USPTO Art Unit 3644 Prosecution Statistics

Art Unit Information

Art Unit: 3644
Group: 3640
Tech Center: 3600
Total Cases: 19,528
Last Active: March 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19083969Cat ToyMarch 2025May 2025Allow200YesNo
19072360SYSETEMS, METHODS, AND APPARATUSES FOR TETHER-BASED REACTION CONTROL AND ORBITAL ENERGY REDUCTIONMarch 2025April 2025Allow100YesNo
19065443APPARATUS AND METHOD OF CREATING WETLANDS IN HOT ARID ENVIRONMENTSFebruary 2025April 2025Allow200NoNo
19059055BAIT CHASING SYSTEMFebruary 2025April 2025Allow200NoNo
19029571Cat Litter Box Convenient for Taking out and locking Cat Litter BinJanuary 2025April 2025Allow300NoNo
19012270PET GARMENTJanuary 2025May 2025Allow410NoNo
19009168ANIMAL HEALTH AND SAFETY SYSTEM AND METHODJanuary 2025May 2025Allow400NoNo
19008797PET ELIZABETHAN COLLARJanuary 2025March 2025Allow200NoNo
19000589ELECTRONIC FENCE BASED ON POSITIONING ASSEMBLYDecember 2024February 2025Allow200NoNo
18958350MULTI-PURPOSE FEEDER WITH TIMED ACCESS CONTROL SYSTEMNovember 2024March 2025Allow410NoNo
18947832FLUID-FILLED THRUST LINK APPARATUS AND ASSOCIATED METHODNovember 2024February 2025Allow300NoNo
18945071NAVIGATING AIRCRAFT IN A JETSTREAMNovember 2024February 2025Allow401NoNo
18934283Cat Litter BoxNovember 2024December 2024Allow200NoNo
18853734SPREADING DEVICEOctober 2024June 2025Allow900NoNo
18905098ANIMATED FISHING JIG APPARATUS AND SYSTEMOctober 2024June 2025Allow900NoNo
18900833REMOTE CONTROLLER FOR PREVENTING ACCIDENTAL TRIGGERING AND BARK CONTROL COMPONENTSeptember 2024January 2025Allow300NoNo
18897969Vertical Take-Off and Landing AircraftSeptember 2024June 2025Allow900NoNo
18895895Semi-automatic Feces Shoveling Cat Litter BoxSeptember 2024February 2025Allow510NoNo
18895503Hummingbird feederSeptember 2024March 2025Allow510NoNo
18889815PRECISE LIGHT SUPPLEMENT DEVICE FOR KIWIFRUITSSeptember 2024June 2025Allow900NoNo
18888795DYNAMIC PEST CONTROL FOAM GENERATION AND INJECTIONSeptember 2024June 2025Allow900NoNo
18829270INTERCEPTING NET BASED ON REVERSING CURRENT MOTION AT RIVER BOTTOMSeptember 2024June 2025Allow900NoNo
18844053MULTIPURPOSE WASHING MACHINE FOR COMPANION ANIMALSSeptember 2024June 2025Allow900NoNo
18823576Fishing LureSeptember 2024May 2025Allow900NoNo
18822303INTELLIGENT FISHING REELSeptember 2024November 2024Allow200NoNo
18814691REEL SEAT AND FISHING ROD INCLUDING SAMEAugust 2024May 2025Allow900NoNo
18807140PET TOILETAugust 2024October 2024Allow200NoNo
18800462ANIMAL DRINKING VALVEAugust 2024May 2025Allow900YesNo
18799848DETACHABLE BIRD FEEDERAugust 2024February 2025Allow710NoNo
18798796ARTIFICIAL BAIT FOR FISHINGAugust 2024May 2025Allow900NoNo
18798616MULTI-SENSORY ENRICHMENT WITH SELF-ADMINISTERING HEALTH PRODUCT DELIVERY SYSTEMAugust 2024January 2025Allow500NoNo
18787440SYSTEMS AND METHODS FOR DETERMINING AND/OR CONTROLLING MOTOR THRUST AND ENGINE THRUST IN A PARALLEL HYBRID AIRCRAFTJuly 2024April 2025Allow800NoNo
18785369APPARATUS FOR MOVING OBJECT RELATIVE TO AIRCRAFT FRAMEJuly 2024June 2025Allow1130YesNo
18780169BIRD OR BAT DETECTION AND IDENTIFICATION FOR WIND TURBINE RISK MITIGATIONJuly 2024May 2025Allow1000NoNo
18778580Notched Hydroplane Surface for Aircraft FloatsJuly 2024May 2025Allow900YesNo
18778500Swivel Nose Caster for Aircraft FloatsJuly 2024April 2025Allow900NoNo
18773868Engine pylon rear secondary structureJuly 2024May 2025Allow1010NoNo
18766055SOLAR POWERED STRATOSPHERIC GLIDERJuly 2024June 2025Allow1100NoNo
18726973PARACHUTE, SAFETY DEVICE, AND FLIGHT VEHICLE PROVIDED WITH SAFETY DEVICEJuly 2024March 2025Allow900YesNo
18759481MODULAR TREATMENT DEVICEJune 2024February 2025Allow810NoNo
18749624Rotor Assembly Deployment Mechanism And Aircraft Using SameJune 2024April 2025Allow1000NoNo
18745679DOG TRAINING DEVICEJune 2024April 2025Allow1000NoNo
18743152Protective collar for petJune 2024November 2024Allow510NoNo
18740760LURE WITH REFLECTORSJune 2024December 2024Allow711YesNo
18740044PET DENTAL DEVICES AND SYSTEMSJune 2024October 2024Allow400NoNo
18737270FISHING DEVICE WITH HOOK KEEPING FEATURESJune 2024June 2025Allow1200NoNo
18736622ANIMAL COLLAR THAT IS PERSONALIZABLE WITH CHARMSJune 2024August 2024Allow310YesNo
18736231PULSED AEROPONIC AGRICULTURAL GROWTH SYSTEMS AND METHODSJune 2024May 2025Allow1121YesNo
18679702FIXED WING ROTORCRAFTMay 2024June 2025Allow1200YesNo
18679913INSECT ELIMINATING DEVICE WITH SIMULATED FLAME AND VACUUM SUCTION ELEMENTMay 2024June 2025Allow1200NoNo
18679412FLY BOX WITH INTEGRATED TIPPET CUTTERMay 2024May 2025Allow1200NoNo
18714841HANDHELD VACUUM ASSEMBLY FOR THE CAPTURE AND COLLECTION OF INSECTSMay 2024October 2024Allow400NoNo
18679081FISHING ROD WITH VIBRATION AMPLIFICATION CHAMBERMay 2024May 2025Allow1200NoNo
18676594Modular Pet ToyMay 2024December 2024Allow710NoNo
18672018METHOD FOR OPTIMIZING GROWTH OF CRUSTACEAN SETMay 2024May 2025Allow1100NoNo
18670994FISHING LUREMay 2024July 2025Allow1311YesNo
18669802AIRPLANE PASSENGER TRANSPORT SYSTEMMay 2024June 2025Allow1210NoNo
18667566FAULT-TOLERANT VTOL AIRCRAFT WITH REDUNDANT CONTROL SURFACES AND ACTUATORSMay 2024March 2025Allow1010NoNo
18663184Distributed Propulsion System for Vertical Take Off and Landing Closed Wing AircraftMay 2024March 2025Allow1010NoNo
18655389MULTI-STAGE EVACUATION SYSTEMS AND METHODS FOR AIRCRAFTMay 2024April 2025Allow1210NoNo
18654065AIR DOME SMART FARMMay 2024August 2024Allow300NoNo
18650428MULTI-PURPOSE FEEDER WITH TIMED ACCESS CONTROLApril 2024September 2024Allow511YesNo
18650650DISTRIBUTED PROPULSION SYSTEMApril 2024April 2025Allow1200NoNo
18648730ANIMAL LITTER BOX INCORPORATING A CLEANING DEVICEApril 2024May 2025Allow1300NoNo
18647998CIRCULAR GRAZING SYSTEM AND METHODApril 2024June 2025Abandon1410NoNo
18645425METHOD FOR RESTORING WATERBIRD HABITATS BASED ON ECOLOGICAL LEVERAGE THEORYApril 2024June 2025Allow1410YesNo
18644352AUXILIARY PROPULSION APPARATUS FOR AIR VEHICLEApril 2024December 2024Allow800YesNo
18643483INTERNAL FIXED STRUCTURE FOR AN AIRCRAFT NACELLEApril 2024May 2025Allow1300NoNo
18640995Aquaponic System and EnclosureApril 2024May 2025Allow1300NoNo
18639822PROPULSION SYSTEMS AND VEHICLES USING THE SAMEApril 2024September 2024Allow501NoNo
18635450PIVOTING LANDING GEAR PROVIDED WITH AN IMMOBILIZATION SYSTEMApril 2024June 2025Allow1400YesNo
18700901SYSTEM FOR DEPLOYING A SEPARATION CURTAIN TO CREATE A RESTING SPACE INSIDE AN AIRCRAFT CABINApril 2024September 2024Allow500NoNo
18630028Collection System and MethodApril 2024October 2024Allow610NoNo
18630608UNMANNED AERIAL VEHICLE AND DELIVERY SYSTEMApril 2024March 2025Allow1110NoNo
18630462Fishing Line ConnectorApril 2024May 2024Allow100NoNo
18629998EGG INCUBATOR BASE AND EGG INCUBATORApril 2024September 2024Allow600NoNo
18627872SCENT BULLET FISHING TACKLE SCENT AND BAIT RELEASE SYSTEMApril 2024May 2025Allow1400NoNo
18626575ENGINE PYLON FOR FASTENING AN AIRCRAFT ENGINEApril 2024March 2025Allow1100NoNo
18626142AIRCRAFT PASSENGER SEATING ARRANGEMENT AND MOBILE ELEMENT FOR AIRCRAFT SEATSApril 2024July 2025Allow1510NoNo
18621354LURE WITH REFLECTORSMarch 2024April 2025Allow1330YesNo
18622558HAND HELD SNAKE SNAREMarch 2024November 2024Allow820YesNo
18621436REMOVABLE CONTAINER FOR LIVESTOCK TAGSMarch 2024September 2024Allow510NoNo
18619357FISHING ROD RETAINING MECHANISMMarch 2024April 2025Allow1310NoNo
18618261AIRCRAFT COMPRISING A DIHYDROGEN TRANSPORT LINE, A CHANNEL FOR EMBEDDING SAID TRANSPORT LINE AND A SYSTEM FOR EVACUATING AIR AND WATER PRESENT IN SAID EMBEDDED CHANNELMarch 2024May 2025Allow1410NoNo
18615247ROTARY ACTUATORMarch 2024May 2025Allow1400YesNo
18612544SELF-RIGHTING STICK-TYPE OBJECT HOLDER FOR PETSMarch 2024March 2025Allow1200NoNo
18609578SELECTIVE BAIT DELIVERY APPARATUS AND METHOD FOR ANIMAL CONTROLMarch 2024March 2025Allow1200NoNo
18607944Artificial Bait DecoyMarch 2024March 2025Allow1200NoNo
18607433Anti-Aging Therapy for Humans and Other MammalsMarch 2024November 2024Allow800NoNo
18605887PEST RESISTANT BIRDFEEDERMarch 2024April 2025Abandon1310NoNo
18602091CRYOGENIC FUELED AIRCRAFTMarch 2024February 2025Allow1110NoNo
18602498AIRCRAFT PROPULSIVE ASSEMBLY COMPRISING A NACELLE WITH A T-SHAPED FRAMEMarch 2024January 2025Allow1000NoNo
18599497AIRCRAFT CENTRAL WING BOX COMPRISING BEAMS PRESSED RESPECTIVELY AGAINST OUTER FACES OF THE TOP AND BOTTOM PANELS OF SAID BOX, EACH PROVIDED WITH AT LEAST ONE ATTACHMENT PASSING THROUGH THE TOP OR BOTTOM PANELMarch 2024June 2025Allow1510NoNo
18600165Portable Panel Assembly Corral with Shiftable Rack to Support PanelsMarch 2024June 2025Allow1510NoNo
18690117PET EXCREMENT COLLECTING DEVICE CAPABLE OF CLOSING EXCREMENT COLLECTING BAGMarch 2024March 2025Allow1200NoNo
18594893Pet Restraint and Behavior-Correcting HarnessMarch 2024March 2025Allow1200NoNo
18687819CAT LITTER BOXFebruary 2024June 2024Allow410YesNo
18591256HARNESS SADDLE FOR HORSESFebruary 2024March 2025Allow1300NoNo
18588489AIRCRAFT COMPONENT SUPPORT ARRANGEMENT, HIGH-LIFT SYSTEM, AIRCRAFT WING AND AIRCRAFTFebruary 2024May 2025Allow1510YesNo
18585775RECEIVER OF INTERACTIVE DOG TRAINING DEVICE AND INTERACTIVE DOG TRAINING DEVICEFebruary 2024May 2024Allow300NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3644.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
228
Examiner Affirmed
129
(56.6%)
Examiner Reversed
99
(43.4%)
Reversal Percentile
87.5%
Higher than average

What This Means

With a 43.4% 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
695
Allowed After Appeal Filing
268
(38.6%)
Not Allowed After Appeal Filing
427
(61.4%)
Filing Benefit Percentile
79.5%
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, 38.6% 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 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 is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Art Unit 3644 - Prosecution Statistics Summary

Executive Summary

Art Unit 3644 is part of Group 3640 in Technology Center 3600. This art unit has examined 19,528 patent applications in our dataset, with an overall allowance rate of 76.1%. Applications typically reach final disposition in approximately 25 months.

Comparative Analysis

Art Unit 3644's allowance rate of 76.1% places it in the 44% percentile among all USPTO art units. This art unit has a below-average allowance rate compared to other art units.

Prosecution Patterns

Applications in Art Unit 3644 receive an average of 1.28 office actions before reaching final disposition (in the 11% percentile). The median prosecution time is 25 months (in the 75% 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 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.