USPTO Examiner BHUSHAN KUMAR R - Art Unit 1766

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19328768SUBTERRANEAN FORMATIONSSeptember 2025January 2026Allow410NoNo
19250126POLYCARBOXYLATE THINNER FOR CARBONATE/BICARBONATE CONTAMINATION RESISTANT WATER-BASED DRILLING FLUID AND PREPARATION METHOD AND APPLICATION THEREOFJune 2025October 2025Allow411NoNo
19215103AQUEOUS INJECTION FLUID AND METHOD FOR SULFATE SCALE INHIBITION IN SUBTERRANEAN FORMATIONSMay 2025November 2025Allow501NoNo
19185684PLANT-BASED DRILLING FLUID COMPOSITIONApril 2025June 2025Allow200YesNo
19119792SULFONYL AZIDE COMPOSITION FOR SULFUR SCAVENGING IN OILFIELD OPERATIONSApril 2025July 2025Allow300NoNo
19092195HYDROXYETHYL CELLULOSE-BASED BRINE TREATMENT SOLUTION FOR ENHANCED OIL RECOVERY AND USES THEREOFMarch 2025November 2025Allow710NoNo
19070894STRONG SALT-RESISTANT SELF-DEGRADATION PLUGGING AGENT FOR WATER-BASED DRILLING FLUID AND PREPARATION METHOD THEREFORMarch 2025June 2025Allow410NoNo
19032595SILICATE WATER-BASED DRILLING FLUID FOR COALBED METHANE WELLS AND APPLICATION THEREOFJanuary 2025May 2025Allow410NoNo
19032730CO2 CHEMICAL REACTION VISCOSITY-INCREASING TYPE POLYMER SURFACTANT FOR GAS CHANNELING CONTROL DURING CO2 FLOODING IN OFFSHORE HEAVY OIL RESERVOIRS, PREPARATION METHOD THEREFOR AND USE THEREOFJanuary 2025July 2025Allow611YesNo
18914368HIGH-TEMPERATURE AND HIGH-SALT RESISTANT HYPERBRANCHED LUBRICANT FOR WATER-BASED DRILLING FLUID, AND PREPARATION AND APPLICATION THEREOFOctober 2024January 2025Allow301YesNo
18853566BRINE-TOLERANT COMPOSITIONS COMPRISING FATTY ACID OR FATTY ESTER REACTION PRODUCTS OF SACCHARIDE POLYMERSOctober 2024October 2025Allow1211NoNo
18810299WATER-BASED DRILLING FLUID FORMULATED USING MnZnFe-LAYERED TRIPLE HYDROXIDE AND A PROCESS FOR SCAVENGING HYDROGEN SULFIDE FROM SUBTERRANEAN GEOLOGICAL FORMATIONSAugust 2024November 2024Allow300NoNo
18764927REMOVING HYDROGEN SULFIDE FROM SUBTERRANEAN GEOLOGICAL FORMATION WITH A COPPER MAGNESIUM IRON LAYERED TRIPLE HYDROXIDE MATERIAL IN A WATER-BASED DRILLING FLUIDJuly 2024September 2024Allow300NoNo
18751778CARBON DIOXIDE SEQUESTERED CEMENT FOR WELL CEMENTINGJune 2024February 2026Allow2001NoNo
18748665METHOD FOR REDUCING HYDROGEN SULFIDE (H2S) CONTENT OF H2S-CONTAINING SUBTERRANEAN FORMATIONJune 2024July 2025Allow1321YesNo
18746626SUBTERRANEAN FORMATIONSJune 2024October 2025Abandon1611NoNo
18745575ASPHALTENE INHIBITION AND/OR DISPERSION IN PETROLEUM FLUIDSJune 2024October 2025Allow1611NoNo
18675876POLYMER VISCOSITY REDUCER FOR WATER-BASED DRILLING FLUID AND PREPARATION METHOD THEREOFMay 2024March 2025Allow1000NoNo
18657276POLYMER BLENDS FOR USE IN WELLBORE APPLICATIONSMay 2024August 2025Allow1510YesNo
18639736SELF-DESTRUCTIVE BARITE FILTER CAKE IN WATER-BASED AND OIL-BASED DRILLING FLUIDSApril 2024June 2025Allow1411NoNo
18626703CEMENT SLURRIES, CURED CEMENT AND METHODS OF MAKING AND USE OF THESEApril 2024April 2025Allow1201YesNo
18616673MODIFIED BENTONITE DRILLING FLUID COMPOSITIONMarch 2024August 2024Allow511NoNo
18616632METHOD OF DRILLING A SUBTERRANEAN GEOLOGICAL FORMATION WITH DATE BASED DRILLING FLUIDMarch 2024September 2024Allow611NoNo
18616739DATE PALM RESIDUE DRILLING MUD COMPOSITIONMarch 2024August 2024Allow511NoNo
18590758MUSSEL BIOMIMETIC HEAT-RESISTANT AND SALT-TOLERANT THICKENER, PREPARATION METHOD THEREFOR, AND GEL FRACTURING FLUID, PREPARATION METHOD AND USE THEREOFFebruary 2024August 2024Allow601NoNo
18437971PROPPANT PARTICLES FORMED FROM SLURRY DROPLETS AND METHODS OF USEFebruary 2024July 2025Allow1711NoNo
18437450PROCESSES AND APPARATUS FOR PRODUCING NANOCELLULOSE, AND COMPOSITIONS AND PRODUCTS PRODUCED THEREFROMFebruary 2024September 2025Abandon2020NoNo
18411706Blue-Excitable Water-Solvated Polymeric DyesJanuary 2024March 2026Allow2631NoNo
18402787HIGH-TEMPERATURE VISUAL ACID ETCHING EXPERIMENTAL DEVICE AND METHODJanuary 2024August 2024Allow700NoNo
18537488LOW-SHRINKAGE AND HIGH-STRENGTH PLANT-BASED RESINOUS BLOCKING AGENT AND PREPARATION METHOD THEREOFDecember 2023September 2024Allow1920NoNo
18497439DEVELOPMENT OF ULTRA-HIGH MOLECULAR WEIGHT (UHMW) BRANCHED BLOCK COPOLYMER SHALE INHIBITOR FOR WATER BASED DRILLING FLUIDOctober 2023April 2025Allow1821NoNo
18489296METHOD FOR DRILLING A WELLBORE WITH A REDUCED FERRITE SAG COMPOSITIONOctober 2023October 2024Allow1211NoNo
18483279DRAG REDUCING AGENT AND PROCESS OF MANUFACTURE THEREOFOctober 2023September 2025Abandon2321YesNo
18476077DEVELOPMENT OF ULTRA-HIGH MOLECULAR WEIGHT (UHMW) BRANCHED BLOCK COPOLYMER DRAG REDUCER WITH IMPROVED MECHANICAL AND CHEMICAL STABILITYSeptember 2023March 2025Allow1812NoNo
18547944CURING AGENTS FOR FLUOROELASTOMERSAugust 2023March 2026Allow3100NoNo
18362741AMPHIPHILIC BLOCK COPOLYMER SURFACTANT FOR ATTENUATING ACID REACTIVITY DURING ACID STIMULATION OF CARBONATE RICH RESERVOIRSJuly 2023August 2024Allow1201YesNo
18225485METHODS FOR STABILIZING WATER SENSITIVE CLAYS AND MIGRATING FINES IN SUBTERRANEAN FORMATIONSJuly 2023January 2025Abandon1811NoNo
18343871INHIBITIVE DIVALENT WELLBORE FLUIDS, METHODS OF PROVIDING SAID FLUIDS, AND USES THEREOFJune 2023May 2024Allow1010YesNo
18265888COPOLYMER ADDITIVEJune 2023January 2026Allow3100NoNo
18328552DOUBLE-CHAMBER MICROCAPSULE FOR DRILLING FLUID AND SELF-REVERSING REVERSIBLE WATER-IN-OIL DRILLING FLUID AND PREPARATION METHOD THEREOFJune 2023January 2024Allow811NoNo
18038092PROCESS FOR PREPARING AQUEOUS POLYMER DISPERSIONS IN A TUBULAR REACTORMay 2023December 2025Allow3100NoNo
18200397LOW GLASS TRANSITION TEMPERATURE POLYMER LATEX DRAG REDUCING AGENTMay 2023September 2024Allow1501YesNo
18200414OIL SOLUBLE MOLYBDENUM COMPLEXES AS HIGH TEMPERATURE FOULING INHIBITORSMay 2023June 2025Allow2531NoNo
18312658Water Swellable Cement Sheath on Demand, with Sensing CapabilityMay 2023September 2024Abandon1720NoNo
18306674POLYMER GELS AND METHODS FOR MONITORING GEL INTEGRITY IN WELLBORESApril 2023November 2023Allow700NoNo
18302853OKRA COMPOSITION AS A SHALE SWELLING INHIBITOR IN WATER-BASED DRILLING FLUIDSApril 2023March 2025Allow2300YesNo
18187110MULTI-FUNCTIONAL COMPOSITIONS FOR ENHANCED OIL AND GAS RECOVERY AND OTHER PETROLEUM INDUSTRY APPLICATIONSMarch 2023March 2026Allow3650YesNo
18123912SOLID DRAG REDUCTION ADDITIVE AND METHODS OF USING SAMEMarch 2023March 2025Allow2421YesNo
18026973New Polymer Blends and Method for Making the SameMarch 2023March 2026Allow3600NoNo
18123012COMPOSITION THAT CAN BE USED TO DELAY THE FORMATION OF GAS HYDRATESMarch 2023August 2025Allow3031YesYes
18026481POLYETHYLENE GLYCOL DERIVATIVE, COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING BIOACTIVE POLYPEPTIDE CONJUGATE BY USING SAMEMarch 2023February 2026Allow3500NoNo
18181711DATE PALM LEAVES EXTRACT (DPLE) AS A SHALE SWELLING INHIBITOR IN WATER-BASED DRILLING FLUIDSMarch 2023March 2024Allow1201NoNo
18175072NANOGRAPHENE AND PREPARATION METHOD AND USE THEREOF AND OIL-BASED DRILLING FLUIDFebruary 2023November 2023Allow811NoNo
18023339RESIN COMPOSITION AND MOLDED ARTICLEFebruary 2023January 2026Allow3510NoNo
18042119POWER STORAGE DEVICE BINDER COMPOSITION, POWER STORAGE DEVICE ELECTRODE SLURRY, POWER STORAGE DEVICE ELECTRODE, AND POWER STORAGE DEVICEFebruary 2023February 2026Allow3610NoNo
18170889PETROLEUM COKE PROPPANT PARTICULATES AND METHODS RELATED THERETOFebruary 2023October 2025Abandon3251NoNo
18170189SELF-AGGREGATING PARTICLES FOR LOST CIRCULATION MATERIALS AND RELATED METHODFebruary 2023May 2024Allow1521YesNo
18041966SEALANT FILMFebruary 2023February 2026Abandon3610NoNo
18107700IN SITU EXPANDABLE TUBULARSFebruary 2023January 2025Abandon2421NoNo
18156089COMPOSITION FOR FORMING PROTECTIVE FILM AGAINST ALKALINE AQUEOUS HYDROGEN PEROXIDE, SUBSTRATE FOR PRODUCING SEMICONDUCTOR APPARATUS, METHOD FOR FORMING PROTECTIVE FILM, AND METHOD FOR FORMING PATTERNJanuary 2023December 2025Allow3521NoNo
18155430COMPOSITIONS FOR STIMULATION OPERATIONSJanuary 2023March 2025Abandon2641YesNo
18095718POLYMER-SAND NANOCOMPOSITE LOST CIRCULATION MATERIALJanuary 2023August 2023Allow711NoNo
18014439A THERMOPLASTIC COMPOSITION HAVING IMPROVED MECHANICAL PROPERTIESJanuary 2023October 2025Allow3321NoNo
18090343ORGANOPHILIC CLAYS AND DRILLING FLUIDS CONTAINING THEMDecember 2022July 2025Allow3110NoNo
18003442SCALE INHIBITORS AND RELATED CONTROLLED RELEASE PARTICLESDecember 2022January 2024Allow1211NoNo
18146205METHOD FOR FRACKING SUBTERRANEAN GEOLOGICAL FORMATION WITH SURFACTANT-CONTAINING FLUIDDecember 2022October 2023Allow1011NoNo
18086856Quaternary Ammonium Emulsion BreakersDecember 2022March 2024Allow1521NoNo
18069808AQUEOUS GELLABLE COMPOSITION AND PIPELINE PIGS OBTAINED THEREFROMDecember 2022August 2024Allow2012YesNo
18068887SYSTEMS AND TECHNIQUES FOR HEAT REMOVAL IN GAS PHASE POLYMERIZATIONDecember 2022February 2026Allow3811NoNo
18084770METHOD FOR PRODUCING HIGH QUALITY BARRIER PACKAGING USING FLUORINATIONDecember 2022February 2026Abandon3801NoNo
18067512SUPRAMOLECULAR STAR-SHAPED POLYMER WITH BETA-CD AS CORE AND PREPARATION METHODDecember 2022October 2023Allow1011NoNo
18010421POLYPROPYLENE COMPOSITIONDecember 2022June 2025Allow3000NoNo
18074149Fracturing Fluid with Superior Proppant Transport CapabilityDecember 2022March 2025Abandon2841NoNo
17928213PROCESS FOR PRODUCING ETHYLENE HOMO- AND COPOLYMERSNovember 2022October 2025Allow3510NoNo
17927523POLYVINYL ALCOHOL-BASED POLYMERNovember 2022August 2025Allow3310NoNo
17927581POLYVINYL ALCOHOL-BASED POLYMERNovember 2022October 2025Allow3510NoNo
17926822Aqueous Adhesive Composition, Manufacturing Method of the Same, Adhesive Member Manufactured Using the SameNovember 2022December 2025Allow3700NoNo
17984823COMPOSITIONS OF APHRON SEALING LOST CIRCULATION SPACERNovember 2022April 2024Allow1710NoNo
18053424TERTIARY AMINE-GRAFTED SILICA NANO-PLUGGING AGENT AND WATER-BASED DRILLING FLUIDSNovember 2022April 2023Allow500NoNo
17921520OXIDIZED POLYETHYLENE COMPOUNDS AND METHODS OF MAKING THE SAMEOctober 2022March 2026Allow4111YesNo
17921261REUSABLE NAIL TIPOctober 2022August 2025Allow3310NoNo
17921262METHOD FOR TREATING A SUBTERRANEAN FORMATION BY INJECTING AN AQUEOUS GELLING SOLUTION COMPRISING AN ALUMINATEOctober 2022September 2024Allow2310NoNo
17997007DENSITY AND CHEMICAL COMPOSITION CONTROL FOR POLYMER WITH GOOD STRESS CRACK PROPERTIESOctober 2022January 2026Allow3911NoNo
17920125PROCESS FOR MANUFACTURING WET STRENGTH RESINSOctober 2022January 2026Allow3910NoNo
17919414MELT FLOW ADDITIVE FOR POLYCARBONATES AND OTHER ENGINEERING RESINSOctober 2022October 2025Allow3610NoNo
17966516HIGH TEMPERATURE AND HIGH SALINITY-RESISTANT COMPLEMENTARILY RIGID-FLEXIBLE PLUGGING AGENT AND METHOD FOR PREPARING THE SAME AND WATER-BASED DRILLING FLUID AND USE THEREOFOctober 2022January 2024Allow1521NoNo
17938778PERMANGANATE BASED HYDROGEN SULFIDE SCAVENGING DRILLING FLUIDOctober 2022April 2024Allow1911NoNo
17938072SYSTEM FOR PROVIDING REAL-TIME PREDICTIVE CARBON DIOXIDE CORROSION RATE MODELLINGOctober 2022May 2025Allow3121NoNo
17916952METHOD FOR PREPARING SUPER ABSORBENT POLYMEROctober 2022October 2025Allow3710NoNo
17958750SYNERGISTIC SYSTEMS FOR BREAKING POLYMER VISCOSIFIED FLUIDSOctober 2022January 2025Abandon2831NoNo
17907363LONG-CHAIN BRANCHED ETHYLENE-BASED POLYMERSSeptember 2022October 2025Allow3710YesNo
17930843AQUEOUS FLUID COMPOSITIONS AND BARITE SCALE REMOVAL THEREWITHSeptember 2022October 2024Allow2521YesNo
17900822TIGHT OIL RESERVOIR CO2 FLOODING MULTI-SCALE CHANNELING CONTROL SYSTEM AND PREPARATION METHODAugust 2022February 2023Allow611NoNo
17898644ELECTROSPUN FILM, METHOD FOR MANUFACTURING THE SAME AND USE OF SUCH ELECTROSPUN FILMAugust 2022October 2025Allow3711YesNo
17893623ANTIMICROBIAL PLASTICAugust 2022November 2025Allow3920NoNo
17893720PROPPANT PARTICLES FORMED FROM SLURRY DROPLETS AND METHODS OF USEAugust 2022April 2024Abandon2021YesNo
17821436METHOD OF REACTING CO2 BY EMULSIFYING CEMENT AND USE IN OILWELL CEMENTINGAugust 2022March 2025Allow3031YesNo
17891160REVERSIBLE STRESS-RESPONSIVE MATERIAL, PREPARATION METHOD, AND USE THEREOFAugust 2022April 2025Allow3200YesNo
17799445CHLOROPRENE RUBBER COMPOSITIONAugust 2022January 2026Allow4120NoNo
17799058VINYL CHLORIDE RESIN PLASTICIZING AGENT, VINYL CHLORIDE RESIN COMPOSITION, AND MOLDED ARTICLE THEREOFAugust 2022February 2026Allow4220NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner BHUSHAN, KUMAR R.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
3
Examiner Affirmed
3
(100.0%)
Examiner Reversed
0
(0.0%)
Reversal Percentile
2.9%
Lower than average

What This Means

With a 0.0% 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
11
Allowed After Appeal Filing
1
(9.1%)
Not Allowed After Appeal Filing
10
(90.9%)
Filing Benefit Percentile
12.9%
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, 9.1% 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.

Examiner BHUSHAN, KUMAR R - Prosecution Strategy Guide

Executive Summary

Examiner BHUSHAN, KUMAR R works in Art Unit 1766 and has examined 248 patent applications in our dataset. With an allowance rate of 79.4%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 33 months.

Allowance Patterns

Examiner BHUSHAN, KUMAR R's allowance rate of 79.4% places them in the 48% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by BHUSHAN, KUMAR R receive 1.88 office actions before reaching final disposition. This places the examiner in the 45% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by BHUSHAN, KUMAR R is 33 months. This places the examiner in the 46% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +19.0% benefit to allowance rate for applications examined by BHUSHAN, KUMAR R. This interview benefit is in the 62% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 27.9% of applications are subsequently allowed. This success rate is in the 49% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 36.8% of cases where such amendments are filed. This entry rate is in the 56% percentile among all examiners. Strategic Recommendation: This examiner shows above-average receptiveness to after-final amendments. If your amendments clearly overcome the rejections and do not raise new issues, consider filing after-final amendments before resorting to an RCE.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 57.1% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 48% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 66.7% of appeals filed. This is in the 48% percentile among all examiners. Of these withdrawals, 83.3% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows below-average willingness to reconsider rejections during appeals. Be prepared to fully prosecute appeals if filed.

Petition Practice

When applicants file petitions regarding this examiner's actions, 72.7% are granted (fully or in part). This grant rate is in the 79% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 7% percentile). This examiner rarely makes examiner's amendments compared to other examiners. You should expect to make all necessary claim amendments yourself through formal amendment practice.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.0% of allowed cases (in the 7% percentile). This examiner rarely issues Quayle actions compared to other examiners. Allowances typically come directly without a separate action for formal matters.

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

    Relevant MPEP Sections for Prosecution Strategy

    • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
    • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
    • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
    • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
    • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
    • MPEP § 1214.07: Reopening prosecution after appeal

    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.