USPTO Art Unit 2852 Prosecution Statistics

Art Unit Information

Art Unit: 2852
Group: 2850
Tech Center: 2800
Total Cases: 45,417
Last Active: August 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19311900DRUM CARTRIDGE AND DEVELOPING CARTRIDGE CAPABLE OF SUPPRESSING VARIATION IN POSITION OF ELECTRICAL CONTACT SURFACEAugust 2025March 2026Allow610NoNo
19260450FOLDED CAMERA WITH CONTINUOUSLY ADAPTIVE ZOOM FACTORJuly 2025December 2025Allow510NoNo
19259619NMR APPARATUS WITH FLEXIBLE SAMPLE TRANSPORT TUBEJuly 2025August 2025Allow100NoNo
19257795Transfer of an Image Impression Between Different Magnetic Resonance Imaging SystemsJuly 2025August 2025Allow200NoNo
19235128ADJUSTABLE ARCHWAY SYSTEM WITH INTEGRATED LIGHTING, PIVOT JOINTS, AND PATTERNED DESIGNJune 2025January 2026Allow710NoNo
19232173DRUM CARTRIDGE AND DEVELOPING CARTRIDGE CAPABLE OF SUPPRESSING VARIATION IN POSITION OF ELECTRICAL CONTACT SURFACEJune 2025December 2025Allow610NoNo
19213018CRYSTALLINE FILM OF OCTACALCIUM PHOSPHATE AND METHOD FOR PRODUCING THE SAMEMay 2025July 2025Allow200NoNo
19207469METHOD FOR LOCATING A HYDROCARBON-CONTAINING GEOLOGIC FORMATION AND EXTRACTING OIL AND/OR GASMay 2025July 2025Allow210NoNo
19208298FOLDABLE SOFTBOX CHUCKMay 2025July 2025Allow200NoNo
19208103Test Device and Test Method for Impact Resistance of Anchor BodyMay 2025August 2025Allow300NoNo
19204230COORDINATE CORRECTION SYSTEM AND CORRECTION METHOD OF ROLL MAP IN ELECTRODE BREAKAGEMay 2025November 2025Allow710NoNo
19192719PROCESS CARTRIDGE INSTALLABLE INTO MAIN ASSEMBLY OF IMAGING APPARATUSApril 2025September 2025Allow410NoNo
19185753METHOD AND SYSTEM FOR IDENTIFYING GEOLOGICAL FORMATION AND DRILLING HYDROCARBON WELLApril 2025July 2025Allow310NoNo
19174999Method and System for Determining an Orientation and an X-Coordinate of a Movable Object Relative to a B0 Field MagnetApril 2025February 2026Allow1000NoNo
19095419SYSTEM, METHOD AND COMPUTER-ACCESSIBLE MEDIUM FOR DIFFUSION MRI WITHOUT SHELLSMarch 2025January 2026Allow1010NoNo
19091913Magnetic Resonance System with Spatial Selectivity and Working Method ThereofMarch 2025June 2025Allow300NoNo
19084870PROCESS CARTRIDGEMarch 2025June 2025Allow210NoNo
19082475PIPELINE DETECTORMarch 2025August 2025Allow500NoNo
19077437DEVELOPING CARTRIDGE CAPABLE OF REDUCING SIZE OF IMAGE FORMING APPARATUSMarch 2025May 2025Allow200NoNo
19077595FIXING APPARATUS HAVING UNIFORM SURFACE POTENTIAL DIFFERENCE BETWEEN FIXING FILM AND PRESSURE ROLLER AND IMAGE FORMING APPARATUS THEREOFMarch 2025March 2026Allow1210NoNo
19072095DEVELOPING APPARATUSMarch 2025March 2026Allow1220NoNo
19071922IMAGE HEATING APPARATUS THAT DETERMINES IF A REGION IS A PASSING REGION BASED ON A TEMPERATURE DEVIATION RELATED TO A REFERENCE HEATING REGION, AND IMAGE FORMING APPARATUSMarch 2025February 2026Allow1110NoNo
19067858SCANNING TELE CAMERA BASED ON TWO PRISM FIELD-OF-VIEW SCANNINGMarch 2025August 2025Allow510NoNo
19060898COMPACT FOLDED CAMERAFebruary 2025March 2025Allow100NoNo
18852734MISSION EQUIPMENT MOUNT APPARATUS WITH IMPROVED CONTROL PERFORMANCEFebruary 2025April 2025Allow700NoNo
19057723FLOWMETERFebruary 2025June 2025Allow400NoNo
19052142DEVELOPING CARTRIDGEFebruary 2025May 2025Allow310NoNo
19050822IMAGE FORMING APPARATUSFebruary 2025February 2026Allow1200NoNo
19050922SYSTEMS AND METHODS FOR ACCURATELY PREDICTING STATE OF CHARGE IN BATTERY POWERED SYSTEMSFebruary 2025April 2025Allow200NoNo
19046333IMAGE FORMATION ADJUSTMENT METHOD AND IMAGE FORMING APPARATUSFebruary 2025March 2026Allow1300NoNo
19045870IMAGE FORMING SYSTEMFebruary 2025March 2026Allow1300NoNo
19043090IMAGE FORMING APPARATUS, AND METHOD FOR CONTROLLING THE SAMEJanuary 2025March 2026Allow1400NoNo
19040230FIXING DEVICE AND IMAGE FORMING APPARATUS EACH CAPABLE OF PREVENTING FIXING MEMBER FROM BEING DAMAGED BY EXCESSIVE HEATINGJanuary 2025March 2026Allow1300NoNo
19040322EXPOSURE APPARATUS AND IMAGE-FORMING APPARATUSJanuary 2025February 2026Allow1300NoNo
19039368PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUSJanuary 2025March 2026Allow1300NoNo
19039281CARTRIDGE WITH A GRIPPING PORTIONJanuary 2025February 2026Allow1200NoNo
19038663PROCESS CARTRIDGEJanuary 2025April 2025Allow310YesNo
18998906HOLDING OF NMR MEASUREMENT SAMPLES IN A SPACE-RESTRICTED NMR SPECTROMETERJanuary 2025June 2025Allow500NoNo
19036926BATTERY PROFILE GENERATING APPARATUS AND BATTERY PROFILE GENERATING METHODJanuary 2025October 2025Allow910NoNo
19035636PRINTING SYSTEM, CONTROL METHOD THEREOF, AND STORAGE MEDIUMJanuary 2025February 2026Allow1300NoNo
19033722IMAGE FORMING APPARATUS CONFIGURED TO PERFORM INITIALIZATION PROCESS FOR FIRST CONSUMABLE AND SECOND CONSUMABLE ATTACHED TO MAIN CASING IN ACCORDANCE WITH RECEIVED INSTRUCTIONJanuary 2025January 2026Allow1200NoNo
19031966CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUSJanuary 2025January 2026Allow1200NoNo
19028667CARTRIDGE INCLUDING A MEMORY MOUNTING PORTION AND IMAGE FORMING APPARATUS INCLUDING THE CARTRIDGEJanuary 2025February 2026Allow1300NoNo
19026559CONDUCTIVE MEMBER, CHARGING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUSJanuary 2025February 2026Allow1300NoNo
19029999DEVELOPING CARTRIDGEJanuary 2025June 2025Allow510NoNo
19026859LITHOLOGY IDENTIFICATION METHOD, LITHOLOGY IDENTIFICATION DEVICE, ELECTRONIC APPARATUS AND NON-TRANSITORY STORAGE MEDIUMJanuary 2025May 2025Allow410NoNo
19027468POWER RECEIVING UNIT AND PROCESSING CARTRIDGEJanuary 2025March 2026Allow1400NoNo
19026064FIXING DEVICEJanuary 2025January 2026Allow1200NoNo
19023993BIOLOGICAL AVAILABILITY TESTING DEVICE FOR SIMULATING A STRUCTURE OF A RESPIRATORY SYSTEMJanuary 2025May 2025Allow400NoNo
19025035AUTOMATIC HIGH PRECISION BATTERY MATERIAL ASSESSMENT SYSTEMJanuary 2025July 2025Allow600NoNo
19023762ELECTROPHOTOGRAPHIC MEMBER, FIXING DEVICE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUSJanuary 2025February 2026Allow1300NoNo
19019529ROTATING PHOTO BOOTHJanuary 2025June 2025Allow510NoNo
19019691FIXING UNIT AND IMAGE FORMING APPARATUSJanuary 2025February 2026Allow1300NoNo
19019126IMAGE FORMING APPARATUSJanuary 2025March 2026Allow1400NoNo
19019040IMAGE FORMING DEVICEJanuary 2025January 2026Allow1300NoNo
19015975ELECTROPHOTOGRAPHIC BELT, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC BELT, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUSJanuary 2025January 2026Allow1200NoNo
19014841IMAGE FORMING APPARATUS HAVING OPTICAL SCANNING UNIT WITH WIRE HARNESS AND CONNECTORJanuary 2025February 2026Allow1400NoNo
19014233CHARGING ROLL FOR ELECTROPHOTOGRAPHIC MACHINEJanuary 2025January 2026Allow1200NoNo
19014156IMAGE FORMING APPARATUS WITH DEVELOPING DEVICES THAT ARE LOCKED/UNLOCKED WHEN PULLED OUT OF APPARATUS MAIN BODYJanuary 2025March 2026Allow1400NoNo
19012927CHARGING ROLL FOR ELECTROPHOTOGRAPHIC APPARATUSJanuary 2025March 2026Allow1410NoNo
19013093FIXING ROTATING MEMBER, FIXING DEVICE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, METHOD FOR MANUFACTURING FIXING ROTATING MEMBER, AND CONDUCTIVE MEMBERJanuary 2025February 2026Allow1300NoNo
19011653SHEET-SHAPED SEALING MEMBER, REMOVABLE UNIT, AND IMAGE FORMING APPARATUSJanuary 2025February 2026Allow1300NoNo
18992092LIGHT SUPPLEMENTING APPARATUS FOR A DEVICE WITH A CAMERA AND A DEVICE WITH A CAMERAJanuary 2025June 2025Allow600NoNo
19011806Measurement Position Error Determination in a Magnetic Resonance DeviceJanuary 2025April 2025Allow300NoNo
19010710IMAGE FORMING APPARATUSJanuary 2025December 2025Allow1200NoNo
19008960IMAGE FORMING APPARATUS INCLUDING CLEANING PORTION THAT PERFORMS CLEANING SENSING SURFACE OF SENSOR FOR OUTPUTTING SENSING VALUE RELATED TO TONER DENSITYJanuary 2025March 2026Allow1410NoNo
19008806DRUM CARTRIDGE INCLUDING MOVABLE HOLDER HAVING HOLDER TERMINAL, AND RELAY ELECTRODE ELECTRICALLY CONNECTABLE TO HOLDER TERMINAL AND MEMORY OF DEVELOPING CARTRIDGE ATTACHED TO DRUM FRAMEJanuary 2025January 2026Allow1200NoNo
19007738TONER RAKE ASSEMBLY WITH STATIC TINES FOR IMPROVED TONER RAKINGJanuary 2025January 2026Allow1300NoNo
19006296Optimal pulse power measurement method and system for multinuclear simultaneous integrated magnetic resonance imagingDecember 2024March 2025Allow300NoNo
19002937FIXING RUBBING MEMBER AND FIXING APPARATUSDecember 2024January 2026Allow1300NoNo
18879243IMAGE FORMING APPARATUSDecember 2024December 2025Allow1200NoNo
19000099IMAGE FORMING APPARATUSDecember 2024January 2026Allow1200NoNo
18991428IMAGE FORMING APPARATUSDecember 2024February 2026Allow1400NoNo
18989998ATHLETIC GLOVEDecember 2024May 2025Allow510NoNo
18990928DETECTION OF CAMERA LENS COVER POSITION BY BACKLIGHTINGDecember 2024February 2025Allow200NoNo
18989675DEVELOPING CARTRIDGE INCLUDING FIRST FRAME SUPPORTING DEVELOPING ROLLER AND HAVING LOAD RECEIVING SURFACE, AND SECOND FRAME FIXED TO FIRST FRAMEDecember 2024February 2026Allow1400NoNo
18987889IMAGE FORMING APPARATUS PERFORMING IMAGE DENSITY CONTROL BASED ON DEVELOPER AMOUNTDecember 2024March 2026Allow1400NoNo
18988745IMAGE FORMING APPARATUSDecember 2024February 2026Allow1400NoNo
18987617IMAGE FORMING APPARATUSDecember 2024February 2026Allow1400NoNo
18985251ESTIMATING AN INFLUENCE OF A MAGNETIC RESONANCE TOMOGRAPHY SEQUENCE ON AT LEAST ONE COMPONENT IN OR ON AN EXAMINATION TUNNEL AND PROTECTION OF THE COMPONENTDecember 2024April 2025Allow300NoNo
18875314TONER SEAL MEMBER AND TONER CARTRIDGEDecember 2024January 2026Allow1300NoNo
18982033IMAGE FORMING APPARATUSDecember 2024January 2026Allow1300NoNo
18982662IMAGE FORMING APPARATUSDecember 2024February 2026Allow1400NoNo
18981109PRINTING SYSTEM, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUMDecember 2024January 2026Allow1400NoNo
18980170IMAGE FORMING APPARATUS INCLUDING MOVABLE DRAWER HAVING GUIDE SURFACE FOR GUIDING ATTACHMENT OF PROCESS CARTRIDGEDecember 2024December 2025Allow1300NoNo
18978259IMAGE FORMING APPARATUS HAVING MOVING DEVICE TO MOVE CARTRIDGE TO ATTACHED AND RETRACTED POSITIONSDecember 2024January 2026Allow1300NoNo
18978578IMAGE FORMING APPARATUS HAVING A DRAWERDecember 2024March 2026Allow1510NoNo
18977920HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUSDecember 2024February 2026Allow1410NoNo
18977921PRESSURE SWITCHING DEVICE, IMAGE FORMING APPARATUS, AND PRESSURE SWITCHING METHODDecember 2024December 2025Allow1200NoNo
18874390Apparatus and Method for Diagnosing BatteryDecember 2024June 2025Allow610NoNo
18978480DEVELOPER ACCOMMODATING CONTAINER AND IMAGE FORMING APPARATUSDecember 2024November 2025Allow1100NoNo
18977220CIRCUIT ARRANGEMENT FOR CORRECTING AN INPUT SIGNAL, AND MRI-ET HYBRID IMAGING DEVICEDecember 2024April 2025Allow500NoNo
18977912TONER CONVEYING DEVICE AND IMAGE FORMING APPARATUSDecember 2024November 2025Allow1100NoNo
18975460IMAGE FORMING APPARATUS HAVING A RETRACTABLE CARTRIDGEDecember 2024March 2026Allow1510NoNo
18973568IMAGE FORMING APPARATUS INCLUDING SHEET DISCHARGE UNITDecember 2024March 2026Allow1510NoNo
18973656IMAGE FORMING APPARATUS HAVING TONER REPLENISHMENTDecember 2024December 2025Allow1200NoNo
18873047NMR probe for efficient MAS-DNP operation at ultra-low temperaturesDecember 2024May 2025Allow510NoNo
18970905BELT MEMBER FOR ELECTROPHOTOGRAPHIC APPARATUSDecember 2024October 2025Allow1000NoNo
18970134FIXING DEVICE THAT CAN PREVENT VARIATION OF PRESSURE APPLIED BY A PRESSING ROLLER AND INCLINATION OF A NIP FORMING MEMBER, AND IMAGE FORMING APPARATUS PROVIDED THEREWITHDecember 2024January 2026Allow1410NoNo
18970192IMAGE FORMING APPARATUSDecember 2024October 2025Allow1000NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2852.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
83
Examiner Affirmed
63
(75.9%)
Examiner Reversed
20
(24.1%)
Reversal Percentile
12.9%
Lower than average

What This Means

With a 24.1% 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
369
Allowed After Appeal Filing
124
(33.6%)
Not Allowed After Appeal Filing
245
(66.4%)
Filing Benefit Percentile
56.9%
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, 33.6% 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 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 2852 - Prosecution Statistics Summary

Executive Summary

Art Unit 2852 is part of Group 2850 in Technology Center 2800. This art unit has examined 45,417 patent applications in our dataset, with an overall allowance rate of 90.7%. Applications typically reach final disposition in approximately 20 months.

Comparative Analysis

Art Unit 2852's allowance rate of 90.7% places it in the 91% 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 2852 receive an average of 1.18 office actions before reaching final disposition (in the 8% percentile). The median prosecution time is 20 months (in the 94% 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.