICE AND FLOW ANALYSIS METHODOctober 2024January 2025Allow300YesNo
18916814Method of Fitting the Standard Curve to Analyze the Substrate Concentration by Enzyme CatalysisOctober 2024October 2025Abandon1220YesNo
18916443DECODING APPROACHES FOR PROTEIN IDENTIFICATIONOctober 2024January 2026Allow1530NoNo
18901981PARTICLE-DROP STRUCTURES AND METHODS FOR MAKING AND USING THE SAMESeptember 2024January 2025Allow410YesNo
18894924HYDROGEL PARTICLES AS FEEDER CELLS AND AS SYNTHETIC ANTIGEN PRESENTING CELLSSeptember 2024April 2025Allow720YesNo
18888132SIMULTANEOUS DISEASE DETECTION SYSTEM METHOD AND DEVICESSeptember 2024August 2025Allow1110NoNo
18885977APPARATUS AND METHOD FOR LEACHING TOXIC SUBSTANCES FROM INORGANIC BINDER-STABILIZED SOLID WASTE MATERIALSSeptember 2024February 2025Allow510NoNo
18841398METHOD FOR SYNCHRONOUS AND FAST DETERMINATION OF TOTAL ARSENIC AND CONTENTS OF ARSENIC METABOLITES IN URINEAugust 2024August 2025Abandon1210NoNo
18797214SYSTEMS AND METHODS FOR FLARE CONTROLAugust 2024August 2025Allow1220NoNo
18835549Collecting Device for a Reaction Vessel Unit and Reaction Vessel UnitAugust 2024January 2026Allow1820YesNo
18782225METHOD AND KIT FOR DETECTING DIESEL EXHAUST FLUID IN FUELJuly 2024October 2025Allow1510NoNo
18775522Compositions for Wetness IndicationJuly 2024September 2025Allow1430YesNo
18768028LUMINESCENT PROBE AND ITS PREPARATION METHOD AND APPLICATIONJuly 2024February 2025Allow811NoNo
18765527METHOD AND SYSTEM FOR STUDYING BIOLOGICAL CELLSJuly 2024May 2025Allow1100NoNo
18764204BURNING DEVICE FOR COMBUSTION CALORIMETRY AND COMBUSTION ANALYSIS OF POLYMERIC MATERIALSJuly 2024November 2024Allow500YesNo
18760381QUANTITATION OF INSULIN-LIKE GROWTH FACTOR-I AND INSULIN-LIKE GROWTH FACTOR-II WITH HIGH-RESOLUTION MASS SPECTROMETRYJuly 2024November 2025Allow1620NoNo
18750918MULTILAYER FLUIDIC DEVICES AND METHODS FOR THEIR FABRICATIONJune 2024September 2025Allow1410NoNo
18750532LIQUID CHROMATOGRAPHY- MASS SPECTROMETRY (LC-MS) METHODS FOR ANALYZING AMPHOLYTE LOT VARIATIONJune 2024February 2025Allow800YesNo
18747878MULTIPLEXED BEAD-BASED ANALYTICAL ASSAYSJune 2024July 2025Allow1310NoNo
18717425MICROFLUIDIC CHIP FOR SORTING LIVING CELLSJune 2024April 2025Allow1010YesNo
18737836PSEUDO-ELECTROPHEROGRAM CONSTRUCTION FROM PEPTIDE LEVEL MASS SPECTROMETRY DATAJune 2024February 2025Allow900NoNo
18733911Fabry Perot Interferometry for Measuring Cell ViabilityJune 2024August 2025Allow1411YesNo
18733224DEVICES, SYSTEMS AND METHODS FOR DETECTING, MEASURING AND MONITORING CHEMICALS OR CHARACTERISTICS OF SUBSTANCESJune 2024January 2025Allow800NoNo
18669323METHODS FOR QUANTITATION OF INSULIN AND C-PEPTIDEMay 2024February 2025Allow900NoNo
18667572NANOPORE ARRAYSMay 2024April 2025Allow1100NoNo
18665917HIGH-THROUGHPUT MICROFLUIDIC CHIP HAVING PARALLELIZED CONSTRICTIONS FOR PERTURBING CELL MEMBRANESMay 2024August 2025Allow1521NoNo
18666148PORTABLE FORMULATING APPARATUS AND SYSTEMMay 2024December 2025Allow1911NoNo
18665277MICROFLUIDIC DEVICEMay 2024January 2025Allow800YesNo
18664880Micro-Fluidic Substrate, Micro-Fluidic Structure and Driving Method ThereofMay 2024December 2024Allow800NoNo
18663402MEANS AND METHODS FOR SINGLE MOLECULE PEPTIDE SEQUENCINGMay 2024May 2025Allow1210NoNo
18662607ALDEHYDE DETECTION AND ANALYSIS USING SURFACE-ENHANCED RAMAN SPECTROSCOPYMay 2024January 2025Allow800YesNo
18655434CLOSED LOOP CONTROL OF MICROFLUIDIC SYSTEMSMay 2024August 2024Allow310YesNo
18649919SEPARATING AND QUANTIFYING UNBOUND TARGET ANALYTES FROM BIOLOGICAL SAMPLESApril 2024November 2025Allow1810YesNo
18646572SYSTEMS AND METHODS FOR GENERATING DROPLETS AND PERFORMING DIGITAL ANALYSESApril 2024December 2024Allow800YesNo
18645161SYSTEMS AND METHODS FOR SAMPLE PREPARATION, DATA GENERATION, AND PROTEIN CORONA ANALYSISApril 2024February 2025Allow1020YesNo
18644592REAGENTS AND METHODS FOR ELEMENTAL MASS SPECTROMETRY OF BIOLOGICAL SAMPLESApril 2024February 2025Allow1010NoNo
18643880BIOMARKERS FOR MULTIPLE SCLEROSISApril 2024August 2025Allow1610YesNo
18641661Method for full Os isotope static measurement at low-content/small-size sampleApril 2024February 2025Allow1000NoNo
18639567BIOMARKER DETECTION FROM BREATH SAMPLESApril 2024July 2025Abandon1510NoNo
18637954SYSTEM AND METHOD FOR IMMUNE ACTIVITY DETERMINATIONApril 2024July 2025Allow1510NoNo
18633852TEMPERATURE CONTROL ON DIGITAL MICROFLUIDICS DEVICEApril 2024December 2024Allow810NoNo
18633224SYSTEM AND METHOD FOR RETRIEVING AND ANALYZING PARTICLESApril 2024June 2024Allow200YesNo
18632030DEPARAFFINIZATION OF TISSUE BY ELECTRIC FIELD GENERATION AND IONIZATIONApril 2024February 2025Allow1000YesNo
18698885HIGH TEMPERATURE HIGH PRESSURE ASPHALTENE DEPOSITION/INHIBITOR SCREENING TESTApril 2024August 2024Allow410YesNo
18627030PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESApril 2024November 2024Allow710NoNo
18627091PROTEIN SEQUENCING VIA COUPLING OF POLYMERIZABLE MOLECULESApril 2024November 2024Allow810NoNo
18624324MICROFLUIDIC CHIPApril 2024January 2026Allow2110YesNo
18624276DROPLET INTERFACES IN ELECTRO-WETTING DEVICESApril 2024April 2025Allow1200NoNo
18623934METHODS AND DEVICES FOR DETECTING A PATHOGEN AND ITS MOLECULAR COMPONENTSApril 2024January 2025Allow1000NoNo
18623412METHODS OF CHARACTERIZING A URINE SAMPLEApril 2024January 2025Allow1000NoNo
18616649INTEGRATED FLUIDIC DEVICES AND RELATED METHODSMarch 2024January 2026Allow2230NoNo
18615276SINGLE-MOLECULE PROTEIN AND PEPTIDE SEQUENCINGMarch 2024April 2025Allow1210YesNo
18616075OPTICAL READER FOR ANALYTE TESTINGMarch 2024May 2025Allow1410YesNo
18615536Method and System for Solventless Calibration of Volatile or Semi-Volatile CompoundsMarch 2024December 2024Allow910NoNo
18612468ANALYTE DETECTION APPARATUSMarch 2024September 2024Allow610YesNo
18609494MICROFLUIDIC SIPHONING ARRAY FOR NUCLEIC ACID QUANTIFICATIONMarch 2024October 2025Allow1920NoNo
18607070SYSTEMS AND METHODS FOR TISSUE SAMPLE PROCESSINGMarch 2024February 2025Allow1110YesNo
18606701SYSTEM AND METHOD FOR PROTEIN CORONA SENSOR ARRAY FOR EARLY DETECTION OF DISEASESMarch 2024October 2024Allow700NoNo
18691905METHOD FOR INCREASING NUMBER OF PROTEINS IDENTIFIED BY MASS SPECTROMETRYMarch 2024January 2025Allow1020YesNo
18604002SYSTEMS AND METHODS FOR THE DETECTION AND ANALYSIS OF FREE THIOLMarch 2024November 2024Allow800YesNo
18603943URINARY MICROBIOMIC PROFILINGMarch 2024February 2025Allow1121NoNo
18602727PHYSIOLOGY AND PATHOPHYSIOLOGY OF HUMAN GUT: INTESTINE-ON-CHIPMarch 2024January 2025Allow1010NoNo
18603030DETERMINISTIC RATCHET FOR SUB-MICROMETER BIOPARTICLE SEPARATIONMarch 2024August 2025Abandon1720YesNo
18601452DIAGNOSTIC DEVICE AND SYSTEMMarch 2024November 2025Allow2020NoNo
18599879PORE STRUCTURE FOR SEPARATION OF ADENO-ASSOCIATED VIRUSES (AAVS) FROM THEIR AGGREGATESMarch 2024June 2025Allow1530YesNo
18597605SYSTEMS AND METHODS RELATED TO CONTINUOUS FLOW DROPLET REACTIONMarch 2024March 2025Allow1200NoNo
18592457AIR-MATRIX DIGITAL MICROFLUIDICS APPARATUSES AND METHODS FOR LIMITING EVAPORATION AND SURFACE FOULINGFebruary 2024October 2024Allow800NoNo
18590471NOVEL PHOTOCLEAVABLE MASS-TAGS FOR MULTIPLEXED MASS SPECTROMETRIC IMAGING OF TISSUES USING BIOMOLECULAR PROBESFebruary 2024November 2024Allow810NoNo
18585915Sensor and Method for Detecting Target MoleculesFebruary 2024April 2025Allow1311NoNo
18444941CANCER MODELING PLATFORMS AND METHODS OF USING THE SAMEFebruary 2024February 2026Allow2431YesNo
18441250HANDHELD BIOMARKER MEASURING DEVICE USING NANOPOROUS ANODIC ALUMINUM OXIDE SUBSTRATE AND APPLICATION OF SAMEFebruary 2024October 2024Allow820YesNo
18440213MICROFLUIDIC METHOD FOR SINGLE CELL ANALYSISFebruary 2024September 2025Allow1920NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 1797.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
573
Examiner Affirmed
404
(70.5%)
Examiner Reversed
169
(29.5%)
Reversal Percentile
34.7%
Lower than average

What This Means

With a 29.5% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
2058
Allowed After Appeal Filing
563
(27.4%)
Not Allowed After Appeal Filing
1495
(72.6%)
Filing Benefit Percentile
23.6%
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, 27.4% 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.

Art Unit 1797 - Prosecution Statistics Summary

Executive Summary

Art Unit 1797 is part of Group 1790 in Technology Center 1700. This art unit has examined 28,728 patent applications in our dataset, with an overall allowance rate of 63.6%. Applications typically reach final disposition in approximately 37 months.

Comparative Analysis

Art Unit 1797's allowance rate of 63.6% places it in the 19% percentile among all USPTO art units. This art unit has a significantly lower allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 1797 receive an average of 1.88 office actions before reaching final disposition (in the 47% percentile). The median prosecution time is 37 months (in the 22% percentile).

Strategic Considerations

When prosecuting applications in this art unit, consider the following:

  • The art unit's allowance rate suggests a more challenging examination environment compared to the USPTO average.
  • With fewer office actions than average, plan for relatively streamlined prosecution.
  • The median prosecution time is longer than average and should be factored into your continuation and client communication strategies.
  • Review individual examiner statistics within this art unit to identify examiners with particularly favorable or challenging prosecution patterns.

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.