USPTO Examiner KANG EDWIN G - Art Unit 3741

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19190948FUELING PASSAGE ARRAY SEALING SYSTEM AND METHOD OF USEApril 2025July 2025Allow300NoNo
18990975COMBUSTION LINERDecember 2024March 2026Allow1411YesNo
18971137JET ENGINEDecember 2024March 2025Allow300YesNo
18916983PROPULSION SYSTEM COMPRISING A HYDROGEN-BURNING GAS TURBINE ENGINEOctober 2024September 2025Allow1110YesNo
18917649COMBUSTOR NOZZLE, COMBUSTOR, AND GAS TURBINE INCLUDING SAMEOctober 2024March 2026Allow1720YesNo
18813935ACCELERATING TURBINE ENGINE ROTATING STRUCTURE WITH COMPRESSED AIRAugust 2024November 2025Allow1520YesNo
18753165HEAT EXCHANGE BYPASSJune 2024January 2026Abandon1921YesNo
18750320METHOD OF OPERATING A GAS TURBINE ENGINE AT A LOW POWER CONDITIONJune 2024September 2025Abandon1410NoNo
18712427GAS TURBINE PLANT, METHOD FOR OPERATING SAME, AND METHOD FOR MODIFYING SAMEMay 2024March 2025Allow1001YesNo
18652143COMBUSTOR APPARATUSMay 2024December 2025Abandon1920YesNo
18650224COMBUSTION LINER FOR GAS TURBINE ENGINEApril 2024February 2026Allow2230YesNo
18649715GAS TURBINE ADAPTIVE SECONDARY FUEL FILLING PROFILEApril 2024April 2025Allow1101YesNo
18436326BLEED-OFF ASSEMBLY INTAKE DEVICE FOR AN AIRCRAFT PROPULSION SYSTEMFebruary 2024November 2025Allow2120YesNo
18433665THERMOPHOTOVOLTAIC ENERGY CONVERSION IN GAS TURBINE ENGINEFebruary 2024January 2026Abandon2420NoNo
18402414NOZZLE ASSEMBLY, COMBUSTOR AND GAS TURBINE COMPRISING THE SAMEJanuary 2024December 2025Allow2430YesNo
18401568GAS TURBINE COMBUSTOR WITH MULTIPLE FUEL STAGES AND METHOD OF OPERATIONDecember 2023January 2026Allow2530YesNo
18401584COMBUSTOR HEAD END SECTION WITH INTEGRATED COOLING SYSTEMDecember 2023February 2026Allow2630YesNo
18545506CONTINUOUS IGNITION DEVICE EXHAUST MANIFOLDDecember 2023February 2026Abandon2621YesNo
18494322DILUTION HORN PAIR FOR A GAS TURBINE ENGINE COMBUSTOROctober 2023August 2025Allow2220YesNo
18234177EXHAUST NOZZLE AND A METHOD OF OPERATING AN EXHAUST NOZZLEAugust 2023January 2026Allow2931YesNo
18228269HEAT EXCHANGER WITH INLET AND OUTLET TURNING VANES FOR USE IN GAS TURBINE ENGINESJuly 2023December 2025Allow2831YesNo
18337699CONTROL OF FUEL TEMPERATUREJune 2023January 2026Abandon3150YesNo
18337545GAS TURBINE OPERATIONJune 2023October 2025Abandon2840YesNo
18337477COMBUSTOR RE-LIGHT PROCEDUREJune 2023February 2026Abandon3250YesNo
18252833METHOD AND ARCHITECTURE FOR SUPPLYING AIR TO AN AUXILIARY POWER UNIT OF AN AIRCRAFTMay 2023December 2024Allow1920YesNo
18310107ROTATABLE HEAT EXCHANGER FOR A GAS TURBINE ENGINEMay 2023October 2025Abandon3030NoNo
18251290AIRCRAFT DUAL-FLOW TURBINE ENGINE ASSEMBLY, THE ASSEMBLY BEING EQUIPPED WITH INCIDENCE-CONTROLLED AIR DISCHARGE FINSMay 2023August 2025Allow2720YesYes
18309262COMBUSTOR ASSEMBLY FOR A TURBINE ENGINEApril 2023March 2025Allow2320YesNo
18034119COMBUSTION DEVICE HAVING A FLAMELESS COMBUSTION CHAMBER, USE OF SUCH A DEVICE AND ELECTRICITY PRODUCTION OR ENERGY COGENERATION APPARATUS COMPRISING SUCH A DEVICEApril 2023January 2024Allow900YesNo
18129238FUEL SUPPLY PIPE ASSEMBLY, GAS TURBINE COMBUSTOR, AND GAS TURBINEMarch 2023March 2024Allow1110YesNo
18120183RADIALLY ORIENTED INTERNALLY MOUNTED CONTINUOUS IGNITION DEVICEMarch 2023May 2024Allow1420YesNo
18025373TURBORAMJET ENGINEMarch 2023October 2025Abandon3240YesNo
18117127COMBUSTOR AND GAS TURBINEMarch 2023December 2025Abandon3341YesNo
18113446TURBINE ENGINE FUEL INJECTOR ASSEMBLY WITH ANNULAR FUEL OUTLETFebruary 2023May 2025Allow2740YesYes
18105012COMBUSTOR WITH FUEL PLENUM AND EXTENDING MIXING PASSAGESFebruary 2023December 2025Allow3540NoYes
18158979FUEL NOZZLESJanuary 2023July 2024Abandon1720NoNo
18152903AIRCRAFT PROPULSION SYSTEMJanuary 2023April 2025Allow2731YesNo
18093044COMPONENT FOR A GAS TURBINE ENGINEJanuary 2023August 2024Abandon1920NoNo
18149895REHEAT ASSEMBLY FOR GAS TURBINE ENGINEJanuary 2023February 2025Abandon2640YesNo
18092106SYSTEM AND METHOD HAVING FLUID INJECTORS FOR ISOTHERMAL EXPANSION IN TURBINE STAGE OF GAS TURBINE ENGINEDecember 2022October 2025Allow3320YesNo
18067367Igniter Port Retention SystemDecember 2022June 2024Abandon1820YesNo
17928771FUEL INJECTOR, COMBUSTOR INCLUDING THE FUEL INJECTOR, AND GAS TURBINE INCLUDING THE COMBUSTORNovember 2022January 2025Allow2530YesNo
17980263MULTITUBE PILOT INJECTOR HAVING A FLAME ANCHOR FOR A GAS TUBINE ENGINENovember 2022April 2025Allow2920YesNo
17980273MULTITUBE PILOT INJECTOR HAVING A SPLIT AIRFLOW FOR A GAS TURBINE ENGINENovember 2022January 2024Allow1420YesNo
17976413GAS TURBINE ENGINE COMPONENT WITH INTEGRAL HEAT EXCHANGEROctober 2022July 2025Allow3250YesNo
17803601Pulsed Supersonic Air-Turbine Engine with Speed ControlSeptember 2022August 2023Allow1210YesNo
17891756FUEL ASSEMBLY FOR A GAS TURBINE ENGINEAugust 2022November 2023Allow1511YesNo
17798860TURBOFAN ENGINEAugust 2022January 2024Abandon1710NoNo
17758997FUEL SUPPLY CIRCUIT FOR A COMBUSTION CHAMBER OF A TURBOMACHINEJuly 2022October 2023Allow1520YesNo
17861878EFFUSION COOLING FOR DILUTION/QUENCH HOLE EDGES IN COMBUSTOR LINER PANELSJuly 2022July 2024Allow2430YesNo
17835525CONTINUOUS IGNITION DEVICE EXHAUST MANIFOLDJune 2022September 2023Allow1620YesNo
17740484DRY LOW NOx STAGED COMBUSTION SYSTEMMay 2022July 2024Allow2600YesNo
17662535DIFFUSER WITH PASSLETSMay 2022June 2025Allow3851YesNo
17755306SYSTEM AND METHOD FOR OPERATING A COMBUSTOR WITH MULTIPLE LIQUID FUELSApril 2022June 2025Allow3741YesNo
17655679BURNER HEADMarch 2022October 2024Abandon3141YesNo
17696484METHODS AND APPARATUS TO OPERATE A GAS TURBINE ENGINE WITH HYDROGEN GASMarch 2022July 2025Allow4050YesYes
17686759AIRCRAFT HAVING AN ENGINE AND A COOLING SYSTEMMarch 2022October 2023Abandon2020NoNo
17686911TORCH IGNITER COOLING SYSTEMMarch 2022May 2023Allow1410YesNo
17639762GAS TURBINE COMBUSTOR, GAS TURBINE, AND COMBUSTION METHOD FOR OIL FUELMarch 2022April 2025Abandon3840YesNo
17676949TURBINE ENGINE EXHAUST DUCT SYSTEM AND METHODS FOR NOISE DAMPENING AND ATTENUATIONFebruary 2022January 2025Allow3440YesNo
17581358CONNECTING FUEL INJECTORS AND NOZZLES TO MANIFOLDSJanuary 2022January 2025Abandon3641YesNo
17568359SYSTEMS AND METHODS FOR PROVIDING OUTPUT PRODUCTS TO A COMBUSTION CHAMBER OF A GAS TURBINE ENGINEJanuary 2022March 2024Allow2630YesNo
17562100MICRO-MIXER BUNDLE ASSEMBLY, AND COMBUSTOR AND GAS TURBINE HAVING SAMEDecember 2021October 2023Allow2220YesNo
17561962INJECTION NOZZLE, COMBUSTOR INCLUDING SAME NOZZLE, AND GAS TURBINE INCLUDING SAME COMBUSTORDecember 2021January 2024Allow2531YesNo
17554853GAS TURBINE ENGINE SYSTEM WITH MIXED FLOW AUXILIARY POWER UNITDecember 2021February 2024Allow2630YesNo
17533682FUEL INJECTOR SYSTEMS FOR TORCH IGNITERSNovember 2021November 2023Allow2420YesNo
17609895FUEL GAS SUPPLY DEVICE AND METHODNovember 2021January 2025Abandon3940NoNo
17498705SYSTEM AND METHOD FOR SWEEPING LEAKED FUEL IN GAS TURBINE SYSTEMOctober 2021September 2023Allow2320YesNo
17492783SYSTEM FOR COOLING AN AIRCRAFT TURBOJET ENGINEOctober 2021February 2025Abandon4130YesNo
17487894AIRCRAFT FUEL NOZZLESeptember 2021March 2026Allow5340YesYes
17485567LASER IGNITION DEVICE, SPACE ENGINE, AND AIRCRAFT ENGINESeptember 2021February 2024Abandon2920NoNo
17475440FUEL SYSTEM WITH ECOLOGY FUNCTIONSeptember 2021February 2024Allow2920YesNo
17406655START-UP SEQUENCE FOR GASEOUS FUEL ENGINEAugust 2021September 2023Abandon2420NoNo
17392653EXCESS FUEL FLOW TO DRIVE TURBINEAugust 2021March 2025Allow4320YesYes
17388618GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTJuly 2021April 2024Abandon3230YesNo
17367440COMBUSTOR NOZZLE, AND COMBUSTOR AND GAS TURBINE INCLUDING THE SAMEJuly 2021June 2023Allow2430YesNo
17350652COMBUSTOR HAVING FUEL SWEEPING STRUCTURESJune 2021May 2022Allow1100YesNo
17346768GAS TURBINE FACILITYJune 2021October 2023Abandon2821NoNo
17333986SUPPLEMENTAL THRUST SYSTEM WITH ROTATING DETONATION COMBUSTORMay 2021July 2024Allow3841YesNo
17329566FUEL MANIFOLDSMay 2021February 2023Allow2010YesNo
17327177PILOT FUEL NOZZLE ASSEMBLY WITH VENTED VENTURIMay 2021February 2026Allow5770YesYes
17323088PASSIVE FUEL COUPLED DYNAMIC MITIGATION DEVICEMay 2021July 2024Abandon3740YesNo
17317102INTEGRAL FUEL-NOZZLE AND MIXER WITH ANGLED JET-IN-CROSSFLOW FUEL INJECTIONMay 2021July 2024Abandon3850NoNo
17244275Gas Turbine CombustorApril 2021January 2024Abandon3230YesNo
17242462FUEL INJECTION DEVICE, NOZZLE, AND COMBUSTOR INCLUDING THE SAMEApril 2021January 2024Allow3340YesNo
17228433DILUTION HORN PAIR FOR A GAS TURBINE ENGINE COMBUSTORApril 2021March 2024Abandon3531NoNo
17216952AIRFOIL WITH RADIALLY-SPACED RIBS AND INTERLOCKING TABMarch 2021July 2022Allow1610YesNo
17194917NOZZLE WITH JET GENERATOR CHANNEL FOR FUEL TO BE INJECTED INTO A COMBUSTION CHAMBER OF AN ENGINEMarch 2021April 2023Abandon2520NoNo
17193369VANE ARC SEGMENT WITH RADIALLY PROJECTING FLANGESMarch 2021February 2023Allow2420YesYes
17173429FLOWPATH ASSEMBLY WITH COMPOSITE TUBE ARRAYFebruary 2021April 2025Abandon5041YesNo
17166551FUEL INJECTION DEVICE FOR GAS TURBINEFebruary 2021February 2023Abandon2420YesYes
17136131MAGNETIC TURBOMACHINE SEALING ARRANGEMENTDecember 2020February 2022Allow1401YesNo
17132066SYSTEMS AND METHODS UTILIZING TURBINE COMPRESSOR DISCHARGE FOR HYDROSTATIC MANIFOLD PURGEDecember 2020September 2023Allow3340YesNo
17127250FUEL INJECTOR SYSTEMS FOR TORCH IGNITERSDecember 2020September 2021Allow1000YesNo
17125072RADIALLY ORIENTED INTERNALLY MOUNTED CONTINUOUS IGNITION DEVICEDecember 2020July 2023Abandon3130NoNo
17123741CONTINUOUS IGNITION DEVICE EXHAUST MANIFOLDDecember 2020March 2022Allow1510YesNo
17123778HIGH-PRESSURE CONTINUOUS IGNITION DEVICEDecember 2020September 2021Allow910YesNo
17115877COMBUSTOR MIXING ASSEMBLYDecember 2020May 2023Allow2921YesNo
16972777POWER PLANT WITH NATURAL GAS REGASIFICATIONDecember 2020January 2024Abandon3750NoNo
16972765EXPANDED GAS TURBINE PROCESS WITH NATURAL GAS REGASIFICATIONDecember 2020November 2021Allow1110YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner KANG, EDWIN G.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
26
Examiner Affirmed
23
(88.5%)
Examiner Reversed
3
(11.5%)
Reversal Percentile
24.3%
Lower than average

What This Means

With a 11.5% 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
44
Allowed After Appeal Filing
6
(13.6%)
Not Allowed After Appeal Filing
38
(86.4%)
Filing Benefit Percentile
16.5%
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, 13.6% 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 KANG, EDWIN G - Prosecution Strategy Guide

Executive Summary

Examiner KANG, EDWIN G works in Art Unit 3741 and has examined 296 patent applications in our dataset. With an allowance rate of 66.2%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 36 months.

Allowance Patterns

Examiner KANG, EDWIN G's allowance rate of 66.2% places them in the 27% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by KANG, EDWIN G receive 2.50 office actions before reaching final disposition. This places the examiner in the 73% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by KANG, EDWIN G is 36 months. This places the examiner in the 37% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +73.3% benefit to allowance rate for applications examined by KANG, EDWIN G. This interview benefit is in the 99% percentile among all examiners. Recommendation: Interviews are highly effective with this examiner and should be strongly considered as a prosecution strategy. Per MPEP § 713.10, interviews are available at any time before the Notice of Allowance is mailed or jurisdiction transfers to the PTAB.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 22.1% of applications are subsequently allowed. This success rate is in the 27% 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 15.9% of cases where such amendments are filed. This entry rate is in the 17% percentile among all examiners. Strategic Recommendation: This examiner rarely enters after-final amendments compared to other examiners. You should generally plan to file an RCE or appeal rather than relying on after-final amendment entry. Per MPEP § 714.12, primary examiners have discretion in entering after-final amendments, and this examiner exercises that discretion conservatively.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 42.9% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 39% 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 40.9% of appeals filed. This is in the 8% percentile among all examiners. Of these withdrawals, 22.2% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 70.6% are granted (fully or in part). This grant rate is in the 77% 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 43% 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 0.0% of allowed cases (in the 46% percentile). This examiner issues Quayle actions less often than average. Allowances may 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:

  • Prioritize examiner interviews: Interviews are highly effective with this examiner. Request an interview after the first office action to clarify issues and potentially expedite allowance.
  • Plan for RCE after final rejection: This examiner rarely enters after-final amendments. Budget for an RCE in your prosecution strategy if you receive a final rejection.

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.