USPTO Art Unit 3615 Prosecution Statistics

Art Unit Information

Art Unit: 3615
Group: 3610
Tech Center: 3600
Total Cases: 4,944
Last Active: October 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19350306Battery Powered LocomotiveOctober 2025December 2025Allow310NoNo
19292619PAYLOAD RE-POSITIONING SYSTEM FOR A MARITIME VEHICLEAugust 2025September 2025Allow200NoNo
19281752CART CAPABLE OF BEING LATERALLY OPENEDJuly 2025December 2025Allow410NoNo
19273520ADJUSTABLE TETHER LINE SYSTEMS AND SECUREMENT METHODSJuly 2025October 2025Allow300NoNo
19263403HIGH-ENERGY-EFFICIENCY LITHIUM BATTERY MONORAIL HOIST LOCOMOTIVE AND BATTERY MANAGEMENT SYSTEM THEREOFJuly 2025August 2025Allow100NoNo
19261972Inflatable Paddle BoardJuly 2025October 2025Allow310YesNo
19257446Folding Pontoon Raft FrameJuly 2025August 2025Allow200NoNo
19245737RAILROAD SPIKE STABILIZER FOR RAILROAD AND CONSTRUCTION APPLICATIONSJune 2025August 2025Allow200NoNo
19245486Battery Powered LocomotiveJune 2025October 2025Allow420NoNo
19241308RECONFIGURABLE UNDERWATER VEHICLE CAPABLE OF FAR-DISTANCE CRUISING AND UNDERWATER INTERACTIVE OPERATIONJune 2025August 2025Allow200NoNo
19227188BOAT COVER SUPPORT APPARATUSJune 2025August 2025Allow300YesNo
19221704BRAKE SYSTEM FOR A WHEELED DEVICEMay 2025July 2025Allow210NoNo
19212108Commercial Electric Vehicle Drive UnitMay 2025October 2025Allow510YesNo
19203204Inflatable Paddle Board and Thermal Bonding Method ThereofMay 2025July 2025Allow310NoNo
19203086TRACK ASSEMBLY FOR A STORAGE SYSTEMMay 2025November 2025Allow710NoNo
19196281DOCKING DEVICEMay 2025August 2025Allow410NoNo
19192889VARIABLE BUOYANCY PLATFORM FOR AQUACULTURE FARMING AND METHOD OF OPERATING THE SAMEApril 2025January 2026Allow810NoNo
19190850RELEASE DEVICE FOR POLAR PROFILE OBSERVATION SYSTEMApril 2025July 2025Allow200NoNo
19188008TRIM DEVICE AND CONTROL METHOD THEREOF, WATER PROPELLER, WATER-MOBILE DEVICE, AND MEDIUMApril 2025September 2025Allow510NoNo
19188285Battery Powered LocomotiveApril 2025June 2025Allow210NoNo
19177557VEHICLE TRACTION RECOVERY SYSTEM WITH DYNAMIC SELF- FEEDING MECHANISMApril 2025June 2025Allow310YesNo
19093233FLOATING PHOTOVOLTAIC PLATFORM SYSTEM FOR IMPROVING OCEAN ADAPTABILITYMarch 2025June 2025Allow200NoNo
19091318WATER FLOATING DEVICEMarch 2025August 2025Allow510NoNo
19091751RETRACTABLE ARM HAVING A FLEXIBLE CONDUCTOR FOR ELECTRICAL CONNECTIVITYMarch 2025November 2025Allow710YesNo
19090326Inflatable Paddle Board and Manufacturing Method ThereofMarch 2025September 2025Allow510YesNo
19088735STEP APPARATUSES FOR BOATSMarch 2025December 2025Allow910NoNo
19113122METHOD FOR MONITORING RAILWAY POINTS AND POINTS MACHINEMarch 2025June 2025Allow300NoNo
19083544DEVICE AND CONSTRUCTION METHOD FOR AUTOMATICALLY PLACING HIGH-SPEED RAILWAY STEEL RAIL LAYING TIE PLATEMarch 2025July 2025Allow410NoNo
19083792Gyroscopic Boat Roll Stabilizer with Bearing CoolingMarch 2025June 2025Allow210NoNo
19083828Gyroscopic Boat Roll Stabilizer with Bearing CoolingMarch 2025June 2025Allow210NoNo
19083190ENVIRONMENTAL DATA COLLECTION OCEAN BUOY AND HURRICANE EYE TRACKINGMarch 2025June 2025Allow300NoNo
19080888FLOATING BOAT LIFTMarch 2025April 2025Allow100NoNo
19078507BOAT SEAT WITH INTEGRATED ROD AND BEVERAGE HOLDERSMarch 2025April 2025Allow100NoNo
19078080MARINE VESSEL VENTILATION SYSTEMMarch 2025July 2025Allow510NoNo
19070641VARIABLE BALLAST PROPULSION SHIPPING VESSEL, SYSTEMS AND METHODSMarch 2025June 2025Allow310NoNo
19068780REVERSIBLE CAMBER WINGSAILMarch 2025July 2025Allow510YesNo
19067717Switch Point Roller AssemblyFebruary 2025May 2025Allow310NoNo
19063385CATCHING DEVICE FOR SURFACE RESCUE BASED ON AIRCRAFT PLATFORM AND SURFACE RESCUE METHODFebruary 2025April 2025Allow200NoNo
19062137INFLATABLE RAFTFebruary 2025June 2025Allow410NoNo
19049919FRONT HUB WITH TIRE BALANCER FOR SPRINT CARSFebruary 2025September 2025Allow700NoNo
19047729VEHICLE TRACK SYSTEM AND ASSEMBLY FOR OFF-ROAD CONDITIONSFebruary 2025October 2025Allow820YesNo
19035525SYSTEMS AND METHODS FOR RETRIEVING AND DEPLOYING OBJECTS ON A BODY OF WATERJanuary 2025November 2025Allow1020NoNo
19034313FLOATING BODY CAPABLE OF MOVING ON WATERJanuary 2025May 2025Allow310NoNo
19032636Paddle PoleJanuary 2025July 2025Allow600NoNo
18997108Factory for Producing an Elongated Tension Member, and Method for Constructing Such a FactoryJanuary 2025September 2025Allow800NoNo
19031747POWER AND FRESHWATER SUPPLY SYSTEM FOR OCEAN INTEGRATED PLATFORMJanuary 2025March 2025Allow200NoNo
19030633PROPULSION UNIT FOR A WATERBORNE VESSELJanuary 2025July 2025Allow510NoNo
19026984INTEGRATED INSTALLATION STRUCTURE FOR MARINE APPARATUS, STORAGE CONTAINER AND MANUFACTURING METHODJanuary 2025May 2025Allow410NoNo
19029048Inflatable Oar Frame For A WatercraftJanuary 2025April 2025Allow311NoNo
19028855WATERCRAFT WITH TOWER STORAGEJanuary 2025May 2025Allow400NoNo
19016768MODULAR KEELJanuary 2025August 2025Allow710YesNo
19011706DUAL SOURCE BATTERY LOCOMOTIVE & DUAL SOURCE BATTERY TENDERJanuary 2025April 2025Allow310NoNo
19007120RESILIENT WHEELSDecember 2024October 2025Allow1010NoNo
19007421WIND-POWERED WATER-AIR INTERFACE VEHICLE SUITABLE FOR CONCEALED NAVIGATIONDecember 2024November 2025Allow1020NoNo
19005270VARIABLE BALLAST PROPULSION SHIPPING VESSEL, SYSTEMS AND METHODSDecember 2024February 2025Allow100NoNo
18999861TOOL-LESS MATING BULKHEAD CONNECTORDecember 2024June 2025Allow610NoNo
18986872Marine Fuel Cell-Based Integrated Heat, Electricity, And Cooling Supply SystemDecember 2024February 2025Allow200NoNo
18984421INTELLIGENT CAT LITTER BOXDecember 2024May 2025Allow510NoNo
18874416FLOATING PLATFORM, ANCHOR CONTAINER STRUCTURE, FLOATING STRUCTURE, AND INSTALLATION METHOD FOR INSTALLING FLOATING PLATFORM ON WATERDecember 2024March 2025Allow300YesNo
18975141HUBCAP CENTRAL LOCKING MECHANISMDecember 2024July 2025Allow710NoNo
18961773SYSTEM FOR ELECTRICALLY POWERED AERIAL PLATFORMS TO DRAW POWER FROM GROUND-BASED STATIONSNovember 2024February 2025Allow310NoNo
18961241EXPANDABLE DRIFT SOCK SYSTEMNovember 2024January 2025Allow200NoNo
18958035CONTROLLABLE SINKING AND FLOATING SWIMMING POOL ROBOT AND SINKING AND FLOATING CONTROL METHOD FOR SWIMMING POOL ROBOTNovember 2024April 2025Allow420NoNo
18958052CONTROLLABLE SINKING AND FLOATING SWIMMING POOL ROBOT AND SINKING AND FLOATING CONTROL METHOD FOR SWIMMING POOL ROBOTNovember 2024April 2025Allow520NoNo
18867612MOUNTING ARRANGEMENT OF SELF-SUPPORTING SPOKE STRUCTURE FOR NON-PNEUMATIC TIRENovember 2024October 2025Allow1121YesNo
18954514Bionic cuttlefish-typed underwater detection robotNovember 2024January 2025Allow210YesNo
18949590SWIMMING AID TRAINING DEVICENovember 2024November 2025Allow1210NoNo
18949980INTERNAL INSPECTION ROBOTNovember 2024March 2025Allow400YesNo
18865217AQUATIC PROPULSION DEVICENovember 2024April 2025Allow610NoNo
18865264DETACHABLE AQUATIC PROPULSION DEVICENovember 2024April 2025Allow610NoNo
18863628INTEGRATED RAILWAY MOVEMENT DISPATCHING AND TRAIN OPERATION CONTROL METHOD, SYSTEM, AND APPLICATIONNovember 2024March 2025Allow510NoNo
18862659PIPE NAVIGATION APPARATUS WITH COLLAPSIBLE DRIVE ASSEMBLYNovember 2024March 2025Allow400NoNo
18930410OFFSHORE PLATFORM WITH VERTICAL COLUMN ASSEMBLYOctober 2024September 2025Abandon1010NoNo
18928256BICYCLE HUB AND SPOKE ARRANGEMENTOctober 2024February 2025Allow310NoNo
18924951Road to Rail Hybrid Vehicles Using Passive Junction and Transition SpansOctober 2024October 2025Allow1120NoNo
18919563Gas Supply Refueling FacilityOctober 2024February 2025Allow400NoNo
18915085Hydro CycleOctober 2024November 2024Allow100NoNo
18912823UNIDIRECTIONAL PROPULSION SYSTEMOctober 2024January 2025Allow310YesNo
18829189APPARATUSES, SYSTEMS, AND METHODS FOR MONITORING MOVING VEHICLESSeptember 2024May 2025Allow920NoNo
18822334CONTROLLABLE SINKING AND FLOATING SWIMMING POOL ROBOT AND SINKING AND FLOATING CONTROL METHOD FOR SWIMMING POOL ROBOTSeptember 2024December 2024Allow310NoNo
18819225THROWING PROTECTION APPARATUS FOR ADAPTIVE NAVIGATION SITUATION AWARENESS DEVICE BASED ON SHIP PILOTAGEAugust 2024October 2024Allow200NoNo
18818091STRUT ACTUATED BIMINI TOPAugust 2024March 2025Allow710YesNo
18811311JET PUMP PROPULSION SYSTEMAugust 2024November 2024Allow200YesNo
18810551VISUALIZED BIOLOGICAL TRAWL NET SYSTEM BASED ON SUBMERSIBLEAugust 2024October 2024Allow200NoNo
18806423Color Coordinated Anchor Rope Depth Measurement ApparatusAugust 2024July 2025Abandon1110YesNo
18803150SHIP HULL AIR LUBRICATION SYSTEM FOAM RELEASE APPARATUS AND METHOD OF USEAugust 2024October 2024Allow200YesNo
18799973ANTI-COLLISION BUFFERING DEVICE FOR HIGH-SPEED TRAINAugust 2024September 2024Allow100NoNo
18792787SYSTEM AND METHOD FOR REDUCING DRAG ON THE HULL OF A VESSELAugust 2024December 2024Allow500YesNo
18789905WATERCRAFT WITH ADJUSTABLE TOWER ASSEMBLYJuly 2024June 2025Allow1010NoNo
18788513AUXILIARY TRANSPORTATION SYSTEM FOR DIESEL ENGINE MONORAIL CRANE LOCOMOTIVE IN SLOPE AND CONTROL METHODJuly 2024September 2024Allow200NoNo
18834219VARIABLE BALLAST PROPULSION SHIPPING VESSEL, SYSTEMS AND METHODSJuly 2024November 2024Allow410NoNo
18786116Locking device for marine anti-collision ball traction ropeJuly 2024June 2025Abandon1110NoNo
18779353OCEAN WAVE AND TIDAL CURRENT ENERGY CONVERSION SYSTEMJuly 2024November 2024Allow310NoNo
18776822SYSTEM AND METHOD FOR WATERPROOFING RAILWAY STRUCTURESJuly 2024January 2025Allow610YesNo
18776105UNDERWATER PROPULSION DEVICEJuly 2024April 2025Allow910NoNo
18773625Inflatable Paddle Board with Central Balancing FinJuly 2024March 2025Allow820NoNo
18729366IMPROVED HIGH-DENSITY POLYETHYLENE MARINE BOOMJuly 2024July 2025Allow1210NoNo
18729371FLANGED HDPE MARINE BOOM, MARINE BOOM SYSTEM, AND LUG PLATEJuly 2024July 2025Allow1210NoNo
18772600ASYMMETRIC CARGO BODY OF WATER NAVIGATION SYSTEM AND METHODJuly 2024February 2026Allow1910NoNo
18773285LOCKING ASSEMBLYJuly 2024August 2025Allow1310NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3615.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
49
Examiner Affirmed
19
(38.8%)
Examiner Reversed
30
(61.2%)
Reversal Percentile
96.7%
Higher than average

What This Means

With a 61.2% reversal rate, the PTAB has reversed the examiner's rejections more often than affirming them. 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
168
Allowed After Appeal Filing
84
(50.0%)
Not Allowed After Appeal Filing
84
(50.0%)
Filing Benefit Percentile
96.6%
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, 50.0% 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 3615 - Prosecution Statistics Summary

Executive Summary

Art Unit 3615 is part of Group 3610 in Technology Center 3600. This art unit has examined 4,944 patent applications in our dataset, with an overall allowance rate of 96.4%. Applications typically reach final disposition in approximately 23 months.

Comparative Analysis

Art Unit 3615's allowance rate of 96.4% places it in the 93% 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 3615 receive an average of 1.50 office actions before reaching final disposition (in the 22% percentile). The median prosecution time is 23 months (in the 89% 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.