USPTO Art Unit 1735 Prosecution Statistics

Art Unit Information

Art Unit: 1735
Group: 1730
Tech Center: 1700
Total Cases: 10,917
Last Active: June 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19267136METHOD OF HYDROGEN GENERATION THROUGH SODIUM BOROHYDRIDE HYDROLYSIS USING CaV2O6@CaSiO3@g-C3N4 NANOCOMPOSITEJuly 2025September 2025Allow200NoNo
19256128HYDROGEN GENERATION METHOD FROM SODIUM BOROHYDRIDE USING CoO/CaSiO3@g-C3N4 NANOCOMPOSITE MATERIALJune 2025September 2025Allow200NoNo
19217982METHOD OF PRODUCING HYDROGEN GAS USING NANOCOMPOSITE CATALYSTMay 2025August 2025Allow310NoNo
19195599Methods and Devices for Alignment and Joining Large ComponentsApril 2025November 2025Allow611YesNo
19079813Methods for Forming a Rotatable Cutting Bit with Keyed AlignmentMarch 2025December 2025Allow920YesNo
19078696BONDING SYSTEMS USING A PREDETERMINED TILT PROFILEMarch 2025March 2026Allow1200YesNo
19045111Voltage-Assisted Annealing to Alter Tunnel Junction PropertiesFebruary 2025August 2025Allow711NoNo
19043523FRICTION STIR WELDING APPARATUS AND FRICTION STIR WELDING METHODFebruary 2025January 2026Allow1200NoNo
19037810WEDGE BONDING TOOLS, WIRE BONDING SYSTEMS, AND RELATED METHODSJanuary 2025March 2026Allow1410YesNo
19032006PROCESS FOR SELECTIVE ADSORPTION AND RECOVERY OF LITHIUM FROM NATURAL AND SYNTHETIC BRINESJanuary 2025February 2026Allow1320NoNo
19031997PROCESS FOR SELECTIVE ADSORPTION AND RECOVERY OF LITHIUM FROM NATURAL AND SYNTHETIC BRINESJanuary 2025February 2026Allow1321YesNo
19025859MULTI INDIRECT INJECTION SOLIDIFICATION TECHNOLOGYJanuary 2025August 2025Allow701YesNo
19020525APPARATUS FOR SOLDERING ELECTRONIC DEVICESJanuary 2025March 2026Allow1410YesNo
19020375SOLDER PASTE AND SOLDER JOINTJanuary 2025March 2025Allow200NoNo
19018417SOLID STATE ADDITIVE METHODJanuary 2025December 2025Allow1120NoNo
19018368SOLID-PHASE MOLDING PROCESSING METHODJanuary 2025March 2026Allow1410NoNo
19011778METHOD FOR ADJUSTING FLUX DISTRIBUTION POSITIONS ON CIRCUIT BOARDJanuary 2025November 2025Allow1010NoNo
18880717FLUX, SOLDER PASTE, AND METHOD FOR PRODUCING BONDED BODYJanuary 2025March 2025Allow300NoNo
18880511COPPER-ALUMINUM COMPOSITE PLATE MATERIAL PREPARED BY ALUMINUM LIQUID CONTINUOUS CASTING AND PROCESS THEREOFDecember 2024August 2025Allow710NoNo
19004101PULSE CURRENT-ASSISTED ROLL BONDING METHOD FOR MAGNESIUM/TITANIUM COMPOSITE PLATE WITH LARGE THICKNESS RATIODecember 2024June 2025Allow610NoNo
18876394Casting Mold and Method for Producing a CastingDecember 2024July 2025Allow700YesNo
18982333DUAL PUMP SYSTEM AND METHOD TO CONTROL WAVESOLDER CONTACT LENGTHDecember 2024November 2025Allow1100NoNo
18979849Forge Bonding MachineDecember 2024March 2026Allow1510NoNo
18979450WIRE-FEED FRICTION STIR ADDITIVE MANUFACTURING SYSTEMS, DEVICES, AND METHODSDecember 2024November 2025Allow1100NoNo
18973520HEAT TREATMENT FURNACE APPARATUSDecember 2024March 2026Allow1510NoNo
18873226MOLD MANUFACTURING METHODDecember 2024June 2025Allow600NoNo
18872628DRIVEN KERR NONLINEAR OSCILLATOR AND RELATED SYSTEMS AND METHODSDecember 2024March 2025Allow400NoNo
18969225ROBOT WELDING ASSEMBLY MECHANISM AND APPLICATION IN ANNULAR WELDING SEAM DETECTION AND POSTWELD HEAT TREATMENTDecember 2024April 2025Allow410YesNo
18965039FRICTION STIR WELDING TOOL AND WELDING METHODDecember 2024January 2026Allow1411NoNo
18965116OPTIMIZATION OF NITROGEN DIFFUSERS FOR DROSS REDUCTION IN A WAVESOLDER MACHINEDecember 2024October 2025Allow1111NoNo
18870447COMBINED TREATMENT METHOD FOR LATERITE NICKEL ORE HYDROMETALLURGICAL SLAG AND PHOSPHATING SLAGNovember 2024February 2026Allow1500NoNo
18959750CASTING PROCESS FOR MAKING AN EROSION AND WEAR RESISTANT SHOT CHAMBER FOR DIE CASTING APPLICATIONSNovember 2024November 2025Allow1210NoNo
18959363APPARATUS FOR EXTENDING SERVICE LIFE OF SHOT CHAMBER FOR DIE CASTING APPLICATIONNovember 2024July 2025Allow820YesNo
18955060REVERSE SOLDERING CONNECTION STRUCTURE OF MICRONEEDLE AND WIRING AND PREPARATION PROCESS THEREFORNovember 2024July 2025Allow820NoNo
18955851HEAT SHIELD AND JOSEPHSON JUNCTION ARRAY CHIP SYSTEMNovember 2024May 2025Allow610NoNo
18952163WAVE SOLDER FINGER DETECTION SYSTEM AND METHODNovember 2024October 2025Allow1111YesNo
18948585POLYMETALLIC-ORE BENEFICIATION AND SEPARATION REAGENT, PREPARATION METHOD AND USE THEREOFNovember 2024February 2025Allow300NoNo
18947554FRICTION STIR ADDITIVE MANUFACTURING DEVICES AND METHODS FOR FORMING IN-SITU RIVETSNovember 2024November 2025Allow1200NoNo
18945601FRICTION STIR WELDING APPARATUS AND METHODNovember 2024May 2025Allow610YesNo
18946246ULTRASONIC HORN, SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SECONDARY BATTERYNovember 2024January 2026Allow1410NoNo
18940797REFLOW METHOD AND SYSTEMNovember 2024February 2026Allow1510NoNo
18940190SUBSTRATE BONDING APPARATUSNovember 2024March 2026Allow1610NoNo
18939420APPARATUS AND METHODS FOR TOOL MARK FREE STITCH BONDINGNovember 2024March 2026Allow1610NoNo
18934617FRICTION STIR JOINING DEVICE, METHOD OF OPERATING THE SAME AND JOINT STRUCTURENovember 2024October 2025Allow1100NoNo
18932615METHOD OF MANUFACTURING SHEET MATERIAL MADE OF COPPER-SILVER ALLOY AND METHOD OF MANUFATURING SHEET FOR ELECTRODE OF PROBE CARDOctober 2024March 2025Allow510NoNo
18861623LOW-PRESSURE CASTING APPARATUSOctober 2024February 2026Allow1520NoNo
18930515SEPARATION OF RARE EARTH ELEMENTSOctober 2024December 2024Allow200NoNo
18928480HORN AND ULTRASONIC JOINEROctober 2024December 2025Allow1410NoNo
18926693BRAZED COMPONENTS AND IMPROVED METHOD OF MANUFACTURING THEMOctober 2024March 2026Allow1610NoNo
18859401Continuous Ion Exchange Processes for Separating Rare Earth ElementsOctober 2024January 2026Allow1500NoNo
18923356SOLDER REFLOW APPARATUS AND METHOD OF MANUFACTURING AN ELECTRONIC DEVICEOctober 2024September 2025Allow1100NoNo
18917051SOLDERING APPARATUS INCLUDING A SHUTTERED LIGHT SOURCEOctober 2024March 2026Allow1710YesNo
18917361REPAIR WELDING SYSTEM, REPAIR WELDING METHOD, INSPECTION DEVICE, AND ROBOT CONTROL DEVICEOctober 2024March 2026Allow1720NoNo
18917546CONTINUOUS ROD FEED FOR ADDITIVE FRICTION STIR DEPOSITIONOctober 2024November 2025Allow1310YesNo
18915799Golf Club Head With Miter Joint For BrazingOctober 2024August 2025Allow1020NoNo
18913774Golf Club Head With Miter Joint For BrazingOctober 2024September 2025Allow1110YesNo
18911930METHOD OF MANUFACTURING FORMED PRODUCTOctober 2024March 2026Allow1710NoNo
18909598Battery Module, and Battery Pack and Vehicle Including Battery ModuleOctober 2024April 2025Allow610YesNo
18903161WEDGE BONDING TOOLS AND METHODS OF FORMING WIRE BONDSOctober 2024February 2026Allow1711YesNo
18899077SOLDER PREFORM ASSEMBLY AND METHODS OF PREFORMING SOLDER FOR ELECTRONIC BOARD ASSEMBLYSeptember 2024June 2025Allow811YesNo
18890891ULTRASONIC BONDING DEVICE AND WIRE GUIDING MODULE THEREFORSeptember 2024March 2026Allow1811YesNo
18890961SURFACE TREATMENT METHODSeptember 2024March 2026Allow1810NoNo
18886411APPARATUS TO CAST TUBES OF SLUGGISH MATERIAL AND A PROCESS THEREOFSeptember 2024May 2025Allow810YesNo
18846835FRICTION STIR WELDING DEVICE AND MAINTENANCE METHOD FOR SAMESeptember 2024September 2025Allow1200NoNo
18883350ANTI-SKID AND WEAR-RESISTANT AUTOMATIC POSITIONING TOOL FOR WELDING PRODUCTION LINE BASED ON DIGITAL TWINNINGSeptember 2024April 2025Allow720NoNo
18846319ALUMINUM ALLOY BRAZING SHEETSeptember 2024March 2026Allow1810NoNo
18830274WIRE-FEED FRICTION STIR ADDITIVE MANUFACTURING DEVICES AND METHODSSeptember 2024February 2026Allow1820NoNo
18829792ALIGNMENT SPACER ASSEMBLIES FOR WELDING AND METHODS FOR USING SAMESeptember 2024July 2025Allow1100NoNo
18828032SOLDER JETTING HEAD CAPABLE OF ABSORBING IMPACT, AND RELATED SYSTEMS AND METHODSSeptember 2024January 2026Allow1711YesNo
18828538Method For Manufacturing Graphene Aluminum CastingSeptember 2024May 2025Allow810NoNo
18828661METHOD OF BRAZE REPAIR FOR EUTECTIC PHASE REDUCTIONSeptember 2024January 2026Allow1620NoNo
18823376ORBITAL WELDING DEVICE WITH IMPROVED RESIDUAL OXYGEN MEASUREMENTSeptember 2024December 2025Allow1510NoNo
18812756WELDING METHOD FOR HIGH-STRENGTH WELDING WIRE BASED ON NANOPARTICLE IMPLANTATION AND TRACE ELEMENT COMPENSATIONAugust 2024January 2025Allow510NoNo
18839927SOLDER PASTE DISPENSING FEEDBACK SYSTEM AND CIRCUIT BOARD PRINTER USING THE SAMEAugust 2024December 2025Allow1610NoNo
18808291BRAZE TAPE WITH CENTRAL REGION WITH LOW AND HIGH MELTING TEMPERATURE ALLOY MATERIAL, AND RELATED METHODAugust 2024November 2025Allow1510NoNo
18807656Monitoring A Flux ApplicationAugust 2024August 2025Allow1210NoNo
18805678COMPONENT-ATTACHED FPC MANUFACTURING METHODAugust 2024July 2025Allow1100NoNo
18802678MULTICOLOUR CERMET AND/OR CERAMIC ARTICLE AND MANUFACTURING METHOD THEREOFAugust 2024January 2026Allow1710NoNo
18799902COLD PRESSURE WELDING APPARATUS, COIL MANUFACTURING APPARATUS, COIL, AND METHOD OF MANUFACTURING THE SAMEAugust 2024December 2025Allow1610YesNo
18797543BONDING DEVICEAugust 2024June 2025Allow1000NoNo
18798388BUILDING LIQUID FLOW-THROUGH PLATESAugust 2024September 2025Allow1310NoNo
18796764PARENT BORE CYLINDER BLOCK OF AN OPPOSED-PISTON ENGINEAugust 2024March 2025Allow700YesNo
18835407METHOD TO PRODUCE A BATTERY FOR ENERGY STORAGEAugust 2024November 2025Allow1610YesNo
18834260CASTING MOLDJuly 2024January 2026Allow1810YesNo
18786586SOLDER SUPPLY UNIT, SOLDER PIECE MANUFACTURING DEVICE, PART MOUNTING DEVICE, AND PRODUCTION SYSTEMJuly 2024October 2025Allow1510YesNo
18785426ULTRASONIC WELDING HEAD AND WELDING DEVICEJuly 2024August 2025Allow1310NoNo
18783745PUMP CONTROLLER FOR A SAND CASTING SYSTEMJuly 2024September 2025Allow1320YesNo
18780700MATERIAL, APPARATUS, AND METHOD FOR REFRACTORY CASTINGSJuly 2024October 2025Allow1510YesNo
18780814NUCLEAR WASTE STORAGE CANISTERS AND METHOD OF FABRICATING THE SAMEJuly 2024May 2025Allow901NoNo
18780582SUPERCONDUCTOR SYNTHESIS METHODJuly 2024September 2024Allow210NoNo
18779406Casting Core Post and Socket JointJuly 2024March 2025Allow700NoNo
18778844METHOD FOR REPAIRING WIDE CRACK IN HOT GAS PATH PART FOR GAS TURBINE USING BRAZINGJuly 2024January 2026Abandon1810NoNo
18730393PROCESS TO CONDUCT AN AMMONIA CRACKING REACTION IN A FLUIDIZED BED REACTORJuly 2024June 2025Allow1110NoNo
18777092Systems and Methods of Bonding WaxJuly 2024February 2025Allow700YesNo
18776257METHOD OF CLEANING A BOTTOM PLATEJuly 2024March 2026Allow2021NoNo
18729722Method for Controlling a Casting Process, Control System for a Casting Process, Apparatus and Computer ProgramJuly 2024May 2025Allow1011NoNo
18773615CASTING PROCESS OF CENTRAL ROTARY JOINTSJuly 2024January 2026Allow1810NoNo
18774551FIBROUS SILICA ZINC OXIDE- SUPPORTED NICKEL CATALYST FOR DRY REFORMING OF METHANE AND METHODS OF PREPARATION THEREOFJuly 2024December 2024Allow501NoNo
18728789ASSEMBLY FOR PRODUCING A MOLDING MADE OF REMOVABLE MATERIAL OF A TURBOMACHINEJuly 2024March 2025Allow800NoNo
18771594SOW CASTING AUTOMATED GUIDED VEHICLEJuly 2024February 2025Allow710YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 1735.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
401
Examiner Affirmed
293
(73.1%)
Examiner Reversed
108
(26.9%)
Reversal Percentile
20.9%
Lower than average

What This Means

With a 26.9% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is in the bottom 25% across the USPTO, indicating that appeals face significant challenges here.

Strategic Value of Filing an Appeal

Total Appeal Filings
899
Allowed After Appeal Filing
217
(24.1%)
Not Allowed After Appeal Filing
682
(75.9%)
Filing Benefit Percentile
14.8%
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, 24.1% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

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 1735 - Prosecution Statistics Summary

Executive Summary

Art Unit 1735 is part of Group 1730 in Technology Center 1700. This art unit has examined 10,917 patent applications in our dataset, with an overall allowance rate of 63.4%. Applications typically reach final disposition in approximately 31 months.

Comparative Analysis

Art Unit 1735's allowance rate of 63.4% places it in the 19% percentile among all USPTO art units. This art unit has a significantly lower allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 1735 receive an average of 2.10 office actions before reaching final disposition (in the 67% percentile). The median prosecution time is 31 months (in the 47% 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 more office actions than average, plan for relatively streamlined prosecution.
  • The median prosecution time is longer 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.