USPTO Art Unit 3674 Prosecution Statistics

Art Unit Information

Art Unit: 3674
Group: 3670
Tech Center: 3600
Total Cases: 12,238
Last Active: April 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19185160SUPERCRITICAL CO2 THICKENER FOR SHALE GAS RESERVOIR BASED ON HOLLOW MESOPOROUS SILICA NANOPARTICLES AND PREPARATION METHOD THEREOFApril 2025May 2025Allow100NoNo
19051090TRAILER-INTEGRATED SELF-CONTAINED FRAC-SAND SYSTEM AND METHOD WITH SAFETY FEATURESFebruary 2025April 2025Allow200NoNo
18977394PULSED POWER DRILLING WITH MULTIPLE SELECTIVE DRILLING FLUIDSDecember 2024June 2025Allow700NoNo
18971905TWIN BITDecember 2024June 2025Allow610YesNo
18961299MULTIPURPOSE CONVEYOR SYSTEMNovember 2024May 2025Allow610NoNo
18953272ELECTRICALLY ACTUATED ANNULAR SYSTEM AND METHOD FOR USE IN BLOWOUT PREVENTERNovember 2024June 2025Allow700YesNo
18943606Methods for Shortening Waiting-On-Cement Time in a Subterranean WellNovember 2024June 2025Allow700YesNo
18943001DESANDER ASSEMBLY FOR PLUNGER LIFT SYSTEMNovember 2024June 2025Allow700YesNo
18939678SUPPORT MECHANISM OF SELF-ADAPTIVE TRACTION ROBOT FOR COMPLEX WELLBORE AND CONTROL METHOD THEREOFNovember 2024February 2025Allow410NoNo
18938251DESANDER FOR A DOWNHOLE ASSEMBLYNovember 2024April 2025Allow510NoNo
18915084PUSH THE BIT ROTARY STEERABLE SYSTEMOctober 2024May 2025Allow700NoNo
18856461RAPID ASSEMBLY AND AUTOMATIC SAMPLING DRILLING TOOL FOR FROZEN SOIL LAYER EXPLORATIONOctober 2024June 2025Allow800YesNo
18903594Annular Blow Out PreventerOctober 2024April 2025Allow700NoNo
18903641POLYMER-BASED WELL TRACERS WITH TUNABLE RELEASE PROFILEOctober 2024May 2025Allow800YesNo
18895379SYSTEM FOR OPTIMIZING PARTICLE SIZE DISTRIBUTION OF LOST CIRCULATION MATERIALSSeptember 2024December 2024Allow300YesNo
18892007SYSTEM AND METHOD FOR PERMANENT STORAGE OF CARBON DIOXIDE IN SHALE RESERVOIRSSeptember 2024May 2025Allow800YesNo
18830970CARBON DIOXIDE SEQUESTERED PROPPANTS FOR WELL STIMULATIONSeptember 2024June 2025Allow900NoNo
18882439METHODS AND SYSTEMS FOR ROTATING A CASING TO ENSURE EFFICIENT DISPLACEMENT OF CEMENT SLURRYSeptember 2024May 2025Allow800YesNo
18825367METHOD FOR CONSOLIDATING TARGET REGION IN A GEOLOGIC FORMATIONSeptember 2024January 2025Allow510YesNo
18825350METHOD FOR BINDING SAND IN SUBTERRANEAN FORMATIONSeptember 2024January 2025Allow510YesNo
18825309METHOD FOR TREATING UNCONSOLIDATED SUBTERRANEAN FORMATIONSSeptember 2024January 2025Allow510YesNo
18818873Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System WellsAugust 2024March 2025Allow610YesNo
18815732HYDRODYNAMIC DOWN-HOLE ANCHORS AND RELATED METHODSAugust 2024June 2025Allow900NoNo
18809440PROCESS AND MATERIAL FOR REMOVING HYDROGEN SULFIDE FROM SUBTERRANEAN GEOLOGICAL FORMATIONS DURING DRILLING OPERATIONSAugust 2024January 2025Allow500NoNo
18809324METHOD FOR UNDERGROUND SEPARATION OF COMPONENTS IN SULFUR-CONTAINING FLUE GAS AND SEQUESTRATION OF CARBON DIOXIDE AND SULFIDESAugust 2024November 2024Allow300YesNo
18804291Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System WellsAugust 2024March 2025Allow710YesNo
18802048SYSTEMS AND PROCESSES FOR STIMULATING SUBTERRANEAN GEOLOGIC FORMATIONSAugust 2024April 2025Allow810YesNo
18801992ENHANCING CONNECTIVITY BETWEEN INJECTOR AND PRODUCER WELLS USING SEQUENCED STIMULATIONAugust 2024January 2025Allow511NoNo
18800281METHOD FOR REDUCING HYDROGEN SULFIDE IN A SUBTERRANEAN FORMATIONAugust 2024January 2025Allow610NoNo
18800260PROCESS FOR REMOVING HYDROGEN SULFIDE FROM A GAS COMPOSITIONAugust 2024October 2024Allow210NoNo
18800227WEIGHTED DRILLING FLUID COMPOSITIONAugust 2024October 2024Allow210NoNo
18798438INTEGRATED DEVICE AND METHOD FOR CONTINUOUSLY CAPTURING, STORING AND SEPARATING FLUE GAS IN UNDERGROUND ROCK STRATUMAugust 2024February 2025Allow610NoNo
18796416BOTTOM HOLE ASSEMBLY HAVING THREE-POINT CONTACT FOR IMPROVED STEERINGAugust 2024January 2025Allow510YesNo
18794971WELLSITE GREENHOUSE GAS REDUCTION AND HYDROGEN PRODUCTION SYSTEM AND METHODAugust 2024June 2025Allow1100YesNo
18792758PROCESS FOR REMOVING HYDROGEN SULFIDE FROM SUBTERRANEAN GEOLOGICAL FORMATIONS WITH A LAYERED TRIPLE HYDROXIDE MATERIAL IN A WATER-BASED DRILLING FLUIDAugust 2024November 2024Allow410NoNo
18792012EFFERVESCENT TABLET FOR ENHANCED OIL RECOVERY AND ENHANCED OIL RECOVERY METHOD USING THE SAMEAugust 2024January 2025Allow610NoNo
18834825IN-SITU PROCESS TO PRODUCE HYDROGEN-BEARING GAS FROM UNDERGROUND PETROLEUM RESERVOIRSJuly 2024February 2025Allow700NoNo
18786371HIGH THERMAL COEFFICIENT SLURRY COMPOSITIONS AND METHODS THEREFORJuly 2024November 2024Allow310NoNo
18782094CARBONATE ROCK FORMATION SURFACTANT INJECTION METHODJuly 2024September 2024Allow200YesNo
18782103PRESSURE INJECTION METHOD FOR RECOVERING HYDROCARBONSJuly 2024September 2024Allow200YesNo
18782087ENHANCED OIL RECOVERY METHOD AND SYSTEM USING GEMINI SURFACTANTJuly 2024September 2024Allow200YesNo
18780564RESIN SLURRY PLUGGING SYSTEM SUITABLE FOR FRACTURED-VUGGY FORMATION AND PREPARATION AND USE THEREOFJuly 2024November 2024Allow410YesNo
18779708SYSTEMS AND METHODS FOR DELIVERING FLUID INTO A WELLBOREJuly 2024June 2025Allow1111NoNo
18778355CHAMFERED SINKER BAR CONNECTIONJuly 2024June 2025Allow1110YesNo
18775655METHODS AND APPARATUS TO DECOUPLE DOWNHOLE TOOL SPEED FROM CONVEYANCE TOOLSJuly 2024May 2025Allow1010NoNo
18770681WATER DETECTION AND MEASUREMENT SYSTEM AND METHODJuly 2024June 2025Allow1110YesNo
18768483COMPOSITIONS AND METHODS FOR INHIBITING CLAY SWELLING IN HYDROCARBON SHALE FORMATIONSJuly 2024September 2024Allow211YesNo
18768776REAL TIME AUTOMATED CONTROL METHOD FOR WIRELINE DOWNHOLE DEBRIS COLLECTING WHILE MILLING OPERATIONJuly 2024March 2025Allow900NoNo
18768521COMPOSITIONS AND METHODS FOR INCREASING PERMEABILITY IN HYDROCARBON SHALE FORMATIONSJuly 2024October 2024Allow301NoNo
18763426HYDROGEN STORAGE AND RECOVERY WITH IRON-RICH SEDIMENTSJuly 2024March 2025Allow901YesNo
18763303REMOVING HYDROGEN SULFIDE FROM SUBTERRANEAN GEOLOGICAL FORMATION WITH A COPPER MAGNESIUM IRON LAYERED TRIPLE HYDROXIDE ZEOLITE MATERIAL IN A WATER-BASED DRILLING FLUIDJuly 2024September 2024Allow210NoNo
18762783AUTOMATIC DETECTION FUNCTION-INTEGRATED DETECTION APPARATUS AND METHOD FOR WATER FLOWING FRACTURED ZONEJuly 2024November 2024Allow500NoNo
18762378CHEMICAL HYDROSTATIC BACKPRESSURE REDUCTION METHODOLOGY TO FLOW FLUIDS THROUGH DISPOSAL WELLSJuly 2024April 2025Allow900NoNo
18761950HIGH SOLIDS CONTENT FLUID TECHNIQUESJuly 2024May 2025Allow1100NoNo
18760130NORMALIZED SHIFTING VISUALIZERJuly 2024April 2025Allow1000NoNo
18760009GAS DRIVEN WIRELINE RELEASE TOOLJune 2024March 2025Allow910NoNo
18725300COILED TUBING TOOL FLOW TUBE ARCHITECTUREJune 2024May 2025Allow1010YesNo
18725471BLOWOUT PREVENTER RAM SEALS AND RAM BLOCKSJune 2024March 2025Allow900YesNo
18756391Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System WellsJune 2024January 2025Allow610YesNo
18724304METHOD AND SYSTEM FOR SIMULTANEOUS WIRELINE MILLING AND DEBRIS COLLECTIONJune 2024October 2024Allow400NoNo
18753570MONOBORE DRILLING METHODS WITH MANAGED PRESSURE DRILLINGJune 2024January 2025Allow700NoNo
18750652Displaceable Shoe Track AssemblyJune 2024January 2025Allow700NoNo
18722540A WIPER TOOLJune 2024March 2025Allow900YesNo
18746387SURFACTANTS FOR OIL AND GAS PRODUCTIONJune 2024March 2025Allow801YesNo
18720970MULTIPLE EXPANDABLE METAL PACKERS WITH HYDROLOCK PREVENTIONJune 2024May 2025Allow1110YesNo
18719888METHOD FOR DEPLOYING A WELL PUMP ON AN ELECTRICAL CABLEJune 2024November 2024Allow510NoNo
18743952ZERO FLARING ZONAL FORMATION TESTING WITH DRILL STEM TESTING CAPABILITIESJune 2024May 2025Allow1100NoNo
18720297DEPLOYMENT TOOL AND METHODJune 2024April 2025Allow1000NoNo
18719587DRILLING TOOL AND METHOD FOR PRODUCING A BORE IN THE GROUNDJune 2024March 2025Allow900NoNo
18742447SETTING TOOLJune 2024April 2025Allow1010NoNo
18718716SNAP LATCH OR COLLET PROFILEJune 2024October 2024Allow400NoNo
18718446A POLYHALITE COMPOSITION AND METHOD FOR ENHANCED RECOVERY OF OILJune 2024April 2025Allow1010NoNo
18738214METHODS AND SYSTEMS FOR PUMP DOWN RINGS FOR FRAC PLUGSJune 2024May 2025Allow1110NoNo
18737664ESP MONITORING SYSTEM AND METHODOLOGYJune 2024February 2025Allow910NoNo
18737518DOWNHOLE SEPARATION SYSTEM AND METHODJune 2024April 2025Allow1010NoNo
18733866IN-SITU STRESS MEASUREMENT DEVICE AND METHOD FOR ULTRA-DEEP NON-VERTICAL DRILLINGJune 2024January 2025Allow800NoNo
18716817DAMPING DRILL STRING VIBRATIONSJune 2024May 2025Allow1110NoNo
18734583SYSTEMS AND METHODS FOR DRILLING A WELLJune 2024January 2025Allow800YesNo
18732816Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System WellsJune 2024November 2024Allow510YesNo
18732770INITIATOR SYSTEM PROVIDING SET CONFIRMATION FROM PLUG SETTING TOOL IN DOWNHOLE WELLJune 2024April 2025Allow1100NoNo
18716058FUNCTIONALIZED NANOPARTICLES AS WETABILITY MODIFIERJune 2024June 2025Allow1211NoNo
18715122MONITORING CASING ANNULUSMay 2024September 2024Allow400NoNo
18677430METHOD OF USING A DISSOLVABLE DEPLOYMENT DEVICE FOR THE TRANSFER OF ULTRAHIGH RESOLUTION NANOPARTICLE TRACER ADDITIVES INTO A WELLBOREMay 2024June 2025Allow1310NoNo
18714495PACKER ASSEMBLY WITH AN ANTI-EXTRUSION ASSEMBLYMay 2024May 2025Allow1110YesNo
18677530Use of Graphene to Enhance Stability and Density Control of Cement SlurriesMay 2024June 2025Allow1311YesNo
18675521WELL PRODUCTION MANAGEMENT IN SOUR ENVIRONMENT AT A SURFACE EQUIPMENT ZONEMay 2024June 2025Allow1300YesNo
18713189WIRE-GUIDED AUTOMATIC PAY-OFF DEVICE AND METHODMay 2024June 2025Allow1310NoNo
18672094SYNTHESIS AND USE OF GRAFTED GRAPHENE IN AQUEOUS DRILLING FLUIDS AS LOW SHEAR RATE VISCOSITY ENHANCERMay 2024June 2025Allow1301YesNo
18672622SELF-SETTING PLUGMay 2024January 2025Allow800YesNo
18671211TRACERS FOR PETROLEUM RESERVOIRSMay 2024April 2025Allow1101NoNo
18712120NON-PRESSURE SENSITIVE MODULE FOR LINER HANGER INSTALLATIONMay 2024March 2025Allow1000NoNo
18668487SNAKE-SKIN-INSPIRED IN-HOLE BOW SPRING CENTRALIZERMay 2024February 2025Allow900YesNo
18666942Multi-Stage Temporary Plugging Fracturing Method Based on Stress Cage Effect, Device Thereof and Storage MediumMay 2024April 2025Allow1100YesNo
18667222HOT CRUDE GRAVITY DRAINAGE (HCGD) FOR HEAVY AND EXTRA-HEAVY ENHANCED OIL RECOVERY (EOR)May 2024December 2024Allow700NoNo
18667229WHIPSTOCK TO PLUG AND ABANDON WELLBORE BELOW SETTING DEPTHMay 2024May 2025Allow1210NoNo
18664641Identifying Hydrogen Sweet Spots in Subsurface FormationsMay 2024August 2024Allow310NoNo
18663929POWER DISTRIBUTION TRAILER FOR AN ELECTRIC DRIVEN HYDRAULIC FRACKING SYSTEMMay 2024May 2025Allow1210NoNo
18664000ELECTRIC DRIVEN HYDRAULIC FRACKING SYSTEMMay 2024May 2025Allow1210YesNo
18663154DISPLACEMENT SYSTEM SUITABLE FOR STRONG HETEROGENEOUS OIL RESERVOIR AND ITS APPLICATIONMay 2024September 2024Allow400YesNo
18658704PROCESS FOR PROVIDING STEAM FOR A HYDROCARBON RECOVERY PROCESSMay 2024May 2025Allow1210NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 3674.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
177
Examiner Affirmed
102
(57.6%)
Examiner Reversed
75
(42.4%)
Reversal Percentile
85.3%
Higher than average

What This Means

With a 42.4% 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
581
Allowed After Appeal Filing
215
(37.0%)
Not Allowed After Appeal Filing
366
(63.0%)
Filing Benefit Percentile
71.3%
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, 37.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting 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 is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Art Unit 3674 - Prosecution Statistics Summary

Executive Summary

Art Unit 3674 is part of Group 3670 in Technology Center 3600. This art unit has examined 12,238 patent applications in our dataset, with an overall allowance rate of 77.3%. Applications typically reach final disposition in approximately 27 months.

Comparative Analysis

Art Unit 3674's allowance rate of 77.3% places it in the 48% 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 3674 receive an average of 1.90 office actions before reaching final disposition (in the 58% percentile). The median prosecution time is 27 months (in the 65% 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 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.