USPTO Examiner SINGH DAPINDER - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19236104VEHICLEJune 2025March 2026Allow900NoNo
19075369COMPRESSOR ASSEMBLIES INCLUDING LOWER COVERS HAVING MOUNTING FEET SKIRTS CONFIGURED FOR INCREASING MOUNTING FEET STIFFNESS AND RESISTANCE TO CRACK FORMATIONMarch 2025March 2026Allow1210NoNo
19063108COMMONLY MANUFACTURED ROTOR BLADEFebruary 2025December 2025Allow900NoNo
19057646WATER PUMPFebruary 2025May 2025Allow300NoNo
18996138INSTALLATION FOR PRODUCING ELECTRICITY OR MECHANICAL POWER, COMPRISING A COMBINED CYCLE GAS TURBINE, AND CO2 CAPTURE AND WATER ELECTROLYSIS UNITSJanuary 2025January 2026Allow1200NoNo
19012547SCAVENGE LOSS LIMITER FOR A ROTARY COMPRESSORJanuary 2025January 2026Allow1210NoNo
18879333FIXED SCROLL ASSEMBLY, SCROLL COMPRESSOR, AND METHOD FOR MACHINING FIXED SCROLL ASSEMBLYDecember 2024March 2026Allow1410NoNo
18877732VALVE FOR ROTARY FLUID DISPLACEMENT ASSEMBLY AND ROTARY FLUID DISPLACEMENT ASSEMBLY COMPRISING SAMEDecember 2024October 2025Allow1000NoNo
18977403MASTER-SLAVE HYBRID-ELECTRIC POWERTRAIN CONTROL ARCHITECTURE WITH SUPERVISORY POWER MANAGEMENT CONTROLDecember 2024May 2025Allow500NoNo
18872919SCROLL COMPRESSORDecember 2024December 2025Allow1210NoNo
18973714ELECTRIC COMPRESSORDecember 2024April 2025Allow400NoNo
18974613Handheld FanDecember 2024October 2025Allow1000NoNo
18972917INTERNAL ENGINE COMBUSTION SYSTEMDecember 2024March 2026Allow1520NoNo
18971392CRANKSHAFT ASSEMBLY FOR SCROLL DEVICESDecember 2024November 2025Allow1210NoNo
18966699Heat Driven Osmosis Water and Power GeneratorDecember 2024November 2025Allow1120YesNo
18956436CONSTANT FLOW PUMPNovember 2024November 2025Allow1200NoNo
18930989SYSTEMS AND METHODS FOR COMPENSATING NOX SENSOR MEASUREMENTS TO MEET SUFFICIENCY REQUIREMENTSOctober 2024November 2025Allow1220NoNo
18928944SCROLL COMPRESSOR AND METHOD FOR CONTROLLING SCROLL COMPRESSOROctober 2024July 2025Allow910NoNo
18921471MANIFOLD, A TURBOMACHINE INCLUDING SUCH A MANIFOLD, A TURBOCHARGER INCLUDING SUCH A TURBOMACHINE, AND AN INTERNAL COMBUSTION ENGINE INCLUDING SUCH A MANIFOLDOctober 2024July 2025Allow910NoNo
18914843EXHAUST SYSTEM AND COMPONENTS THEREOFOctober 2024June 2025Allow820YesNo
18856805COMPRESSOR AND ADDITIONAL OIL INJECTION SYSTEM HAVING SAMEOctober 2024January 2026Allow1510NoNo
18911412AFTERTREATMENT DEVICE AND ENGINEOctober 2024July 2025Allow910YesNo
18854638SCROLL COMPRESSOROctober 2024January 2026Allow1510NoNo
18904950SYSTEMS AND METHODS FOR MIGITATING COLD START EMISSIONS VIA ROTATION OF TURBOCHARGER TURBINEOctober 2024June 2025Allow810YesNo
18847503COMPRESSOR ASSEMBLY COMPRISING A MOTOR DRIVING ONE OR MORE COMPRESSOR ROTORSSeptember 2024March 2026Allow1810NoNo
18883940SCROLL COMPRESSOR AND REFRIGERATION DEVICESeptember 2024April 2025Allow710YesNo
18830753MOTOR, COMPRESSOR AND AIR CONDITIONERSeptember 2024August 2025Allow1100NoNo
18845125SCROLL COMPRESSORSeptember 2024July 2025Allow1010YesNo
18825096LOW COEFFICIENT OF EXPANSION ROTORS FOR BLOWERSSeptember 2024April 2025Allow810NoNo
18820571COLD START CATALYST BYPASS SYSTEMAugust 2024December 2024Allow400NoNo
18842099COMPENSATION MECHANISM FOR A DISPLACEMENT MACHINEAugust 2024October 2025Allow1410NoNo
188166993-DIMENSIONAL PUMP ROTOR PROFILEAugust 2024February 2025Allow600NoNo
18840543Gas Compressor and Gas Compression SystemAugust 2024July 2025Allow1110NoNo
18811487ELECTRIC WATER PUMPAugust 2024October 2025Allow1410NoNo
18839979GAS COMPRESSORAugust 2024August 2025Allow1210NoNo
18803329SYSTEMS AND METHODS FOR OPERATING PASSIVE NITROGEN OXIDE ADSORBERS IN EXHAUST AFTERTREATMENT SYSTEMSAugust 2024March 2025Allow710NoNo
18803687VISCOUS FLOW BLOWERAugust 2024February 2025Allow600NoNo
18799348AQUARIUM SYSTEM HAVING IMPROVED FLOW CONTROLLER AND METHODS OF USEAugust 2024December 2025Allow1711NoNo
18836795SCROLL COMPRESSORAugust 2024May 2025Allow910NoNo
18792986SYSTEM AND METHOD TO MAINTAIN HOT AFTERTREATMENT AT ENGINE IDLEAugust 2024August 2025Allow1320YesNo
18788059CONTROL UNIT FOR ENGINE SYSTEMJuly 2024December 2024Allow500NoNo
18727276ELECTRIC COMPRESSORJuly 2024October 2025Allow1510NoNo
18765844DOSING MODULE FOR USE IN AFTERTREATMENT SYSTEMS FOR INTERNAL COMBUSTION ENGINESJuly 2024September 2025Allow1400NoNo
18724051Turbine for an Exhaust Gas Turbocharger, in Particular of a Motor Vehicle, and Internal Combustion EngineJune 2024January 2025Allow700NoNo
18724182Electrical Power Generating SystemJune 2024February 2025Allow810NoNo
18722489POSITIVE DISPLACEMENT MACHINE BASED ON THE SPIRAL PRINCIPLEJune 2024November 2025Allow1710NoNo
18720299OIL SUPPLY DEVICE FOR COMPRESSOR, COMPRESSOR, AND REFRIGERATION EQUIPMENTJune 2024October 2025Allow1600NoNo
18737957VANE PUMP FEATURING FLUID LUBRICATION FOR AN IMPELLERJune 2024December 2025Allow1810NoNo
18737255FLUID TRANSFER PUMP AND METHOD OF OPERATIONJune 2024January 2026Allow2010NoNo
18735925ATTACHMENT AND SECURING DEVICE OF THE ROTOR OF A PERISTALTIC BLOOD PUMPJune 2024October 2025Allow1610NoNo
18734744SCREW PUMP AND ITS COMPONENTSJune 2024October 2025Allow1720YesNo
18716416COOLING DEVICE FOR REDUCING AGENT DOSING MODULEJune 2024September 2025Allow1520NoNo
18678222CONDENSATE PUMP ASSEMBLYMay 2024March 2025Abandon1010NoNo
18673361ENCLOSED AIR COMPRESSOR STRUCTURE FEATURING REMOTE FILTERINGMay 2024May 2025Allow1100NoNo
18667639Archimedes Gravity Energy PumpMay 2024July 2025Allow1400NoNo
18656749COMPRESSOR AND A DYNAMIC VORTEX DISK THEREOFMay 2024May 2025Allow1200NoNo
18656887FLUID MACHINE AND OPERATING METHOD THEREOFMay 2024September 2024Allow500NoNo
18707772RESIDUAL VOLTAGE CONTROLLER AND ELECTRIC COMPRESSOR INCLUDING THE SAMEMay 2024October 2025Allow1810NoNo
18552590DRIVE SYSTEM FOR A MULTI-STAGE SCREW COMPRESSORApril 2024June 2025Allow2020YesNo
18609310ELECTRIC COMPRESSOR WITH SCROLL BACKPRESSURE SYSTEMMarch 2024December 2025Allow2110YesNo
18692679AMMONIA SYNTHESIS DEVICEMarch 2024November 2024Allow810NoNo
18585174CONSTANT-FLOW PULSELESS ROTARY-VANE-TYPE DISPLACEMENT MACHINEFebruary 2024November 2024Allow910NoNo
18586046UNLOADING DEVICE AND AIR COMPRESSORFebruary 2024July 2025Allow1710NoNo
18584133COMPRESSOR ASSEMBLIES INCLUDING LOWER COVERS HAVING MOUNTING FEET SKIRTS CONFIGURED FOR INCREASING MOUNTING FEET STIFFNESS AND RESISTANCE TO CRACK FORMATIONFebruary 2024March 2025Allow1220NoNo
18685479SPIRAL VALVE FOR SCREW CAPACITY CONTROLFebruary 2024October 2024Allow810NoNo
18581865SCAVENGE LOSS LIMITER FOR A ROTARY COMPRESSORFebruary 2024September 2024Allow700NoNo
18441763SYSTEMS AND METHODS FOR MANAGING THE TEMPERATURE OF AN AFTERTREATMENT SYSTEMFebruary 2024September 2025Allow1910YesNo
18439845DRIVE SYSTEMFebruary 2024September 2024Allow710NoNo
18682833OIL PUMP NOT REQUIRING CHANGING POSITIONS OF SUCTION PORT AND DISCHARGE PORT ACCORDING TO FORWARD ROTATION AND REVERSE ROTATIONFebruary 2024February 2025Allow1210NoNo
18437235SYSTEM AND METHOD FOR INJECTING CONDENSATE IN CYLINDER OF A RECIPROCATING ENGINEFebruary 2024December 2025Allow2320YesNo
18682050RADIAL PISTON ROTARY MACHINEFebruary 2024July 2025Abandon1720NoNo
18430146BEARING COOLING FLOW PATH FOR A CABIN AIR COMPRESSORFebruary 2024October 2025Allow2010YesNo
18427943COMPUTER-IMPLEMENTED METHOD FOR CONTROLLING A REGENERATION EVENTJanuary 2024May 2024Allow400NoNo
18291362EXHAUST GAS AFTERTREATMENT SYSTEMJanuary 2024January 2025Allow1110YesNo
18291462METHOD FOR POWERING A HEATING DEVICE FOR A CATALYTIC CONVERTERJanuary 2024August 2024Allow700NoNo
18417439METHODS AND SYSTEMS FOR A FUEL OPERATED HEATERJanuary 2024August 2025Allow1910NoNo
18415319REVERSE CONVECTION POWER GENERATIONJanuary 2024October 2025Allow2120NoNo
18579887ELECTRIC COMPRESSORJanuary 2024March 2025Allow1410NoNo
18409652COMMONLY MANUFACTURED ROTOR BLADEJanuary 2024November 2024Allow1010YesNo
18406366ELECTRIC AIR COMPRESSOR CONTROLJanuary 2024September 2025Allow2010NoNo
18404022SCROLL COMPRESSORJanuary 2024April 2024Allow400NoNo
18403438SYSTEMS AND METHODS FOR OPERATING PASSIVE NITROGEN OXIDE ADSORBERS IN EXHAUST AFTERTREATMENT SYSTEMSJanuary 2024May 2024Allow400NoNo
18402710Engine DeviceJanuary 2024December 2024Allow1210NoNo
18399667COMPRESSOR WITH IMPROVED STRUCTURE FOR EASY INSTALLATIONDecember 2023August 2024Allow810NoNo
18573467SCROLL COMPRESSOR AND METHOD FOR CONTROLLING SCROLL COMPRESSORDecember 2023September 2024Allow910NoNo
18544510ELECTRIC TURBOCHARGER EMISSIONS CONTROLDecember 2023September 2024Allow910NoNo
18536449TURBFAN ENGINEDecember 2023September 2025Allow2110NoNo
18567813HYDRAULIC PUMP UNIT HAVING KNURLED CONNECTION OF A PILLOW BLOCK TO A HOUSINGDecember 2023April 2025Allow1610NoNo
18512403EXHAUST SYSTEM AND COMPONENTS THEREOFNovember 2023April 2024Allow510YesNo
18561268ENGINE DIAGNOSIS SYSTEM, ENGINE DIAGNOSIS METHOD, PROGRAM, DATA RELAY DEVICE, AND DATA ANALYSIS DEVICENovember 2023July 2025Abandon2020NoNo
18507451TURBOCHARGED COMRPESSORNovember 2023August 2024Allow910NoNo
18496023COLD START CATALYST BYPASS SYSTEMOctober 2023July 2025Abandon2130NoNo
18495327HYDRAULIC DEVICE, HYDRAULIC MOTOR AND CONSTRUCTION MACHINEOctober 2023June 2025Allow2020YesNo
18491519EXHAUST ASSEMBLIES AND VEHICLES INCLUDING AN EXHAUST ASSEMBLYOctober 2023February 2024Allow400NoNo
18491436BIDIRECTIONAL, LINEAR AND BINARY, SEGMENTED ANTAGONISTIC SERVOMECHANISM-BASED SHAPE MEMORY ALLOY (SMA) ACTUATOROctober 2023July 2024Allow910NoNo
18556322VENTURI DEVICE WITH FORCED INDUCTIONOctober 2023September 2025Allow2310NoNo
18490133METHOD FOR CONTROLLING THE OPERATION OF AN ENGINE SYSTEMOctober 2023May 2024Allow700NoNo
18287373ELEMENT FOR COMPRESSING A GAS AND METHOD FOR CONTROLLING SUCH ELEMENTOctober 2023November 2024Allow1310YesNo
18488338METHOD OF OPERATING A REDUCING AGENT INJECTOROctober 2023September 2024Allow1120NoNo
18488094PROCESS FOR INCREASING MASS FLOW OF AN EXHAUST GAS THROUGH A CATALYTIC CONVERTEROctober 2023November 2024Allow1310YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner SINGH, DAPINDER.

Strategic Value of Filing an Appeal

Total Appeal Filings
5
Allowed After Appeal Filing
3
(60.0%)
Not Allowed After Appeal Filing
2
(40.0%)
Filing Benefit Percentile
89.5%
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, 60.0% 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

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

Examiner SINGH, DAPINDER - Prosecution Strategy Guide

Executive Summary

Examiner SINGH, DAPINDER works in Art Unit 3746 and has examined 340 patent applications in our dataset. With an allowance rate of 90.0%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 21 months.

Allowance Patterns

Examiner SINGH, DAPINDER's allowance rate of 90.0% places them in the 73% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by SINGH, DAPINDER receive 1.12 office actions before reaching final disposition. This places the examiner in the 12% percentile for office actions issued. This examiner issues significantly fewer office actions than most examiners.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by SINGH, DAPINDER is 21 months. This places the examiner in the 92% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +10.9% benefit to allowance rate for applications examined by SINGH, DAPINDER. This interview benefit is in the 45% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 38.0% of applications are subsequently allowed. This success rate is in the 87% percentile among all examiners. Strategic Insight: RCEs are highly effective with this examiner compared to others. If you receive a final rejection, filing an RCE with substantive amendments or arguments has a strong likelihood of success.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 41.5% of cases where such amendments are filed. This entry rate is in the 63% 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.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 100.0% of appeals filed. This is in the 99% percentile among all examiners. Of these withdrawals, 25.0% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner frequently reconsiders rejections during the appeal process compared to other examiners. Per MPEP § 1207.01, all appeals must go through a mandatory appeal conference. Filing a Notice of Appeal may prompt favorable reconsideration even before you file an Appeal Brief.

Petition Practice

When applicants file petitions regarding this examiner's actions, 52.2% are granted (fully or in part). This grant rate is in the 52% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 44% percentile). This examiner makes examiner's amendments less often than average. You may need to make most claim amendments yourself.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 2.0% of allowed cases (in the 68% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).

Prosecution Strategy Recommendations

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

  • RCEs are effective: This examiner has a high allowance rate after RCE compared to others. If you receive a final rejection and have substantive amendments or arguments, an RCE is likely to be successful.
  • Appeal filing as negotiation tool: This examiner frequently reconsiders rejections during the appeal process. Filing a Notice of Appeal may prompt favorable reconsideration during the mandatory appeal conference.

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.