USPTO Art Unit 2877 Prosecution Statistics

Art Unit Information

Art Unit: 2877
Group: 2870
Tech Center: 2800
Total Cases: 21,327
Last Active: September 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19327963METHODS FOR VALIDATING MEDICATIONSeptember 2025January 2026Allow411NoNo
19294071SYSTEMS AND TECHNIQUES FOR VEHICLE INSPECTION AND CONDITION ANALYSISAugust 2025December 2025Allow410NoNo
19278440META-SURFACE-BASED SPECTRAL CONFOCAL DISPLACEMENT MEASUREMENT METHOD, DEVICE THEREOF AND STORAGE MEDIUMJuly 2025October 2025Allow300NoNo
19271577SYSTEMS AND METHODS FOR CHARACTERIZING ATMOSPHERIC EMISSIONSJuly 2025January 2026Allow600NoNo
19265644BATTERY APPEARANCE DETECTION DEVICE AND BATTERY MANUFACTURING EQUIPMENTJuly 2025February 2026Allow820NoNo
19263942AIRBORNE-PARTICLE DETECTOR AND DETECTION METHODJuly 2025January 2026Allow610NoNo
19257494POTABLE MULTIFUNCTIONAL DETECTION INSTRUMENTJuly 2025October 2025Allow400NoNo
19241050METHOD AND SYSTEM FOR DETECTING DEFECTS IN SOLAR PANELSJune 2025August 2025Allow200NoNo
19226252INTELLIGENT POLLEN MONITORING AND ANALYSIS SYSTEM AND ITS CONTROL METHODJune 2025October 2025Allow520NoNo
19215245Method for constructing infrared imaging dataset of gas leakage based on computational fluid dynamicsMay 2025July 2025Allow200NoNo
19214623SYSTEM AND METHODS FOR PROTEIN DETECTION IN BIOFLUIDSMay 2025January 2026Allow810NoNo
19213462BOLT AXIAL FORCE MEASUREMENT METHOD, DEVICE, APPARATUS, AND READABLE STORAGE MEDIUMMay 2025July 2025Allow200NoNo
19212404METHODS AND SYSTEMS FOR CELL IMAGINGMay 2025August 2025Allow300NoNo
19131101OPTICAL MEASUREMENT SYSTEMMay 2025March 2026Allow900NoNo
19198111CURVE-BASED RADIOMETRIC CALIBRATION METHOD AND SYSTEM OF SPACEBORNE HYPERSPECTRAL IMAGERMay 2025July 2025Allow200NoNo
19197417SYSTEM AND METHODS FOR DETECTING MATTRESS DEFECTSMay 2025January 2026Allow820YesNo
19196679SYSTEMS AND TECHNIQUES FOR VEHICLE INSPECTION AND CONDITION ANALYSISMay 2025December 2025Allow820NoNo
19187556EDGE SHAPE MEASUREMENT APPARATUS AND METHOD OF MEASURING EDGE SHAPEApril 2025March 2026Allow1120YesNo
19186604METHOD AND DEVICE FOR REMOVING BACKGROUND NOISE IN MICROSCOPIC IMAGING BASED ON FREQUENCY-DOMAIN MODULATIONApril 2025July 2025Allow300NoNo
18872823SHAPE MEASUREMENT DEVICE AND SHAPE MEASUREMENT METHODApril 2025February 2026Allow1500NoNo
19091907SYSTEM AND METHOD FOR SYNCHRONOUSLY DETECTING THICKNESS AND DOUBLE-SIDE SURFACE PROFILESMarch 2025March 2026Allow1120NoNo
19081428IMAGING SYSTEM AND METHODMarch 2025July 2025Allow410NoNo
19074054WATER-MIST-PENETRATING TEMPERATURE MEASUREMENT SYSTEM AND METHOD FOR STEEL HOT ROLLINGMarch 2025August 2025Allow510NoNo
19073498Self-Referencing Interferometric MicroscopeMarch 2025July 2025Allow401NoNo
19068065MONOCULAR HIGH-RESOLUTION MULTISPECTRAL IMAGING SYSTEM AND CONTROL METHODMarch 2025July 2025Allow400NoNo
19067531INTEGRATED SPECTROSCOPIC SYSTEM WITH CUVETTE HOLDERS AND HOMOGENIZED ILLUMINATIONFebruary 2025July 2025Allow510YesNo
19056155HYBRID FREE SPACE OSCILLATORS FOR ULTRAPRECISION SENSOR APPLICATIONSFebruary 2025September 2025Allow710NoNo
19050445HYBRID DISPLACEMENT MEASURING DEVICEFebruary 2025April 2025Allow300NoNo
19050210LITTROW GRATING INTERFEROMETRY DEVICE AND USE THEREOFFebruary 2025June 2025Allow410NoNo
19044140STIMULATED RAMAN PHOTOTHERMAL MICROSCOPE WITH OPTICAL PARAMETRIC AMPLIFIER SOURCEFebruary 2025August 2025Allow610NoNo
19043183HIGH INTENSITY ILLUMINATION SYSTEMS AND METHODS OF USE THEREOFJanuary 2025June 2025Allow410NoNo
19100194CHARACTERIZING OPTICAL SYSTEM PERFORMANCE WITH A COLOR CAMERAJanuary 2025July 2025Allow500NoNo
19036518APPARATUS AND METHOD FOR MICROSECOND-SCALE MID-INFRARED ENERGY DEPOSITION (MIRED) SPECTROSCOPY AND MICROSCOPYJanuary 2025April 2025Allow200NoNo
19035744COMPACT FIBER OPTIC GYROSCOPE WITH FEEDBACK-ENHANCED FREQUENCY INTERFEROMETRY FOR PRECISION MEASUREMENTJanuary 2025April 2025Allow200NoNo
18998074NOVEL TECHNIQUES FOR EXAMINATION OF LIGHT OPTICAL ELEMENTSJanuary 2025August 2025Allow711NoNo
190310613D CAMERAS OR SENSORS INPUTTING TO MULTI-MODAL GENERATIVE ARTIFICIAL INTELLIGENCE MODELS TRAINED ON IMAGES OR VIDEOSJanuary 2025January 2026Allow1201NoNo
19025771NON-CONTACT OPTICAL AXIS AND PUPIL CENTER DETECTION APPARATUSJanuary 2025May 2025Allow410YesNo
19020962Cell Sorting Using A High Throughput Fluorescence Flow CytometerJanuary 2025March 2025Allow200NoNo
19019616LASER-RANGING TELESCOPE WITH SWITCHABLE MAGNIFICATIONJanuary 2025July 2025Allow610NoNo
18993787CALIBRATION METHOD OF MEASUREMENT TEMPERATURE OF CONCENTRATION MEASUREMENT APPARATUS, AND CONCENTRATION MEASUREMENT APPARATUSJanuary 2025July 2025Allow610YesNo
18856821DEVICE AND METHOD FOR DETERMINING A SEDIMENTATION RATEJanuary 2025July 2025Allow910NoNo
18856808DEVICE AND METHOD FOR PERFORMING A COMPLETE BLOOD COUNT AND DETERMINING A SEDIMENTATION RATEJanuary 2025March 2026Allow1720YesNo
19009882SYSTEMS AND TECHNIQUES FOR VEHICLE INSPECTION AND CONDITION ANALYSISJanuary 2025April 2025Allow300NoNo
19006664OPTICAL PROBE DEVICE FOR ANALYZING COMPONENT OF UNDERWATER SUBSTANCE AND METHOD OF ANALYZING COMPONENT OF UNDERWATER SUBSTANCE BY USING THE SAMEDecember 2024July 2025Allow610NoNo
18880001PARTICLES CHARACTERIZATION IN FLOW CYTOMETRYDecember 2024April 2025Allow300NoNo
19004565METHOD AND DEVICE FOR CHARACTERIZING A RESONATOR ELEMENTDecember 2024June 2025Allow610NoNo
19004437FIRE SMOKE DETECTION METHOD AND FIRE SMOKE DETECTOR BASED ON PARTICLE SHAPE CHARACTERISTICSDecember 2024April 2025Allow300NoNo
18879735APPARATUS AND METHOD FOR EXTENDED DEPTH OF FIELDDecember 2024June 2025Allow600NoNo
18879152METHOD, OPTICAL FILTER SYSTEM, OPTICAL MEASUREMENT DEVICE AND USEDecember 2024March 2025Allow300NoNo
18879232PREPARATION METHOD AND USE OF METAL-ORGANIC FRAMEWORKS (MOFs)-BASED COMPOSITE PRETREATMENT MATERIAL FOR ELIMINATING CAPSAICIN (CAP) INTERFERENCEDecember 2024October 2025Allow1000NoNo
18988955MULTI-LAYER DETACHABLE SINGLE-AXIS FIBER OPTIC SENSING DEVICEDecember 2024August 2025Allow820YesNo
18988759MULTICHANNEL OPTICAL SWITCH FOR IN-LINE SPECTROSCOPIC COMPOUND ANALYSISDecember 2024October 2025Allow1011YesNo
18984931OPTICAL FIBER-TYPED SPECTRAL CONFOCAL COHERENCE TOMOGRAPHY OPTICAL SYSTEM AND APPLICATION THEREOFDecember 2024June 2025Allow610NoNo
18984964DEVICE FOR MEASURING THE REFRACTIVE INDEX OF A FLUIDDecember 2024July 2025Allow600NoNo
18975094COMPREHENSIVE ENVIRONMENTAL MONITOR AND SPECTROSCOPIC ANALYSIS METHODDecember 2024August 2025Allow811NoNo
18974563IMAGING DEVICE AND METHOD FOR TURBID OIL ABRASIVE PARTICLES BASED ON POLARIZED IMAGE ENHANCEMENTDecember 2024February 2025Allow200NoNo
18966467OPTICAL MEASUREMENTSDecember 2024March 2025Allow301NoNo
18961487COLLABORATIVE WELD SEAM TRACKING METHOD BASED ON LASER LINE SCANNING SENSING AND PLATFORM THEREOFNovember 2024February 2025Allow300NoNo
18870275METHODS FOR COMPENSATING MEASUREMENTS OF DEVICES UNDER TEST (DUTS) CAPTURED THROUGH PRESCRIPTION LENSES, AND ASSOCIATED IMAGING SYSTEMS, DEVICES, AND METHODSNovember 2024February 2025Allow300NoNo
18958180DEVICE FOR MEASURING DIAMETER ERROR OF ROLLER FOR THREADED PAIR TRANSMISSIONNovember 2024February 2025Allow200NoNo
18956055SCHLIEREN SYSTEM FOR IN-SITU/ONLINE MONITORING OF SPATTER IN LARGE-AREA MELT POOLNovember 2024January 2026Allow1410YesNo
18864531TIME-RESOLVED SPECTRUM RAPID MEASUREMENT SYSTEM AND METHODNovember 2024July 2025Allow810NoNo
18939263FLOW CYTOMETERNovember 2024April 2025Allow520YesNo
18930957METHOD AND MINIATURIZED APPARATUS FOR RAMAN SPECTROSCOPY USING ROTATABLE DIFFRACTION GRATING AND SLITOctober 2024December 2024Allow200NoNo
18930946METHOD AND APPARATUS FOR RAMAN SIGNAL ANALYSISOctober 2024February 2025Allow400NoNo
18927698WEARABLE DEVICE FOR DIFFERENTIAL MEASUREMENT ON PULSE RATE AND BLOOD FLOWOctober 2024February 2025Allow400YesNo
18922440VISUAL TURBIDITY DETECTION DEVICE AND DETECTION METHOD THEREOFOctober 2024March 2025Allow510NoNo
18919048SINGLE WAFER ORIENTATION TOOL-INDUCED SHIFT CLEANINGOctober 2024November 2025Allow1310NoNo
18856590GAS DETECTING DEVICEOctober 2024November 2025Allow1300YesNo
18907185PHOTOLUMINESCENT TEMPERATURE MEASUREMENT SYSTEMOctober 2024February 2026Allow1710NoNo
18854183DEVICE ASSEMBLY AND METHOD FOR CALIBRATING A SINGLE-USE SENSOROctober 2024January 2026Allow1600NoNo
18853189A METHOD AND SYSTEM FOR MEASUREMENT OF OPTICAL LOSS IN WAFER LEVEL TESTING VIA WAVELENGTH-ROUTE DIVISIONOctober 2024March 2026Allow1800YesNo
18899012WEARABLE DEVICE FOR DIFFERENTIAL MEASUREMENT ON PULSE RATE AND BLOOD FLOWSeptember 2024January 2026Allow1601NoNo
18896369BIDIRECTIONAL LITTROW TWO-DEGREE-OF-FREEDOM GRATING INTERFERENCE MEASUREMENT DEVICE BASED ON DOUBLE GRATINGSSeptember 2024January 2025Allow410NoNo
18892499TWIST AND TILT VERIFICATION USING DIFFRACTION PATTERNSSeptember 2024November 2025Allow1320YesNo
18892126IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE, AND PROGRAMSeptember 2024March 2026Allow1800NoNo
18891376GRATING DISPLACEMENT MEASUREMENT DEVICE AND METHOD USING DOUBLE-LAYER FLOATING READING HEAD, MEDIUM, AND APPARATUSSeptember 2024November 2024Allow210NoNo
18848558DEVICE FOR IN SITU OBSERVATION OF SAMPLE UNDER TESTSeptember 2024March 2026Allow1800NoNo
18889417FIBER BRAGG GRATING CURVATURE SENSING TEST DEVICE AND TEST METHOD THEREOFSeptember 2024March 2026Allow1800NoNo
18887176MULTISPECTRAL FILTERSeptember 2024February 2026Allow1700YesNo
18718627BLOOD TREATMENT MACHINE FOR EXTRACORPOREAL BLOOD TREATMENT AND SYSTEM FOR RECOGNIZING BLOOD OR BLOOD CONSTITUENTSSeptember 2024February 2026Allow2100NoNo
18887436METHOD AND APPARATUS FOR ANALYZING A GEMSTONESeptember 2024January 2025Allow410NoNo
18885002BIREFRINGENCE MITIGATION IN AN OPTICAL NETWORKSeptember 2024November 2024Allow200NoNo
18847136OPTICAL SPECTROSCOPY FOR CHARACTERIZING ATMOSPHERIC EMISSIONSSeptember 2024March 2025Allow600YesNo
18885420MITIGATING BIAS INSTABILITIES IN OPTICAL GYROSCOPESSeptember 2024August 2025Allow1120NoNo
18846034SPATIAL LIGHT MODULATION DEVICE, PROCESSING DEVICE, AND POSITION ESTIMATION METHODSeptember 2024February 2026Allow1700NoNo
18845377LONG-PATH GAS ABSORPTION CELL OPTICAL SYSTEMSeptember 2024July 2025Allow1010NoNo
18828306SYSTEM AND METHOD FOR ACTIVE HYPERSPECTRAL IMAGING WITH SUPERCONTINUUM LIGHTSeptember 2024March 2025Allow610NoNo
18827528ACCURATE METHANE DETECTION USING TUNED LIDAR MODULATIONSeptember 2024November 2024Allow200NoNo
18824998DETECTION SYSTEM, COMPENSATION METHOD, AND COMPUTER READABLE MEDIUM FOR SEMICONDUCTOR SURFACE MORPHOLOGYSeptember 2024March 2026Allow1800NoNo
18823596FLOW CYTOMETERSeptember 2024October 2024Allow200NoNo
18822901SPECTRAL ANGULAR METROLOGYSeptember 2024October 2025Allow1410NoNo
18822361IMAGING SYSTEMSeptember 2024February 2026Abandon1800NoNo
18821845RAMAN SPECTROSCOPY SYSTEM WITH STANDOFF DETECTIONAugust 2024February 2026Allow1800NoNo
18820386INTERFEROMETRIC METHOD FOR MEASURING OPTICAL DISTANCEAugust 2024January 2026Allow1700NoNo
18819684OPTICAL LEAK SENSING WITH FLEXIBLE WAVEGUIDESAugust 2024February 2026Allow1800NoNo
18818510SYSTEM AND METHOD OF INSPECTING A SURFACEAugust 2024March 2026Allow1800NoNo
18818580SEMI-SPHERICAL CALIBRATION OBJECTS FOR INSPECTION CAMERA ASSEMBLYAugust 2024February 2026Allow1800NoNo
18815055WELDING CONDITION EVALUATION METHODAugust 2024March 2026Allow1800NoNo
18815092LIGHT REFLECTION SUPPORT AND THROUGH HOLE INSPECTION SYSTEMAugust 2024February 2025Allow610NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2877.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
68
Examiner Affirmed
47
(69.1%)
Examiner Reversed
21
(30.9%)
Reversal Percentile
43.5%
Lower than average

What This Means

With a 30.9% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage 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
489
Allowed After Appeal Filing
191
(39.1%)
Not Allowed After Appeal Filing
298
(60.9%)
Filing Benefit Percentile
84.7%
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, 39.1% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the top 25% across the USPTO, indicating that filing appeals is particularly effective here. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Strategic Recommendations

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

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

Art Unit 2877 - Prosecution Statistics Summary

Executive Summary

Art Unit 2877 is part of Group 2870 in Technology Center 2800. This art unit has examined 21,327 patent applications in our dataset, with an overall allowance rate of 86.5%. Applications typically reach final disposition in approximately 27 months.

Comparative Analysis

Art Unit 2877's allowance rate of 86.5% places it in the 83% percentile among all USPTO art units. This art unit has a significantly higher allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 2877 receive an average of 1.29 office actions before reaching final disposition (in the 11% percentile). The median prosecution time is 27 months (in the 70% percentile).

Strategic Considerations

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

  • The art unit's allowance rate suggests a more favorable examination environment compared to the USPTO average.
  • With fewer office actions than average, plan for relatively streamlined prosecution.
  • The median prosecution time is shorter 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.