USPTO Art Unit 1752 Prosecution Statistics

Art Unit Information

Art Unit: 1752
Group: 1750
Tech Center: 1700
Total Cases: 4,192
Last Active: January 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19037664DEVICE AND METHOD FOR EVALUATING HEAT CAPACITY OF TEST PLATFORM OF HYDROGEN FUEL CELL SYSTEMJanuary 2025April 2025Allow200NoNo
18873440HYDROGEN RECIRCULATION VENTURI ARRAY FOR OPTIMIZED H2 UTILIZATIONDecember 2024April 2025Allow400NoNo
18961421HYBRID MEMBRANE BASED ON UiO66 MODIFICATION, PREPARATION METHOD THEREOF, AND USE THEREOF IN FLOW BATTERYNovember 2024February 2025Allow300NoNo
18755427WATER INJECTION UNIT AND ENERGY STORAGE SYSTEM INCLUDING THE SAMEJune 2024February 2025Allow710NoNo
18746489METHOD, APPARATUS AND SYSTEM FOR CAPTURING CARBON USING FUEL CELLJune 2024June 2025Allow1110NoNo
18741407METHOD FOR MANUFACTURING NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERYJune 2024April 2025Allow1010NoNo
18737320ENERGY STORAGE SYSTEMJune 2024November 2024Allow610NoNo
18670124ALL SOLID STATE BATTERYMay 2024December 2024Allow700NoNo
18711258AMMONIA-BASED SOLID OXIDE FUEL CELL (SOFC) SYSTEM IN WHICH TEMPERATURE RISE USING HEATING ELEMENT IS APPLIED, AND OPERATION METHOD THEREFORMay 2024September 2024Allow410NoNo
18662836BATTERY CELL, BATTERY, POWER CONSUMPTION DEVICE, AND METHOD AND DEVICE FOR MANUFACTURING BATTERY CELLMay 2024August 2024Allow300NoNo
18654294BATTERY MODULEMay 2024March 2025Allow1010NoNo
18634049MOLTEN METAL BATTERY SYSTEM WITH SELF-PRIMING CELLSApril 2024May 2025Allow1300NoNo
18629320EMERGENCY ELECTRICAL ENERGYApril 2024February 2025Allow1012NoNo
18629202POSITIVE ELECTRODE MATERIAL, ELECTROCHEMICAL DEVICE CONTAINING SAME, AND ELECTRONIC DEVICEApril 2024March 2025Allow1110NoNo
18624781HYDROGEN SUPPLY SYSTEM, FUEL CELL SYSTEM, AND WORKING MACHINE INCLUDING HYDROGEN SUPPLY SYSTEM AND FUEL CELL SYSTEMApril 2024March 2025Allow1110YesNo
18696584INTERCONNECTOR FOR A STACK OF SOLID OXIDE CELLS OF THE SOEC/SOFC TYPE INCLUDING DIFFERENT ELEMENTS IN RELIEFMarch 2024August 2024Allow500NoNo
18609225ALL-SOLID-STATE SECONDARY BATTERYMarch 2024October 2024Allow710NoNo
18605709HIGH ENERGY DENSITY REDOX FLOW DEVICEMarch 2024February 2025Abandon1120NoNo
18600054INTEGRATED CIRCUIT FOR DIAGNOSTICSMarch 2024January 2025Allow1000NoNo
18596143CABLE, BATTERY AND ELECTRICITY CONSUMING DEVICEMarch 2024August 2024Allow510YesNo
18687843POLYMER, POLYMER ELECTROLYTE AND LITHIUM ION BATTERYFebruary 2024August 2024Allow510YesNo
18435387POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD AND USES THEREOFFebruary 2024October 2024Allow810NoNo
18424329MAGNETIC FLUX GENERATORJanuary 2024September 2024Allow810NoNo
18291437FUEL CELL SYSTEMJanuary 2024September 2024Allow810NoNo
18573160METHOD FOR THE CONTINUOUS TREATMENT OF MULTIPHASE FLUID FLOWSDecember 2023October 2024Allow1010NoNo
18537532EXTERNAL CLADDING FILM, ENERGY STORAGE DEVICE AND ELECTRICAL EQUIPMENTDecember 2023March 2024Allow300YesNo
18535590METHOD FOR CONTROLLING THERMAL MANAGEMENT SYSTEMS OF POWER PLANTDecember 2023January 2025Allow1410NoNo
18535826THERMAL STORAGE DEVICE FOR BATTERIESDecember 2023November 2024Allow1110NoNo
18569207NOVEL CONGLOMERATION GRAPHITE, SECONDARY BATTERY INCLUDING SAME AS ANODE ACTIVE MATERIAL, AND METHOD FOR PRODUCING CONGLOMERATION GRAPHITEDecember 2023July 2024Allow700YesNo
18522870PRODUCTION OF PETROCHEMICAL FEEDSTOCKS AND PRODUCTS USING A FUEL CELLNovember 2023November 2024Allow1210NoNo
18518749POSITIVE ELECTRODE ACTIVE MATERIAL COMPRISING SULFUR-CARBON COMPOSITE AND LITHIUM-SULFUR SECONDARY BATTERY COMPRISING THE SAMENovember 2023September 2024Allow1010YesNo
18505116METHOD FOR MANUFACTURING ANODE, AND SECONDARY BATTERY WITH IMPROVED RAPID CHARGING PERFORMANCE, HAVING ANODE ACCORDING THERETONovember 2023May 2025Allow1820YesNo
18487864VEHICLE BATTERY INTEGRATION SYSTEMS AND METHODSOctober 2023April 2025Allow1820YesNo
18555262METHOD FOR EXTRACTING LITHIUM FROM WASTE LITHIUM BATTERYOctober 2023April 2024Allow610NoNo
18377276METHOD, APPARATUS AND SYSTEM FOR CAPTURING CARBON USING FUEL CELLOctober 2023March 2024Allow510NoNo
18284775NITROGEN-DOPED HOLLOW COBALTOSIC OXIDE AND PREPARATION METHOD AND USE THEREOFSeptember 2023May 2024Allow810NoNo
18474362METHODS FOR PURIFYING AND RECYCLING LEAD FROM SPENT LEAD-ACID BATTERIESSeptember 2023December 2024Allow1511NoNo
18460463HEAT EXCHANGER ASSEMBLIES AND COOLING SYSTEMS FOR EVTOL AIRCRAFTSeptember 2023July 2024Allow1020YesNo
18233631HYDROGEN GENERATOR WITH CARBON CAPTURE FOR USE WITH A HYDROGEN FUEL CELLAugust 2023May 2024Allow911NoNo
18263425GRID ENERGY STORAGE SYSTEM FEATURING MASSIVELY PARALLEL-CONNECTED CELLSJuly 2023February 2025Allow1910NoNo
18352466MULTILAYERED FLEXIBLE BATTERY INTERCONNECTS AND METHODS OF FABRICATING THEREOFJuly 2023December 2023Allow500YesNo
18221391High Efficiency Hydrogen Fueled High Altitude Thermodynamic Fuel Cell System And Aircraft Using SameJuly 2023May 2024Allow1010YesNo
18221102Pouch Type Battery Cell and Method for Manufacturing the SameJuly 2023March 2024Allow811YesNo
18220690THREE-DIMENSIONAL BATTERY HAVING CURRENT-REDUCING DEVICES CORRESPONDING TO ELECTRODESJuly 2023July 2024Allow1300NoNo
18347994Enhancing Efficiencies Of Oxy-Combustion Power CyclesJuly 2023March 2024Allow810NoNo
18344861END COVER ASSEMBLY, BATTERY, ELECTRIC DEVICE, BATTERY CELL, AND MANUFACTURING METHOD THEREOFJune 2023June 2025Allow2410YesNo
18343834LIQUID COOLING UNITJune 2023June 2025Allow2400NoNo
18214109POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, SECONDARY BATTERY, BATTERY MANAGEMENT UNIT, AND ELECTRONIC DEVICEJune 2023May 2024Allow1010NoNo
18339215SYSTEMS AND METHODS FOR MULTI-MODULE CONTROL OF A HYDROGEN POWERED HYBRID ELECTRIC POWERTRAINJune 2023August 2024Abandon1410NoNo
18337824Battery Assembly With Improved Thermal Propagation ManagementJune 2023November 2024Allow1720YesNo
18209182BATTERY SAFETY SYSTEM FOR DETECTING ANALYTESJune 2023July 2024Allow1310NoNo
18204226METAL-ION DEPOSITION REGULATOR FOR SUPPRESSING DENDRITE FORMATION IN ELECTROCHEMICAL CELLSMay 2023March 2024Allow1000YesNo
18326322WINDING SHAFT STRUCTURE AND WINDING APPARATUSMay 2023April 2024Allow1020NoNo
18324044MULTI-STAGE REBALANCING REACTOR FOR REDOX FLOW BATTERY SYSTEMMay 2023November 2024Allow1810YesNo
18254506SOLID OXIDE CELL (SOC) CHIP WITH DOUBLE-ELECTROLYTE STRUCTURE AND PREPARATION METHOD THEREOFMay 2023March 2025Abandon2221YesNo
18319916Hydrogen Generation Using a Fuel Cell System with an RepMay 2023September 2024Allow1610NoNo
18311228BATTERY PACK, ELECTRIC APPARATUS USING BATTERY PACK, AND ELECTRIC APPARATUS MAIN BODYMay 2023April 2024Allow1110NoNo
18305038MOLTEN METAL BATTERY SYSTEM WITH SELF-PRIMING CELLSApril 2023December 2023Allow701NoNo
18300729METHOD FOR FAULT DIAGNOSIS AND COMPUTER DEVICEApril 2023October 2023Allow610NoNo
18131745HIGH PERFORMANCE AIR STABLE SOLID POLYMER ELECTROLYTEApril 2023February 2025Allow2210NoNo
18296078CARRIER FOR BATTERY CELLApril 2023August 2023Allow500YesNo
18127439ELECTROCHEMICAL CELLS AND METHODS OF MANUFACTURING THE SAMEMarch 2023April 2024Allow1310YesNo
18186750AIR TANK AND VARIABLE GEOMETRY AIR HANDLING IN HYDROGEN FUEL CELLSMarch 2023April 2024Allow1310YesNo
18121750TERMINAL ASSEMBLY, TOP COVER ASSEMBLY, ENERGY STORAGE DEVICE AND ELECTRICAL EQUIPMENTMarch 2023March 2025Abandon2420NoNo
18113382MULTI-LAYER THERMAL INSULATION ELEMENT FOR BATTERIESFebruary 2023March 2024Allow1210NoNo
18110045LI/GARNET ELECTROLYTE INTERFACE WITH LOW INTERFACIAL RESISTANCEFebruary 2023November 2024Allow2111NoNo
18162559CATHODE EJECTOR COOLING FLOW CONTROL SYSTEMJanuary 2023September 2023Allow710NoNo
18154393ELECTROLYTE STRUCTURE FOR A HIGH-TEMPERATURE, HIGH-PRESSURE LITHIUM BATTERYJanuary 2023August 2024Allow1930NoNo
18153608Non-Aqueous Electrolyte Including Additive for Non-Aqueous Electrolyte, and Lithium Secondary Battery Including the Non-Aqueous ElectrolyteJanuary 2023November 2023Allow1000NoNo
18095582MODIFIED SILICON MATERIAL AND PREPARATION METHOD THEREOF, NEGATIVE ELECTRODE MATERIALJanuary 2023February 2025Abandon2640YesNo
18095427BATTERY MODULE INCLUDING PRESSURE DROP SHEETJanuary 2023April 2024Allow1520YesNo
18094954ANION EXCHANGE POLYMERS AND ANION EXCHANGE MEMBRANES FOR DIRECT AMMONIA FUEL CELLSJanuary 2023May 2025Allow2810NoNo
18150897LITHIATED SILICON/CARBON COMPOSITE MATERIALS AND METHOD FOR PRODUCING THE SAMEJanuary 2023September 2023Allow801NoNo
18147618LITHIUM-ION RECHARGEABLE BATTERY NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, LITHIUM-ION RECHARGEABLE BATTERY NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION RECHARGEABLE BATTERYDecember 2022August 2024Allow1911NoNo
18147609LITHIUM-ION RECHARGEABLE BATTERY NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREOF, LITHIUM-ION RECHARGEABLE BATTERY NEGATIVE ELECTRODE PLATE, AND LITHIUM-ION RECHARGEABLE BATTERYDecember 2022March 2025Allow2620NoNo
18145036NOVEL LITHIUM METAL NITRIDES AS LITHIUM SUPER-IONIC CONDUCTORSDecember 2022December 2024Allow2411YesNo
18083739CONTROL SYSTEM AND CHARGE AND DISCHARGE CONTROL SYSTEMDecember 2022September 2024Allow2110YesNo
18075490SELF-REFUELING POWER-GENERATING SYSTEMSDecember 2022August 2023Allow811YesNo
18008336BATTERY CELL AND METHOD FOR MANUFACTURING THE SAMEDecember 2022June 2025Allow3000NoNo
18060684RECHARGEABLE LITHIUM BATTERYDecember 2022February 2025Allow2610NoNo
17992977TEST SYSTEM, AIR MIXTURE LINE AND GAS CONTROL UNITNovember 2022June 2025Allow3000NoNo
17993232BATTERY WITH POSITIVE ELECTRODESNovember 2022January 2024Allow1410YesNo
17927591NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY AND USE THEREOFNovember 2022July 2024Allow1910NoNo
17993238METHOD FOR PRODUCING ELECTROLYTE SOLUTIONNovember 2022October 2024Allow2230YesNo
17926163METHOD FOR PRODUCING A SEALED FUEL CELLNovember 2022June 2025Allow3100NoNo
17988120BATTERY, BATTERY PACK, AND AUTOMOBILENovember 2022June 2025Allow3100NoNo
17925422FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEMNovember 2022May 2025Allow3010NoNo
17924974AIR-COOLING TYPE FUEL CELL CAPABLE OF AIR RECIRCULATIONNovember 2022March 2025Allow2910NoNo
18054788ELECTRODE COATINGS AND COMPONENTS THEREOFNovember 2022May 2024Allow1820YesNo
17982069CELL MODULENovember 2022June 2023Allow810NoNo
17976136SEPARATOR WITH ORGANIC/INORGANIC POROUS COATING LAYER FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING SAMEOctober 2022May 2025Allow3100NoNo
17975940THERMAL STORAGE DEVICE FOR BATTERIESOctober 2022August 2023Allow1010NoNo
17974834METHOD FOR CONTROLLING THERMAL MANAGEMENT SYSTEMS OF POWER PLANTOctober 2022September 2023Allow1000NoNo
17974996CATHODE HAVING MULTI-LAYER CATHODE COATINGOctober 2022April 2024Allow1820NoNo
17973539High Efficiency Hydrogen Fueled High Altitude Thermodynamic Fuel Cell System And Aircraft Using SameOctober 2022April 2023Allow510NoNo
17973168FUEL CELL GENERATION SYSTEM CONTROL APPARATUS, SYSTEM INCLUDING THE SAME AND METHOD THEREOFOctober 2022May 2025Allow3010NoNo
17969422POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, METHOD FOR FORMING THE SAME, NONAQUEOUS SECONDARY BATTERY, AND ELECTRICAL DEVICEOctober 2022November 2023Abandon1210NoNo
17919924COAXIAL FUEL CELL CATHODE FLOW PATH DUCTINGOctober 2022March 2025Allow2910NoNo
17966589VENTING APPARATUS FOR BATTERY EJECTA FOR USE IN AN ELECTRIC AIRCRAFTOctober 2022May 2025Abandon3260YesNo
17917424Battery Cell and Battery Cell Manufacturing ApparatusOctober 2022November 2023Allow1400NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 1752.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
20
Examiner Affirmed
11
(55.0%)
Examiner Reversed
9
(45.0%)
Reversal Percentile
89.9%
Higher than average

What This Means

With a 45.0% 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
226
Allowed After Appeal Filing
73
(32.3%)
Not Allowed After Appeal Filing
153
(67.7%)
Filing Benefit Percentile
48.3%
Lower 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, 32.3% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable 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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Art Unit 1752 - Prosecution Statistics Summary

Executive Summary

Art Unit 1752 is part of Group 1750 in Technology Center 1700. This art unit has examined 4,192 patent applications in our dataset, with an overall allowance rate of 83.1%. Applications typically reach final disposition in approximately 23 months.

Comparative Analysis

Art Unit 1752's allowance rate of 83.1% places it in the 71% percentile among all USPTO art units. This art unit has an above-average allowance rate compared to other art units.

Prosecution Patterns

Applications in Art Unit 1752 receive an average of 1.53 office actions before reaching final disposition (in the 26% percentile). The median prosecution time is 23 months (in the 82% 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.