USPTO Art Unit 1751 Prosecution Statistics

Art Unit Information

Art Unit: 1751
Group: 1750
Tech Center: 1700
Total Cases: 5,932
Last Active: August 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19304647COMPOSITE SILICON MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE, SECONDARY BATTERY, AND ELECTRICAL APPARATUSAugust 2025March 2026Allow710NoNo
19178513A SYSTEM FOR TRACKING POSITION OF AN ELECTRODE, AND A METHOD THEREOFApril 2025August 2025Allow410NoNo
19172807Negative Electrode and Lithium Secondary BatteryApril 2025September 2025Allow510YesNo
19171698SUBSTRATE FOR SEPARATOR OF ELECTROCHEMICAL DEVICE, SEPARATOR INCLUDING SAME, AND METHOD OF FORMING BATTERY CELL SEPARATORApril 2025October 2025Allow610YesNo
19034578LITHIUM ION BATTERYJanuary 2025August 2025Allow710YesNo
19034792NEGATIVE ELECTRODE PLATE AND ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS CONTAINING SAMEJanuary 2025August 2025Allow701NoNo
18994756Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the SameJanuary 2025July 2025Allow600NoNo
19002925ELECTRODE FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAMEDecember 2024December 2025Allow1220NoNo
18962293LITHIUM METAL BATTERYNovember 2024December 2025Allow1230YesNo
18868233Negative Electrode for Lithium Secondary Battery and Method for Manufacturing SameNovember 2024March 2025Allow400NoNo
18933920BATTERY CELL, BATTERY, AND ELECTRICAL DEVICEOctober 2024January 2025Allow300NoNo
18860021Method for Preparing Negative Electrode Sheet of Nickel-Metal Hydride BatteryOctober 2024February 2025Allow400NoNo
18917529Method of Manufacturing Electrode for Secondary Battery Using Insulating Composition Including Aqueous Binder Substituted with Non-Aqueous SolventOctober 2024December 2025Allow1421YesNo
18911196TOP COVER ASSEMBLY, SECONDARY BATTERY, BATTERY MODULE, AND ELECTRICITY-CONSUMPTION DEVICEOctober 2024November 2025Allow1330NoNo
18836153BATTERY ASSEMBLY FOR A MOTOR VEHICLEAugust 2024September 2025Allow1301YesNo
18795323SUBSTRATES, OXYGEN ELECTRODES AND ELECTROCHEMICAL DEVICESAugust 2024June 2025Abandon1011NoNo
18779276Method For Manufacturing A Co-Axial Glass-To-Metal Seal Feedthrough For A Case-Neutral Electrochemical CellJuly 2024September 2024Allow200YesNo
18730216Negative Electrode for Lithium Secondary Battery and Lithium Secondary Battery Comprising SameJuly 2024May 2025Allow1010YesNo
18719377Negative Electrode for Lithium Secondary Battery, and Magnetic Alignment Device for Negative Electrode for SameJune 2024March 2025Allow901NoNo
18739751COMPOSITE POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, POSITIVE ELECTRODE INCLUDING THE SAME, AND SECONDARY BATTERY INCLUDING THE SAMEJune 2024January 2026Abandon1921NoNo
18738082ANODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAMEJune 2024September 2025Allow1610NoNo
18714927Magnetic Alignment Device for Anode, and Anode Manufacturing Method Using SameMay 2024February 2025Allow810NoNo
18640456ADAPTABLE PROCESSES AND SYSTEMS FOR PURIFYING CO-PRECIPITATED OR INDEPENDENT STREAMS OF MANGANESE, NICKEL, AND COBALT FROM LITHIUM-ION BATTERY WASTE STREAMSApril 2024October 2024Allow610YesNo
18641100HYBRID REDOX FUEL CELL SYSTEMApril 2024March 2026Abandon2310NoNo
18639273ENERGY-STORAGE DEVICE, ELECTRICITY-CONSUMPTION SYSTEM, AND ENERGY-STORAGE SYSTEMApril 2024July 2024Allow300YesNo
18603603Conformal Wearable BatteryMarch 2024December 2025Allow2111NoNo
18690992LITHIUM SECONDARY BATTERY INCLUDING Si-BASED ANODE ACTIVE MATERIALMarch 2024November 2025Allow2020NoNo
18690987ANODE MATERIAL AND BATTERYMarch 2024April 2025Allow1300NoNo
18443695GEL ELECTROLYTE COMPOSITION FOR A BATTERY AND A METHOD OF IMPLEMENTATIONFebruary 2024July 2025Abandon1730YesNo
18440047CATHODE ACTIVE MATERIAL AND FLUORIDE ION BATTERYFebruary 2024March 2025Allow1310NoNo
18437703Co-Axial Glass-To-Metal Seal Feedthrough For A Case-Neutral Electrochemical CellFebruary 2024August 2024Allow611NoNo
18435209SILICON ANODE BATTERYFebruary 2024August 2025Abandon1810NoNo
18430676NEGATIVE ELECTRODE PLATE AND PREPARATION METHOD THEREOF, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL APPARATUSFebruary 2024February 2026Allow2520YesNo
18409458BINDER SOLUTION FOR ALL-SOLID-STATE BATTERY, ELECTRODE SLURRY FOR ALL-SOLID-STATE BATTERY COMPRISING THE SAME AND METHOD OF MANUFACTURING ALL-SOLID-STATE BATTERY USING THE SAMEJanuary 2024December 2025Allow2310NoNo
18395016CURRENT COLLECTING COMPONENT, ENERGY STORAGE DEVICE AND POWER CONSUMING DEVICEDecember 2023May 2024Allow500NoNo
18392273END COVER ASSEMBLY, ENERGY STORAGE APPARATUS, AND ELECTRICITY-CONSUMPTION DEVICEDecember 2023July 2025Allow1840NoNo
18567678COATED ELECTRODE ACTIVE MATERIAL PARTICLES FOR LITHIUM-ION BATTERIES, ELECTRODE FOR LITHIUM-ION BATTERIES, AND PRODUCTION METHOD OF COATED ELECTRODE ACTIVE MATERIAL PARTICLES FOR LITHIUM-ION BATTERIESDecember 2023March 2026Abandon2701NoNo
18529843BATTERY CELL INCLUDING ELECTROLYTE ION CONCENTRATION MEASUREMENT UNIT AND METHOD FOR MEASURING ELECTROLYTE CONCENTRATION USING SAMEDecember 2023December 2024Allow1200NoNo
18523010TERMINAL ASSEMBLY AND BATTERY FRAME MEMBER FOR RECHARGEABLE BATTERYNovember 2023September 2025Allow2220NoNo
18561713SLOT ELECTRODE STACK AND ELECTROCHEMICAL CELLS AND BATTERIES CONTAINING A SLOT ELECTRODE STACKNovember 2023July 2025Abandon2001NoNo
18388531CURRENT COLLECTOR, MANUFACTURING METHOD AND EQUIPMENT THEREOF, AND CURRENT COLLECTOR PREFORMNovember 2023March 2026Allow2821YesNo
18388369BATTERY UTILIZING PRINTABLE LITHIUMNovember 2023September 2024Allow1000NoNo
18381653BATTERY PACK CASE AND BATTERY PACKOctober 2023August 2025Allow2221NoNo
18380679POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY CELL, AND NON-AQUEOUS ELECTROLYTE SECONDARY CELLOctober 2023July 2024Allow800NoNo
18286708BATTERY, CURRENT COLLECTOR PLATE APPLIED THERETO, AND BATTERY PACK AND VEHICLE COMPRISING THE SAMEOctober 2023April 2025Allow1801YesNo
18013299SEPARATOR AND LITHIUM BATTERY EMPLOYING SAMESeptember 2023October 2025Allow3410NoNo
18471399BATTERY, POWER CONSUMPTION DEVICE, AND METHOD AND DEVICE FOR PRODUCING BATTERYSeptember 2023March 2026Allow3021YesNo
18243937METHOD FOR PREPARING POROUS CARBON MATERIAL, AND SULFUR-CARBON COMPOSITE AND LITHIUM-SULFUR BATTERY INCLUDING THE SAMESeptember 2023October 2025Allow2540YesNo
18458869COMPOSITION, NEGATIVE ELECTRODE AND A BATTERY EMPLOYING THE SAMEAugust 2023October 2025Allow2520YesNo
18454412CLOSED-LOOP LEAD ACID BATTERY RECYCLING PROCESS AND PRODUCTAugust 2023May 2025Allow2120YesNo
18448911PALLET AND BATTERY RESTRAINT APPARATUSAugust 2023February 2024Allow610YesNo
18363576METHODS AND SYSTEMS FOR PRETREATING BIPOLAR PLATE AND USE THEREOF IN REDOX FLOW BATTERYAugust 2023December 2025Abandon2801NoNo
18352092ELECTROCHEMICAL CELL SYSTEM CONTAINING AIR BAFFLE ASSEMBLY WITH AIR BYPASS MITIGATION FEATURES AND METHOD OF OPERATING THEREOFJuly 2023May 2024Allow1010NoNo
18220086LEAD ACID BATTERY SEPARATORS, BATTERIES, AND RELATED METHODSJuly 2023May 2025Abandon2211NoNo
18270780NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING SAME, SECONDARY BATTERY INCLUDING SAME, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE ACTIVE MATERIALJuly 2023January 2026Allow3100NoNo
18213722BATTERY STORAGE DEVICE AND OILING METHODJune 2023November 2025Allow2921YesNo
18334801METHOD FOR REDUCING WASTE BY RECOVERING TRANSITION METALS FROM LITHIUM SECONDARY BATTERYJune 2023June 2025Allow2420YesNo
18265860METHOD FOR SAFE PYROLYSIS AND IMPURITY REMOVAL OF WASTE LITHIUM BATTERY AND APPLICATIONJune 2023November 2024Abandon1720NoNo
18206613CARBON-NEUTRAL PROCESS FOR GENERATING ELECTRICITYJune 2023April 2025Allow2300NoNo
18329558BATTERY PACK BUS SYSTEMSJune 2023October 2024Abandon1721YesNo
18324592SINGLE-CRYSTALLINE LOW-COBALT TERNARY MATERIAL, METHOD FOR PREPARING SAME, SECONDARY BATTERY, BATTERY PACK, AND POWER CONSUMPTION APPARATUSMay 2023September 2025Abandon2741NoNo
18319931ANODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAMEMay 2023November 2023Allow610NoNo
18303571SEALED POWER STORAGE DEVICEApril 2023February 2026Allow3410NoNo
18136511SECONDARY BATTERY AND ELECTRONIC DEVICEApril 2023March 2025Allow2310NoNo
18299643CATHODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY INCLUDING THE SAME AND METHOD OF FABRICATING LITHIUM SECONDARY BATTERYApril 2023January 2024Allow911NoNo
18297845SUPPORT MEMBER FOR BATTERY PACK TOP HOUSINGApril 2023January 2025Allow2210NoNo
18297906SULFIDE SOLID ELECTROLYTE AND METHOD FOR MANUFACTURING SAMEApril 2023January 2026Allow3310YesNo
18194508NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAMEMarch 2023January 2024Allow1011NoNo
18192064ELECTRODES WITH IMPROVED CELL REVERSAL TOLERANCE THROUGH FUNCTIONALIZED AND STABILIZED METAL OXIDESMarch 2023September 2025Abandon3010NoNo
18188798BATTERY MODULE FOR ELECTRICALLY-DRIVEN AIRCRAFTMarch 2023November 2023Allow710YesNo
18124327Secondary BatteryMarch 2023June 2025Abandon2720NoYes
18181744BATTERY MODULEMarch 2023May 2024Allow1400YesNo
18119378LOWER PLASTIC MEMBER, TOP COVER ASSEMBLY, ENERGY STORAGE DEVICE AND ELECTRICAL EQUIPMENTMarch 2023January 2026Allow3431NoNo
18119218METHODS AND SYSTEMS FOR DETERMINING AVERAGE OXIDATION STATE OF REDOX FLOW BATTERY SYSTEMSMarch 2023October 2025Allow3211YesNo
18023741COATED POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLES FOR LITHIUM ION BATTERYFebruary 2023March 2026Abandon3610NoNo
18114833POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERYFebruary 2023June 2024Allow1600NoNo
18173796POWER STORAGE DEVICE AND PRODUCING METHOD THEREFORFebruary 2023February 2026Allow3610NoNo
18173295NEGATIVE ACTIVE MATERIAL, ELECTROCHEMICAL DEVICE THAT USES SAME, AND ELECTRONIC DEVICEFebruary 2023December 2023Allow1020YesNo
18042572SMART THERMAL MANAGEMENT SYSTEM TO PREVENT THERMAL RUNAWAY IN RECHARGEABLE BATTERIESFebruary 2023August 2025Allow3000NoNo
18171991BATTERY MODULEFebruary 2023March 2026Allow3710NoNo
18099791BATTERY CELL, BATTERY, ELECTRICAL APPARATUS, AND MANUFACTURING METHOD FOR BATTERY CELLJanuary 2023December 2025Allow3510NoNo
18006250Secondary BatteryJanuary 2023December 2025Allow3510YesNo
18098285REPLENISHED NEGATIVE ELECTRODES FOR SECONDARY BATTERIESJanuary 2023February 2024Allow1300NoNo
18015826ANODE SUB-SYSTEM FOR A FUEL CELL SYSTEM, AND FUEL CELL SYSTEMJanuary 2023October 2025Abandon3431YesNo
18152689SYSTEM AND METHOD FOR PRESSURIZING ALL-SOLID-STATE SECONDARY BATTERY AT HIGH TEMPERATUREJanuary 2023July 2025Allow3011NoNo
18013939BATTERYDecember 2022December 2025Allow3610NoNo
18090947SECONDARY BATTERYDecember 2022July 2025Allow3000NoNo
18003690NON-AQUEOUS ELECTROLYTE FOR RECHARGEBALE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAMEDecember 2022December 2025Allow3610NoNo
18087248HEATABLE BATTERY PACK, HEATABLE BATTERY SYSTEM, AND VEHICLEDecember 2022October 2025Allow3420YesNo
18081041Battery ModuleDecember 2022January 2026Allow3730YesNo
18010015HEAT INSULATION STRUCTURE FOR HIGH-TEMPERATURE REACTION ROOMDecember 2022November 2025Allow3500NoNo
18077701BATTERY ENCLOSURE AND METHOD OF MANUFACTURING A BATTERY ENCLOSUREDecember 2022March 2025Allow2711YesNo
18077050SULFIDE-BASED SOLID ELECTROLYTEDecember 2022June 2025Allow3000NoNo
18061424BRANCHED ANODES FOR MICROBIAL FUEL CELLSDecember 2022May 2024Allow1701NoNo
18073884NEGATIVE ACTIVE MATERIAL, ELECTROCHEMICAL DEVICE THAT USES SAME, AND ELECTRONIC DEVICEDecember 2022December 2023Allow1220NoNo
18071767SEALING TOOL KIT FOR THERMAL SEALING OF A BATTERY CELL ENVELOPE AND BATTERY CELLNovember 2022February 2026Abandon3910NoNo
17928590BATTERY MODULE, MANUFACTURING METHOD THEREOF AND BATTERY PACKNovember 2022November 2025Allow3510NoNo
18058979CATALYST FOR FUEL CELLS AND METHODS OF PREPARING THE SAMENovember 2022June 2025Allow3100NoNo
18058418POLYMER ELECTROLYTE FOR A SOLID STATE BATTERYNovember 2022November 2024Allow2440YesNo
17992459Pouch-Type Battery Cell Including Venting Member and Battery Pack Including the SameNovember 2022December 2025Allow3741YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 1751.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
57
Examiner Affirmed
40
(70.2%)
Examiner Reversed
17
(29.8%)
Reversal Percentile
36.5%
Lower than average

What This Means

With a 29.8% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
373
Allowed After Appeal Filing
106
(28.4%)
Not Allowed After Appeal Filing
267
(71.6%)
Filing Benefit Percentile
28.5%
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, 28.4% 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 face challenges. Ensure your case has strong merit before committing to full Board review.

⚠ Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Art Unit 1751 - Prosecution Statistics Summary

Executive Summary

Art Unit 1751 is part of Group 1750 in Technology Center 1700. This art unit has examined 5,932 patent applications in our dataset, with an overall allowance rate of 69.2%. Applications typically reach final disposition in approximately 26 months.

Comparative Analysis

Art Unit 1751's allowance rate of 69.2% places it in the 30% 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 1751 receive an average of 1.47 office actions before reaching final disposition (in the 20% percentile). The median prosecution time is 26 months (in the 73% 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.