USPTO Art Unit 3746 Prosecution Statistics

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19329798FLUID END WITH THREADED DYNAMIC SECTIONSeptember 2025February 2026Allow500NoNo
19321141Thermal Energy Storage System for Use with a Low Temperature Heat Source and a Thermal Power Cycle SystemSeptember 2025December 2025Allow300YesNo
19305842THERMOMECHANICALLY ACTUATED PV CLEANING SYSTEMAugust 2025February 2026Allow600YesNo
19299032FLUID SPRAYER WITH COVERED BATTERYAugust 2025March 2026Allow700NoNo
19293191Hybrid Drive Systems for Well Stimulation OperationsAugust 2025December 2025Allow400NoNo
19291201FLUID END WITH THREADED DYNAMIC SECTIONAugust 2025March 2026Allow710NoNo
19288302AIR OUTLET DEVICE AND FANAugust 2025October 2025Allow300NoNo
19286790FLUID ROUTING PLUGJuly 2025January 2026Allow600NoNo
19276301PORTABLE FAN WITH PREDICTABLE BATTERY LIFE AND METHOD FOR PREDICTING BATTERY LIFE THEREOFJuly 2025October 2025Allow300YesNo
19140540FLOAT BOX WITH VALVEJune 2025January 2026Allow700NoNo
19236104VEHICLEJune 2025March 2026Allow900NoNo
19136060HOT AIR ENGINEJune 2025February 2026Allow900NoNo
19213707SPLIT-TYPE PLUNGER PUMP AND SPLIT-TYPE PLUNGER PUMP COMPONENTMay 2025March 2026Allow911YesNo
19213760FLUID ROUTING PLUGMay 2025September 2025Allow400YesNo
19210629REVERSE FLOW GAS TURBINE ENGINE HAVING ELECTRIC MACHINEMay 2025October 2025Allow510NoNo
19208674SOLAR ENERGY SYSTEM WITH RANKINE CYCLEMay 2025July 2025Allow210NoNo
19208665RANKINE ENERGY SYSTEM BASED ON SOLAR POWERMay 2025July 2025Allow210NoNo
19205460RUBBER COMPOUND REINFORCED WITH ALTERNATIVE FIBERSMay 2025February 2026Allow900YesNo
19204018PROCESS FOR GENERATING CLEAN POWER AND HYDROGENMay 2025August 2025Allow310NoNo
19127830AN AIR PUMP WITH AN ELECTROMECHANICAL SWITCH ASSEMBLYMay 2025January 2026Allow800NoNo
19127827AN AIR PUMPMay 2025December 2025Allow700NoNo
19127834AN AIR PUMP WITH A CHANNEL SWITCH ASSEMBLYMay 2025November 2025Allow600YesNo
19201432EXHAUST PURIFICATION APPARATUSMay 2025February 2026Allow900NoNo
19201398Organic Rankine Cycle Decompression Heat EngineMay 2025October 2025Allow510YesNo
18843956Valve Pump UnitMay 2025February 2026Allow1700NoNo
18849115CO-ROTATING SCROLL COMPRESSORMay 2025February 2026Allow1700YesNo
19195010FLUID ENDApril 2025January 2026Allow820YesNo
19194396FANApril 2025November 2025Allow610NoNo
19124943CO-ROTATING SCROLL COMPRESSORApril 2025March 2026Allow1000NoNo
19190856SOLAR POWER ENERGY SYSTEM WITH RANKINE ENGINEApril 2025July 2025Allow210NoNo
19188535WAIST FANApril 2025December 2025Allow811NoNo
19189085THERMAL ENERGY STORAGE SYSTEM FOR SIMPLE AND COMBINED CYCLE POWER GENERATIONApril 2025July 2025Allow300YesNo
19188205FLUID ROUTING PLUGApril 2025June 2025Allow100NoNo
19185573METHOD FOR GENERATING ELECTRICITY WITH SOLAR HEAT PIPE ABSORBERApril 2025July 2025Allow310NoNo
19184093STEAM POWER CYCLE THERMOELECTRIC DECOUPLING SYSTEM, AND CONTROL METHOD, DEVICE, MEDIUM, AND PRODUCT THEREOFApril 2025June 2025Allow200NoNo
19181780Alternating Pump GapsApril 2025March 2026Allow1100NoNo
19175293ELECTRIC COMPRESSORApril 2025March 2026Allow1100NoNo
19173271COMPRESSION IN A GAS TURBINE ENGINEApril 2025March 2026Allow1100NoNo
19118828Improved Sliding Vane Rotary PumpApril 2025December 2025Allow900NoNo
19171727SYSTEMS AND METHODS FOR DETECTING DEGRADATION OF CATALYST MEMBERS OF AN AFTERTREATMENT SYSTEMApril 2025February 2026Allow1000NoNo
19169146EXPANDABLE, INNER LINER PUMPApril 2025March 2026Allow1100YesNo
19098210OFFSHORE STEAM TURBINE GENERATOR UNIT AND INSTALLING METHODApril 2025February 2026Allow1000YesNo
19117831SYSTEMS, DEVICES, AND/OR METHODS FOR MANAGING WATERApril 2025January 2026Allow900NoNo
19117504TREATMENT OF NON-AXISYMMETRIC CASING WITH CONTROLLED OPENINGApril 2025November 2025Allow700NoNo
19095873EXHAUST GAS TREATMENT EQUIPMENTMarch 2025February 2026Allow1100YesNo
19089721SCROLL COMPRESSOR AND REFRIGERATION APPARATUS INCLUDING THE SAMEMarch 2025March 2026Allow1100NoNo
19089884EXHAUST AFTERTREATMENT UNITMarch 2025February 2026Allow1000NoNo
19087588EXHAUST PURIFICATION APPARATUSMarch 2025March 2026Allow1200NoNo
19086484CAMPING FAN TELESCOPIC LAMPMarch 2025April 2025Allow100NoNo
19085202SELF-CONTAINED COMPRESSION BRAKE CONTROL MODULE FOR INTEGRATED ROCKER ARM ENGINE BRAKING AND METHODSMarch 2025March 2026Allow1100YesNo
19083159FANATIC PARTICIPATION DEVICEMarch 2025May 2025Allow200NoNo
19080302ELECTRIC LIQUID PUMPMarch 2025December 2025Allow900NoNo
19078772FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGEMarch 2025January 2026Allow1020NoNo
19077200FLUID ENDMarch 2025April 2025Allow100YesNo
19076280VACUUM EJECTOR PUMPMarch 2025November 2025Allow800NoNo
19075960DYNAMIC FLUX WEAKENING FOR A SINGLE PHASE LINEAR COMPRESSORMarch 2025October 2025Allow700NoNo
19075369COMPRESSOR ASSEMBLIES INCLUDING LOWER COVERS HAVING MOUNTING FEET SKIRTS CONFIGURED FOR INCREASING MOUNTING FEET STIFFNESS AND RESISTANCE TO CRACK FORMATIONMarch 2025March 2026Allow1210NoNo
19073897REINFORCED EXHAUST TREATMENT ARTICLE, EXHAUST LINE, AND METHODSMarch 2025January 2026Allow1100NoNo
19072093FLUID DELIVERYMarch 2025October 2025Allow800NoNo
19071580Strain-Actuated Microfluidic Pump SensorMarch 2025December 2025Allow1010NoNo
19068496METHOD AND CONTROL UNIT FOR OPERATING A COMPRESSORMarch 2025December 2025Allow1000NoNo
19068638SCROLL COMPRESSORMarch 2025November 2025Allow800NoNo
19069120PISTON PUMP AND METHOD OF MANUFACTURING THE SAMEMarch 2025July 2025Allow410NoNo
19066697TURBINE ENGINE INCLUDING A STEAM SYSTEMFebruary 2025May 2025Allow300YesNo
19062082FREQUENCY MODULATION AUXILIARY METHOD AND DEVICE FOR THERMAL POWER PLANT BASED ON DUAL ELECTRIC ENERGY CONVERTERFebruary 2025April 2025Allow200YesNo
19062423Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing SameFebruary 2025February 2026Allow1200NoNo
19063108COMMONLY MANUFACTURED ROTOR BLADEFebruary 2025December 2025Allow900NoNo
19061564LUBRICATION SYSTEM WITH PUMP FEED FROM DE-AERATORFebruary 2025March 2026Allow1200YesNo
19061148AIR PUMP WITH INTERNAL TOOL STORAGEFebruary 2025October 2025Allow700NoNo
19060776WATER PUMPS FOR LANDSCAPE WATERFebruary 2025March 2026Allow1210YesNo
19105793SYSTEMS AND METHODS FOR CONTROLLING TAILPIPE EXHAUST EMISSIONSFebruary 2025March 2026Allow1300YesNo
19058442FLUID ENDFebruary 2025November 2025Allow920NoNo
19056805MULTIFUNCTIONAL VACUUM PUMPFebruary 2025December 2025Allow900NoNo
19057646WATER PUMPFebruary 2025May 2025Allow300NoNo
19054410Thermo-Magnetic MotorFebruary 2025November 2025Allow910YesNo
19054464Flow Distributor Assembly, Valve Box and Plunger PumpFebruary 2025February 2026Allow1210YesNo
19051273VARIABLE DISPLACEMENT HYDRAULIC PUMP SYSTEM WITH OVER-TEMPERATURE PREVENTIONFebruary 2025January 2026Allow1100NoNo
19050387SCROLL COMPRESSORFebruary 2025February 2026Allow1200NoNo
19049278EXHAUST PURIFICATION DEVICEFebruary 2025December 2025Allow1000NoNo
19102299TANGENTIAL INTERNAL COMBUSTION ENGINEFebruary 2025February 2026Allow1200NoNo
19046707MODULAR POWER ENDFebruary 2025October 2025Allow920NoNo
19047318HYDROGEN FUELED ELECTRIC POWER PLANT WITH THERMAL ENERGY STORAGEFebruary 2025January 2026Allow1100YesNo
19037428REAR HEAD WITH VORTEX OIL SEPARATOR FOR COMPRESSOR AND ELECTRIC COMPRESSOR WITH VORTEX OIL SEPARATORJanuary 2025December 2025Allow1100YesNo
19037256GAS SUPPLY PUMP FOR SHIP DUAL FUEL ENGINEJanuary 2025October 2025Allow800NoNo
19036973POWER GENERATION SYSTEM AND METHOD BASED ON COMPRESSED AIR ENERGY STORAGE TECHNOLOGY THROUGH SOLAR AUXILIARY HOT HUMID AIRJanuary 2025December 2025Allow1000NoNo
19036483FLUID ROUTING PLUGJanuary 2025July 2025Allow500YesNo
19036900AMBIENT TEMPERATURE THERMAL ADAPTER FOR SUPERCRITICAL CARBON DIOXIDE POWER CYCLEJanuary 2025March 2026Allow1410NoNo
18997873SNAP-ON GETTER PUMP ASSEMBLY AND ITS USEJanuary 2025December 2025Allow1010YesNo
19032539SUPPORT STRUCTURE OF ELECTRIC COMPRESSORJanuary 2025March 2026Allow1400NoNo
19032433IN-LINE PUMPING APPARATUS, SYSTEM, AND METHOD FOR INCREASING LIQUID FLOW IN GRAVITY NETWORKSJanuary 2025October 2025Allow800NoNo
19026372ELECTRIC TURBOCHARGER WITH DIFFUSER PLATEJanuary 2025February 2026Allow1310YesNo
19030109FLUID COMPRESSION APPARATUS AND METHODJanuary 2025October 2025Allow900NoNo
19028278PORTABLE FAN AND FAN ASSEMBLYJanuary 2025June 2025Allow510YesNo
19028879FLUID COMPRESSION APPARATUS AND METHODJanuary 2025August 2025Allow710NoNo
19029489Combined Power Generation using Geothermal and Solar EnergyJanuary 2025February 2026Allow1310NoNo
18996138INSTALLATION FOR PRODUCING ELECTRICITY OR MECHANICAL POWER, COMPRISING A COMBINED CYCLE GAS TURBINE, AND CO2 CAPTURE AND WATER ELECTROLYSIS UNITSJanuary 2025January 2026Allow1200NoNo
19026347Air Pump Device with Accessories Storage FunctionJanuary 2025July 2025Allow620YesNo
19025492THERMAL ENERGY STORAGE SYSTEM COUPLED WITH STEAM CRACKING SYSTEMJanuary 2025August 2025Allow710NoNo
19023674MAGNETIC FLUID MICROPUMPJanuary 2025January 2026Allow1210NoNo
19025071COMBINED CYCLE POWER GENERATION FACILITYJanuary 2025February 2026Allow1310NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3746.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
343
Examiner Affirmed
218
(63.6%)
Examiner Reversed
125
(36.4%)
Reversal Percentile
68.4%
Higher than average

What This Means

With a 36.4% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
1047
Allowed After Appeal Filing
353
(33.7%)
Not Allowed After Appeal Filing
694
(66.3%)
Filing Benefit Percentile
57.2%
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, 33.7% 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 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 3746 - Prosecution Statistics Summary

Executive Summary

Art Unit 3746 is part of Group 3740 in Technology Center 3700. This art unit has examined 30,121 patent applications in our dataset, with an overall allowance rate of 76.3%. Applications typically reach final disposition in approximately 29 months.

Comparative Analysis

Art Unit 3746's allowance rate of 76.3% places it in the 49% 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 3746 receive an average of 1.66 office actions before reaching final disposition (in the 31% percentile). The median prosecution time is 29 months (in the 63% 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.