USPTO Art Unit 3672 Prosecution Statistics

Art Unit Information

Art Unit: 3672
Group: 3670
Tech Center: 3600
Total Cases: 20,032
Last Active: October 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19372456VAULT FOR ENCAPSULATING DEBRIS FROM ASBESTOS CONCRETE PIPE REPAIROctober 2025January 2026Allow310NoNo
19297689ADAPTER ASSEMBLY FOR USE WITH A WELLBORE TOOL STRINGAugust 2025February 2026Allow600NoNo
19259291JUNCTION ORIENTING INTERFACE FOR A MULTILATERAL WELLJuly 2025March 2026Allow810NoNo
19254591WELLHEAD FLOW BLOCK AND FLOW CONTROL MECHANISMSJune 2025February 2026Allow700NoNo
19250104STRUCTURE FOR CONTROLLING CRACK GENERATIONGENERATION IN LARGE-VOLUME SLUICE GATE AND CONSTRUCTION METHOD THEREFORJune 2025August 2025Allow200NoNo
19244462LIQUID ACCUMULATION-FREE PRODUCTION AND DRAINAGE SYSTEM FOR OIL AND GAS WELLJune 2025October 2025Allow410YesNo
19141342HYDROGEN SWELLABLE FILLERS FOR SURFACE AND UNDERGROUND FLUID ISOLATION BARRIERSJune 2025March 2026Allow910YesNo
19237839BYPASS TOOL FOR USE WITH A TUBING ANCHORJune 2025February 2026Abandon810NoNo
19236587PULLBACK SYSTEM FOR DRILLING TOOLJune 2025January 2026Allow700NoNo
19236436APPARATUS AND METHODS FOR CONTROLLING DRILLINGJune 2025January 2026Allow700NoNo
18275051CRUDE OIL EXTRACTION PUMPJune 2025July 2025Allow2320YesNo
19230966Hybrid Tunnel Boring Using Combination of Thermal and Mechanical ProcessesJune 2025March 2026Allow911YesNo
19221143System and Process for Subsea Fiberoptic Logging of a WellMay 2025October 2025Allow410NoNo
19216270Debris Shield for Ball Valve ActuationMay 2025January 2026Allow810YesNo
19198191Electrical Actuation of a Valve in a Wellhead AssemblyMay 2025February 2026Allow1010NoNo
19196394DRILLING AUTOMATION SYSTEMMay 2025January 2026Allow900NoNo
19192883CASING MANDREL HANGERSApril 2025February 2026Allow910NoNo
19179582TUNNEL BORING MACHINE EQUIPPED WITH HIGH-PRESSURE WATER JET CUTTING SYSTEM AND COMBINED TUNNELING METHODApril 2025October 2025Allow610NoNo
19097958MOBILE CORING MACHINE WITH ADJUSTABLE MASTApril 2025January 2026Allow1010NoNo
19116398DEVICES, SYSTEMS, AND METHODS FOR DOWNHOLE SURVEYINGMarch 2025December 2025Allow910NoNo
19090965ROTARY MULTI TOOLMarch 2025January 2026Allow1010NoNo
19085141MULTI-WELL BLENDING SYSTEMMarch 2025March 2026Allow1210NoNo
19081879LARGE SHAPED CHARGE PERFORATION TOOLMarch 2025January 2026Allow1010YesNo
19111327AUTOMATIC THRUST ACTIVATED MULTI-SPEED REDUCTION GEAR AND CLUTCH SYSTEM AND METHODMarch 2025June 2025Allow300YesNo
19075314BLOWOUT PREVENTER SYSTEM AND METHOD UTILIZING SHEAR RAM BUTTRESSMarch 2025December 2025Allow910YesNo
19066162Wellbore Depth InstrumentFebruary 2025October 2025Allow810NoNo
19107582MULTICYCLE VALVE SYSTEMFebruary 2025December 2025Allow1010NoNo
19064794COOLING WELLBORE LOGGING TOOLSFebruary 2025September 2025Allow700NoNo
19062547SAFETY VALVE EMPLOYING RADIALLY COUPLED MAGNETIC TARGETS AND AN ELECTROMAGNET AXIALLY COUPLED TO A MAGNETIC TARGETFebruary 2025January 2026Allow1100NoNo
19059497DRILLING APPARATUS, DRILL BIT, AND METHOD FOR TESTING DRILL BIT PERFORMANCEFebruary 2025February 2026Allow1210NoNo
19059838APPARATUS AND METHODS FOR INTERLOCKING HYDRAULIC FRACTURING EQUIPMENTFebruary 2025February 2026Allow1210NoNo
19104376CONVERTIBLE SLICKLINE STUFFING BOXFebruary 2025June 2025Allow400NoNo
19051848ANTI-CORROSION WEAR-RESISTANT DRILL PIPE AND PREPARATION METHOD THEREOFFebruary 2025June 2025Allow410NoNo
19049537DRILLING MOTOR BEARING ASSEMBLY HAVING BOTH AN INTERNAL AND AN EXTERNAL BENDFebruary 2025November 2025Allow1010YesNo
19040555PRESSURE INTENSIFIER MODULE FOR ADDITIONAL SETTING FORCE IN A RETRIEVABLE BRIDGE PLUGJanuary 2025October 2025Allow800NoNo
19038034SYSTEM FOR DISPENSING COILED TUBINGJanuary 2025October 2025Allow900NoNo
19037176APPARATUS WITH FLUID POWERED DRIVE ASSEMBLIES AND METHOD OF FABRICATIONJanuary 2025July 2025Allow610NoNo
19033774FLUID-DRIVEN DUAL-MODE CIRCULATION TOOLJanuary 2025January 2026Allow1110YesNo
19032716DEVICES, SYSTEMS, AND METHODS FOR GAS LIFT GASJanuary 2025January 2026Allow1200NoNo
19031188INTELLIGENT IMPACT CASING RESHAPING TOOLJanuary 2025October 2025Allow910YesNo
19029870SUBASSEMBLY FOR A DIRECTIONAL DRILLING SYSTEMJanuary 2025March 2026Abandon1410NoNo
19026924Tubing Hanger Alignment Device and Space-out MechanismJanuary 2025November 2025Allow1010NoNo
19024123Space-Out Mechanism for a Tubing Hanger and a TreeJanuary 2025March 2026Allow1420NoNo
19021527Tubing Hanger Alignment Device With Flanged EndJanuary 2025February 2026Allow1320NoNo
19020977POWER SYSTEM AND METHODJanuary 2025February 2026Abandon1310NoNo
18993672METHOD AND DOWNHOLE APPARATUS FOR MATRIX ACIDIZING OF A SUBTERRANEAN ROCK FORMATIONJanuary 2025January 2026Allow1210YesNo
19015862MULTIWELL PAD DRILLING FRAMEWORKJanuary 2025January 2026Allow1220YesNo
19011587MECHANISM FOR GENERATING DOWNLINK CONFIRMATION SIGNALJanuary 2025September 2025Allow800NoNo
19010661ROTATING AND RECIPROCATING SWIVEL APPARATUS AND METHODJanuary 2025February 2026Allow1320NoNo
19011023MODIFIED TORQUE GENERATOR AND METHODS OF USEJanuary 2025January 2026Abandon1210NoNo
19005580SUBSEA HEAT REMOVAL SYSTEMDecember 2024May 2025Allow410NoNo
19005634SYSTEM AND METHOD FOR OPTIMIZED PRODUCTION OF HYDROCARBONS FROM SHALE OIL RESERVOIRS VIA CYCLIC INJECTIONDecember 2024February 2026Allow1310NoNo
19005337INTEGRATED PERFORATING GUN AND SETTING TOOL SYSTEM AND METHODDecember 2024January 2026Abandon1210NoNo
18831391Case Guard Substance and Method of UseDecember 2024August 2025Allow810NoNo
19003110MANAGEMENT OF DRILL STRING TEMPERATURESDecember 2024December 2025Allow1110YesNo
19002219SUBSEA WELL INTERVENTION SYSTEMS AND METHODSDecember 2024November 2025Allow1110NoNo
19002319SUBSEA WELL INTERVENTION SYSTEMS AND METHODSDecember 2024November 2025Allow1010YesNo
19002166SUBSEA WELL INTERVENTION SYSTEMS AND METHODSDecember 2024December 2025Allow1210YesNo
18999657Systems and Methods for Control of a Multichannel Fracturing Pump ConnectionDecember 2024December 2025Allow1210YesNo
18991916SYSTEM AND PROCESS FOR SUBSEA FIBEROPTIC LOGGING OF A WELLDecember 2024October 2025Allow910NoNo
18989099IMPACT CONTROLLER FOR PRIMARY ROCK BREAKAGEDecember 2024March 2025Allow310NoNo
18984529SYSTEM AND METHOD FOR CONSTRUCTION AND COMPLETION OF PRODUCTION AND INJECTION WELLS IN THE PRE-SALT FIELDSDecember 2024November 2025Allow1110NoNo
18982888SYSTEMS, METHODS, AND DEVICES FOR CONTROLLING THE OPERATION OF AN INDUSTRIAL MACHINE BASED ON A PIPE ATTRIBUTEDecember 2024December 2025Allow1110YesNo
18875345A DRILL HEAD FOR USE WITH MICROTUNNELING APPARATUSDecember 2024December 2025Allow1210NoNo
18982367METHODS AND SYSTEMS ASSOCIATED WITH AN AUTOMATED ZIPPER MANIFOLDDecember 2024December 2025Allow1220NoNo
18981584WELL-KILLING SYSTEM FOR ULTRA-DEEP WELL DRILLING WITH CO-EXISTENCE OF OVERFLOW AND LOST CIRCULATION AND OPERATION METHOD THEREOFDecember 2024April 2025Allow410NoNo
18874965GUIDE RODDecember 2024March 2026Allow1510NoNo
18969725REGULATOR HAVING CHECK VALVE MANIFOLD FOR USE IN SUBSEA CONTROL CIRCUITDecember 2024February 2026Allow1410NoNo
18970405DEBRIS RESISTANT KEYED RUNNING TOOL AND METHODDecember 2024January 2026Allow1410YesNo
18968206INTEGRATED DRILLING SYSTEMDecember 2024July 2025Allow810YesNo
18871004DRILLING ASSEMBLYDecember 2024February 2026Allow1410NoNo
18959108COUNTERBALANCE SYSTEMS AND RELATED METHODS FOR CATWALK SYSTEMSNovember 2024December 2025Allow1310NoNo
18959157RISERLESS MARINE PACKAGENovember 2024November 2025Allow1100NoNo
18868664INFLATABLE DOWN HOLE BAGNovember 2024January 2026Allow1410NoNo
18954885FORMATION TESTER STRESS TESTING WITH DRILL PIPE SUPPLIED ACID AND/OR PROPPANT INJECTIONNovember 2024November 2025Allow1110YesNo
18954987SYSTEMS AND METHODS OF POWER GENERATION WITH AQUIFER STORAGE AND RECOVERY SYSTEMNovember 2024March 2026Abandon1510NoNo
18954900Fracturing Hot RockNovember 2024February 2026Allow1510NoNo
18867208RISER SUSPENSION DEVICE WITH MOVEMENT LIMITERNovember 2024January 2026Allow1410NoNo
18946740Real-Time Tool Yield Calibration Of Mud MotorNovember 2024September 2025Allow1010YesNo
18943698SYSTEMS AND METHODS FOR DISCOVERING AND RECOVERING SUBSURFACE FLUIDS AND VERIFICATION OF SUBSURFACE STORAGE FLUIDSNovember 2024September 2025Allow1020YesNo
18943448Forming High-Efficiency Geothermal WellboresNovember 2024January 2026Allow1410YesNo
18941974METHODS AND SYSTEMS FOR INSTALLING TUBULARS IN WELLSNovember 2024January 2026Allow1510NoNo
18938950METHOD AND APPARATUS FOR PERFORMING DOWNHOLE OPERATIONS, INCLUDING PERFORATING AND CEMENTING OPERATIONSNovember 2024December 2025Allow1410NoNo
18936482DOWNHOLE SEPARATORNovember 2024November 2025Allow1210NoNo
18934694Fixed-Volume Setting ToolNovember 2024February 2026Allow1610YesNo
18933220SYSTEMS AND METHODS FOR ANCHORING A SUB-SURFACE COMPLETION UNIT IN A WELLBOREOctober 2024February 2026Allow1620YesNo
18933000FLUIDIZED COAL MINING METHOD UTILIZING SELF-ENERGY STORAGE OF COAL SEAMOctober 2024January 2025Allow300NoNo
18932064Dynamically Engageable Electromechanical BrakeOctober 2024December 2025Allow1411YesNo
18929020ROD GUIDE CONFIGURATIONS FOR SUCKER ROD PUMPSOctober 2024October 2025Allow1210YesNo
18929114UNWANTED PHARMACEUTICAL FORMULATION DISPOSAL SYSTEM AND MAILEROctober 2024October 2025Allow1220YesNo
18924653COILED TUBING DIMPLING TOOLSOctober 2024October 2025Allow1210NoNo
18924704High Flow Insert Safety Valve That Is Well Pressure InsensitiveOctober 2024September 2025Allow1110YesNo
18921867CONTROL LINE CLAMP CONFIGURATION, METHOD AND SYSTEMOctober 2024January 2026Allow1510YesNo
18858450WHIPSTOCK ASSEMBLY AND ASSOCIATED METHOD OF INSTALLING THE WHIPSTOCK ASSEMBLYOctober 2024December 2025Allow1410NoNo
18922319SYSTEM AND METHOD FOR IMAGING SUBSURFACE DENSITY USING COSMIC RAY MUONSOctober 2024November 2025Allow1310NoNo
18919585DOWNHOLE SEGREGATION FOR WIRELINE FORMATION FLUID SAMPLINGOctober 2024November 2025Allow1310YesNo
18918584WELLHEAD FLOW BLOCK AND FLOW CONTROL MECHANISMSOctober 2024January 2026Allow1530NoNo
18917145DEVICES AND TECHNIQUES RELATING TO LANDFILL GAS EXTRACTIONOctober 2024November 2025Allow1310NoNo
18915252COAL AND COALBED METHANE MINING SYSTEM BASED ON GROUND DRILLING, METHOD AND RELATED DEVICEOctober 2024January 2025Allow310NoNo
18912156WELLBORE COMPLETION ASSEMBLYOctober 2024October 2025Allow1310NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3672.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
172
Examiner Affirmed
124
(72.1%)
Examiner Reversed
48
(27.9%)
Reversal Percentile
26.7%
Lower than average

What This Means

With a 27.9% 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
665
Allowed After Appeal Filing
253
(38.0%)
Not Allowed After Appeal Filing
412
(62.0%)
Filing Benefit Percentile
81.6%
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, 38.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the top 25% across the USPTO, indicating that filing appeals is particularly effective here. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Strategic Recommendations

⚠ Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

✓ Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Art Unit 3672 - Prosecution Statistics Summary

Executive Summary

Art Unit 3672 is part of Group 3670 in Technology Center 3600. This art unit has examined 20,032 patent applications in our dataset, with an overall allowance rate of 80.8%. Applications typically reach final disposition in approximately 27 months.

Comparative Analysis

Art Unit 3672's allowance rate of 80.8% places it in the 66% 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 3672 receive an average of 1.75 office actions before reaching final disposition (in the 39% percentile). The median prosecution time is 27 months (in the 71% 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.