USPTO Art Unit 1736 Prosecution Statistics

Art Unit Information

Art Unit: 1736
Group: 1730
Tech Center: 1700
Total Cases: 13,752
Last Active: October 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19358303METHODS OF INCREASING IRRIGATION WATER AND FERTILIZER DELIVERY TO SOIL USING FORMIC ACID AND FORMATE SALTS, MAKING A FORMATE SALT FROM CARBON DIOXIDE, AND GENERATING A CARBON CREDITOctober 2025March 2026Allow510NoNo
19327937SYSTEMS AND METHODS FOR GENERATING RADIONUCLIDESSeptember 2025January 2026Allow400NoNo
19258281METHOD AND APPARATUS FOR CARBON DIOXIDE SEQUESTRATIONJuly 2025February 2026Allow811YesNo
19258795MOLECULAR SIEVE CONFINED NOBLE METAL CATALYST FOR CO-SCR DENITRIFICATION, PREPARATION METHOD AND APPLICATION THEREOFJuly 2025November 2025Allow410NoNo
19256339Bi2O3/CaSiO3/g-C3N4 PARTICULATE CRYSTALLINE NANOCOMPOSITEJuly 2025October 2025Allow410NoNo
19256405METHODS OF CHROMIUM CATALYST ACTIVATION TO REDUCE GELS AND IMPROVE MELT INDEX POTENTIALJuly 2025August 2025Allow200NoNo
19249200SYNTHESIS OF PHOSPHAZENE-COVALENT ORGANIC FRAMEWORK (COF) FOR ENHANCED LEAD CAPTURE WITH VISUAL FEEDBACKJune 2025November 2025Allow410YesNo
18554889PREPARATION METHOD OF IONIC RARE EARTH LEACHING AGENTJune 2025August 2025Allow2300NoNo
19239490OXYGEN CARRIER COMPOSITIONSJune 2025November 2025Allow510YesNo
19238312METHOD FOR RECOVERING PHOSPHORUS BASED ON CYCLIC HYDROTHERMAL CARBONIZATION OF WETLAND PLANTSJune 2025September 2025Allow300NoNo
19236538METHOD OF PRODUCING HYDROGEN GAS FROM SODIUM BOROHYDRIDEJune 2025August 2025Allow200NoNo
19225576NANOCOMPOSITE MATERIALJune 2025July 2025Allow200NoNo
19223017GAS RECOVERY SYSTEMS AND METHODS BASED ON INTELLIGENT GAS REGULATORY INTERNET OF THINGSMay 2025October 2025Allow501NoNo
19218571DEVICES AND METHODS FOR MULTI-SYSTEM BIOMASS AND COAL CO-COMBUSTION TO PREPARE GRAPHITE SAMPLEMay 2025July 2025Allow200NoNo
19210455METHOD OF PRODUCING HYDROGEN GAS USING NANOCOMPOSITE CATALYSTMay 2025September 2025Allow400NoNo
19203130Methods for Recycling Metals from the Nuclear IndustryMay 2025November 2025Allow611NoNo
19193772g-C3N4@CuO/MgAl2O4 NANOCOMPOSITE FOR PHOTOCATALYTIC DEGRADATION OF POLLUTANTS IN CONTAMINATED WATERApril 2025June 2025Allow200NoNo
19188376AMINE APPENDED BIMETALLIC METAL-ORGANIC FRAMEWORK (MOF-74) FOR CARBON DIOXIDE CAPTURE AND METHOD OF PREPARATION THEREOFApril 2025October 2025Allow611NoNo
19173971Copper Oxide Synthesis by a Borate MethodApril 2025August 2025Allow410NoNo
19097214PROCESS FOR PREPARING A CARBON FIBER PRECURSORApril 2025November 2025Abandon710NoNo
190909664-IODOPYRAZOLE COORDINATION COMPOUND AND PREPARATION METHOD AND USE THEREOFMarch 2025July 2025Allow410NoNo
19086675LIGNIN-BASED POLYMERS AND METHODS OF MAKING THE SAMEMarch 2025October 2025Allow710NoNo
19085651GRAPHENE OXIDE, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY USING GRAPHENE OXIDE, METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND ELECTRONIC DEVICEMarch 2025October 2025Allow610NoNo
19085664GRAPHENE OXIDE, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY USING GRAPHENE OXIDE, METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND ELECTRONIC DEVICEMarch 2025January 2026Allow1011NoNo
19085677GRAPHENE OXIDE, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY USING GRAPHENE OXIDE, METHOD OF MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, NONAQUEOUS SECONDARY BATTERY, AND ELECTRONIC DEVICEMarch 2025February 2026Allow1120NoNo
19082128SYSTEMS AND METHODS FOR REMOVAL AND RECYCLING OF ALUMINUM IMPURITIES FROM BATTERY WASTEMarch 2025August 2025Allow510NoNo
19080857Two-step method to produce monocalcium phosphates from lime softening water plant residualsMarch 2025September 2025Allow610YesNo
19078460Super Absorbent PolymerMarch 2025May 2025Allow210YesNo
19076846SYSTEM AND METHOD FOR SUSTAINABLE PROCESSING OF FOSSIL FUELS OR SUBSURFACE COMODITIES TO REDUCE GREENHOUSE GASES WHILE SEQUESTERING AND REPURPOSING ALTERNATIVE ENERGY COMPONENTSMarch 2025July 2025Allow410NoNo
19109306SEPARATION OF RARE EARTH ELEMENTS IN AN ENVIRONMENT WITH LOW PARTIAL PRESSURES OF OXYGEN CONTAINING GASESMarch 2025November 2025Allow810YesNo
19069544REACTION METHODS FOR PRODUCING NITROGENOUS PHOSPHORYL COMPOUNDS THAT ARE IN SITU FLUID COMPOSITIONSMarch 2025August 2025Allow510NoNo
19070243NANOCOMPOSITE OF GRAPHITIC C3N4, MnO2, and MgAl2O4 FOR HYDROGEN GENERATIONMarch 2025May 2025Allow300NoNo
19052060METHOD OF HEAVY METAL ION DETECTION USING CHEMOSENSORSFebruary 2025April 2025Allow200NoNo
19103375INORGANIC COMPOUND, DISPERSION AND METHOD FOR PRODUCING SAME, AND FILM AND METHOD FOR PRODUCING SAME, INORGANIC COMPOUND, METHOD FOR PRODUCING METHANE AND HYDROGEN, DISPERSION AND METHOD FOR PRODUCING SAME, AND FILM AND METHOD FOR PRODUCING SAMEFebruary 2025March 2026Allow1311NoNo
19047671Multifunctional Agricultural Composition and Method For Preparation ThereofFebruary 2025September 2025Allow820NoNo
19044755FABRICATION OF CaB2O4/Co3(BO3)2/PbO2/Co3O4 NANOCOMPOSITE MATERIAL USING PECHINI SOL-GEL METHODFebruary 2025August 2025Allow601NoNo
19038859CARBON MATERIAL AND PRODUCTION METHOD THEREFORJanuary 2025June 2025Allow510NoNo
19037093METHOD FOR PREPARING PHOSPHORUS-DOPED GRAPHENE USING PHOSPHORUS-CONTAINING SLUDGE AND BIOMASSJanuary 2025May 2025Allow300NoNo
19015905METHODS AND SYSTEMS OF NITRATE REMOVAL IN AQUEOUS SYSTEMS FOR IMPROVED PFAS DESTRUCTIONJanuary 2025September 2025Allow911NoNo
19011889DIRECT CAPTURE OF CARBON DIOXIDEJanuary 2025July 2025Allow610NoNo
18990830COMPOSITIONS FOR INCREASING NITROGEN SOURCES LIFE SPAN IN PLANT GROWTH MEDIUMS AND METHODS OF MAKINGDecember 2024May 2025Allow510YesNo
18873950TIN OXIDE MULTILAYER FILM WITH CATALYST LAYER AND METHOD FOR FORMING SAMEDecember 2024August 2025Allow810YesNo
18975077Super Absorbent PolymerDecember 2024July 2025Allow710YesNo
18975691OXIDATIVE REFORMING AND ELECTROLYSIS SYSTEM AND PROCESS FOR HYDROGEN GENERATIONDecember 2024June 2025Allow710NoNo
18872278CARBON NANOTUBES, CARBON NANOTUBE DISPERSION, CARBON NANOTUBE RESIN COMPOSITION, MIXTURE SLURRY, ELECTRODE FILM, SECONDARY BATTERY, METHOD FOR MANUFACTURING CARBON NANOTUBES, AND METHOD FOR MANUFACTURING A CARBON NANOTUBE DISPERSIONDecember 2024March 2025Allow400NoNo
18967004METHOD OF PHOTOCATALYTIC DEGRADATION AND WATER SPLITTING USING NANOCOMPOSITEDecember 2024October 2025Allow1011NoNo
18870455DYNAMIC OPTIMIZATION METHOD FOR ACID-TO-ORE RATIO IN HIGH-PRESSURE LEACHING OF LATERITE NICKEL ORENovember 2024July 2025Allow710NoNo
18870449METHOD FOR DYNAMICALLY CONTROLLING HIGH-PRESSURE LEACHING REACTION CONDITION OF LATERITE NICKEL ORENovember 2024April 2025Allow500NoNo
18870422PROCESS AND SYSTEM FOR RECOVERING MANGANESE FROM HIGH-PRESSURE LEACHING SYSTEM OF LATERITE NICKEL ORENovember 2024June 2025Allow601NoNo
18869930METHOD FOR CONTINUOUSLY PREPARING MIXED HYDROXIDE PRECIPITATE FROM LATERITE NICKEL ORE BY HYDROMETALLURGYNovember 2024July 2025Allow710NoNo
18959488METHODS OF INCREASING IRRIGATION WATER AND FERTILIZER DELIVERY TO SOIL USING FORMIC ACID AND FORMATE SALTS, MAKING A FORMATE SALT FROM CARBON DIOXIDE, AND GENERATING A CARBON CREDITNovember 2024July 2025Allow721NoNo
18868096AMMONIUM NITRATE REACTOR WITH STATIC MIXERNovember 2024October 2025Allow1120NoNo
18954299COPPER OXIDE-MAGNESIUM ALUMINATE (CuO.MgAl2O4) SPINEL NANOCOMPOSITE AND METHOD OF SYNTHESIS THEREOFNovember 2024February 2025Allow310NoNo
18952072METHODS FOR PREPARING TWO-DIMENSIONAL SHEET-LIKE Li4SiO4 ADSORBENTS USING ATTAPULGITE AND WASTE LITHIUM BATTERIESNovember 2024May 2025Allow610NoNo
18947900Aerogel CompositeNovember 2024January 2026Allow1420YesNo
18945435CARBON FIXATION MATERIAL FOR ADSORBING HEAVY METALS IN SOIL AND PREPARATION METHOD THEREOFNovember 2024April 2025Allow501NoNo
18944203Copper Ferrite Synthesis by a Borate MethodNovember 2024March 2025Allow400NoNo
18944238DIRECT CAPTURE OF CARBON DIOXIDENovember 2024December 2024Allow210NoNo
18935700HIGH-NUTRIENT AND HIGH-ACTIVITY CHEMICAL FERTILIZER-BIOLOGICAL COMPOUND FERTILIZER, AND PREPARATION METHOD AND APPLICATION THEREOFNovember 2024March 2025Allow510NoNo
18935699MICROBIAL PROTECTANT IN HIGH-NUTRIENT AND HIGH-ACTIVITY CHEMICAL FERTILIZER-BIOLOGICAL COMPOUND FERTILIZER AND PREPARATION METHOD THEREOFNovember 2024March 2025Allow510NoNo
18862384SYSTEM AND PROCESS FOR THE PRODUCTION OF UANNovember 2024January 2026Allow1421NoNo
18925910METHOD OF PRODUCING A MESOPOROUS CHITOSAN/NaFeSi2O6 BASED NANOCOMPOSITEOctober 2024April 2025Allow501NoNo
18914931APPARATUSES AND METHODS FOR HYDROGEN PRODUCTIONOctober 2024March 2025Allow510YesNo
18910258SYSTEMS AND METHODS FOR PRODUCING HYDROGEN WITH INTEGRATED CAPTURE OF CARBON DIOXIDEOctober 2024March 2025Allow511NoNo
18909415Aerogel CompositeOctober 2024January 2026Allow1520YesNo
18907700Borate Method for Magnetite SynthesisOctober 2024January 2025Allow320YesNo
18907539PLANT PROPAGATION MEDIUM AND METHODS OF MAKING AND USING ITOctober 2024August 2025Allow1041NoNo
18906175Novel Humic Material and Method to Formulate the SameOctober 2024May 2025Abandon810NoNo
18907328SOIL COMPOSITION INCLUDING BIOCHAR, COMPOST, AND BARK FINESOctober 2024March 2025Allow610YesNo
18894676Super Absorbent PolymerSeptember 2024January 2026Allow1630YesNo
18894537Super Absorbent PolymerSeptember 2024February 2025Allow410YesNo
18889921MESOPOROUS CARBON SORBENTS AND RELATED METHODSSeptember 2024December 2025Allow1521YesNo
18890344REACTION METHODS FOR PRODUCING NITROGENOUS PHOSPHORYL COMPOUNDS THAT ARE IN SITU FLUID COMPOSITIONSSeptember 2024November 2024Allow210NoNo
18889049SYSTEMS AND METHODS FOR THE RECYCLING OF LITHIUM FROM BATTERY WASTESeptember 2024March 2025Allow510YesNo
18887998ION EXTRACTION COLUMN FOR BRINESeptember 2024July 2025Allow1011NoNo
18846285SPHERICAL LITHIUM ADSORBENT AS WELL AS PREPARATION METHOD AND USE THEREOFSeptember 2024February 2026Allow1721YesNo
18817272METHOD FOR PREPARING ORGANIC-INORGANIC HIERARCHICAL ZSM-5August 2024February 2025Allow511NoNo
18816364SYSTEMS AND METHODS FOR PRODUCING LITHIUM CARBONATE AND USES THEREOFAugust 2024February 2025Allow510NoNo
18810367ELECTRICALLY HEATED SUBSTRATES, ASSEMBLIES, SYSTEMS, AND PROCESSES FOR CATALYTIC, CHEMICAL, AND SORBENT APPLICATIONSAugust 2024August 2025Allow1121NoNo
18808285WASTEWATER TREATMENT METHOD FOR AQUEOUS SOLUTIONSAugust 2024November 2024Allow310NoNo
18808252METHOD FOR TREATING AN AQUEOUS SOLUTIONAugust 2024November 2024Allow310NoNo
18808269BATCH METHOD FOR WASTEWATER TREATMENTAugust 2024November 2024Allow310NoNo
18808363METHOD FOR PREPARING MEDIUM- AND HIGH-MODULUS LARGE TOW CARBON FIBERSAugust 2024October 2024Allow200NoNo
18839430AMMONIA SYNTHESIS CONVERTER AND METHOD FOR SMALL PRODUCTION UNITSAugust 2024December 2025Allow1600NoNo
18838514CONTINUOUS MANUFACTURING OF CARBON FOAM STRUCTURES AT ATMOSPHERIC PRESSUREAugust 2024February 2025Allow600NoNo
18837752PROPANE DEHYDROGENATION AND AMMONIA SYNTHESIS COUPLING SYSTEM AND PROCESSAugust 2024February 2025Allow600NoNo
18790965METHODS AND APPARATUSES FOR HYDROGEN PRODUCTIONJuly 2024March 2025Allow820YesNo
18787464PROCESS AND SYSTEM FOR LITHIUM PRODUCTIONJuly 2024June 2025Allow1122YesNo
18778707METHOD OF MAKING CARBON BLACKJuly 2024August 2025Allow1320NoNo
18776304SOLID/LIQUID DESULFURIZATION CATALYST FOR HYDROCARBON PURIFICATIONJuly 2024September 2024Allow200YesNo
18776312HETEROGENEOUS CATALYST FOR HYDROCARBON SWEETENINGJuly 2024September 2024Allow200YesNo
18776316SOLID LIQUID CATALYST COMPOSITION FOR HYDROGEN DESULFURIZATIONJuly 2024September 2024Allow200YesNo
18729381METHOD AND PLANT FOR THE PRODUCTION OF AMMONIA WITH RENEWABLE ENERGYJuly 2024April 2025Allow910NoNo
18774114EV-GRADE LITHIUM SULFIDE AND PREPARATION METHOD FOR THE SAMEJuly 2024January 2025Allow601NoNo
18772446Magnetite Synthesis by a Borate MethodJuly 2024April 2025Abandon911NoNo
18769150CARBON-BASED COMPOSITIONS WITH HIGHLY EFFICIENT VOLUMETRIC GAS SORPTIONJuly 2024September 2025Allow1511NoNo
18767251WATER TREATMENT METHOD WITH PORPHYRIN-CONTAINING ADSORBENTJuly 2024August 2024Allow200YesNo
18727172COPPER CATALYSTS FOR THE ELECTROCHEMICAL CONVERSION OF CARBON DIOXIDE OR CARBON MONOXIDE TO C2+ PRODUCTSJuly 2024March 2026Abandon2011YesNo
18766537CARBONATION OF CONCRETE AGGREGATESJuly 2024August 2025Allow1330NoNo
18764503MAX AND MXENE USING VANADIUM CARBIDE AND METHOD FOR MANUFACTURING SAMEJuly 2024February 2025Allow710NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 1736.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
131
Examiner Affirmed
94
(71.8%)
Examiner Reversed
37
(28.2%)
Reversal Percentile
28.0%
Lower than average

What This Means

With a 28.2% 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
474
Allowed After Appeal Filing
147
(31.0%)
Not Allowed After Appeal Filing
327
(69.0%)
Filing Benefit Percentile
43.7%
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, 31.0% 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 1736 - Prosecution Statistics Summary

Executive Summary

Art Unit 1736 is part of Group 1730 in Technology Center 1700. This art unit has examined 13,752 patent applications in our dataset, with an overall allowance rate of 80.0%. Applications typically reach final disposition in approximately 26 months.

Comparative Analysis

Art Unit 1736's allowance rate of 80.0% places it in the 63% 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 1736 receive an average of 1.53 office actions before reaching final disposition (in the 23% 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 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.