USPTO Examiner KIM CRAIG SANG - Art Unit 3741

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18990685GEARBOX ASSEMBLY WITH LUBRICANT EXTRACTION VOLUME RATIODecember 2024June 2025Allow510YesNo
18990706GEARBOX ASSEMBLY WITH LUBRICANT EXTRACTION VOLUME RATIODecember 2024February 2025Allow200NoNo
18852382SUSPENSION OF A TRIPLE-FLOW AIRCRAFT TURBINE ENGINESeptember 2024June 2025Allow800NoNo
18850333COMBUSTOR AND GAS TURBINESeptember 2024May 2025Allow800NoNo
18753092OPERATING A GAS TURBINE ENGINEJune 2024October 2024Allow410NoNo
18753081FUEL CHARACTERISTICJune 2024April 2025Allow930NoNo
18616576PROPULSION ASSEMBLY COMPRISING AT LEAST ONE REGULATED VENTILATION DEVICE, AIRCRAFT COMPRISING SUCH A PROPULSION ASSEMBLYMarch 2024June 2025Allow1420NoNo
18601267THRUST REVERSER BLOCKER DOOR WITH FAIRINGMarch 2024February 2025Allow1110NoNo
18601959HEAT TRANSFER DEVICE WITH NESTED LAYERS OF HELICAL FLUID CHANNELSMarch 2024January 2025Allow1110NoNo
18594975ENGINE NACELLE ANTI-ICE SWIRL SYSTEM WITH UNSTEADY FLUID FLOWMarch 2024December 2024Allow910YesNo
18434128GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTFebruary 2024March 2025Allow1410YesNo
18434047GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTFebruary 2024February 2025Allow1310YesNo
18432285GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTFebruary 2024September 2024Allow810NoNo
18432315GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTFebruary 2024June 2025Allow1710NoNo
18430907GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTFebruary 2024February 2025Allow1310YesNo
18425207LINE REPLACEABLE FUEL INJECTOR PANELS WITH SINGLE HATCH INSTALLATIONJanuary 2024March 2025Allow1420NoNo
18407648WATER PRESSURE AND QUANTITY MONITORING FOR HYDROGEN STEAM INJECTED AND INTER-COOLED TURBINE ENGINEJanuary 2024January 2025Allow1310NoNo
18404364GAS TURBINE ENGINE AND FUEL CELL ASSEMBLYJanuary 2024December 2024Allow1110NoNo
18404083GAS TURBINE ENGINE AND FUEL CELL ASSEMBLYJanuary 2024November 2024Allow1110NoNo
18575948GAS TURBINE FACILITY AND METHOD FOR SUPPRESSING DISCHARGE OF AMMONIA FROM GAS TURBINE FACILITYJanuary 2024October 2024Allow900NoNo
18394655VARIABLE AREA NOZZLE ASSEMBLY FOR AN AIRCRAFT PROPULSION SYSTEMDecember 2023June 2024Allow500NoNo
18540064MULTI-VOLUME ACOUSTIC RESONATOR FOR ROCKET ENGINEDecember 2023July 2024Allow700NoNo
18525046BLEED VALVE ASSEMBLY FOR AIRCRAFT ENGINESNovember 2023October 2024Allow1010NoNo
18522393HYBRID AIRCRAFT POWER PLANTNovember 2023November 2024Allow1110NoNo
18523042AUXILIARY POWER SYSTEMNovember 2023January 2025Allow1410NoNo
18518811GAS TURBINE COMBUSTORNovember 2023August 2024Allow910NoNo
18515074TORCH ACTIVE CONTROL SYSTEMNovember 2023October 2024Allow1110NoNo
18560510THRUST REVERSER WITH CASCADES OF MOBILE VANES, COMPRISING A REAR STRUCTURE SUPPORTING THE CASCADES OF VANES AND INCORPORATING AN ACOUSTIC FUNCTIONNovember 2023August 2024Allow920NoNo
18503751COMBUSTOR FOR A GAS TURBINE ENGINENovember 2023April 2024Allow500NoNo
18494181EXHAUST NOZZLE ASSEMBLY, PROPULSION SYSTEM EMPLOYING THE EXHAUST NOZZLE ASSEMBLY, AND AIRCRAFT EMPLOYING THE PROPULSION SYSTEMOctober 2023November 2024Allow1310NoNo
18377406MAIN MIXER IN AN AXIAL STAGED COMBUSTOR FOR A GAS TURBINE ENGINEOctober 2023April 2025Allow1820NoNo
18469251METHOD OF CONTROLLING A DEVICE FOR SUPPLYING A PROPULSION SYSTEM OF AN AIRCRAFT AND SUPPLY DEVICE ENABLING EXECUTION OF THAT METHODSeptember 2023May 2025Abandon2020NoNo
18367302FUEL CONTAINMENT STRUCTURE FOR ENGINE FUEL DELIVERY SYSTEMSeptember 2023May 2024Allow800NoNo
18244780GAS TURBINE ENGINESeptember 2023July 2024Allow1010NoNo
18463793TURBINE ENGINE HAVING A BLEED SYSTEMSeptember 2023September 2024Allow1210NoNo
18239459SYSTEMS AND METHOD FOR DETECTING AND RESPONDING TO ICING CONDITIONS IN GAS TURBINE ENGINESAugust 2023July 2024Allow1110NoNo
18454160HEAT EXCHANGER DIFFERENTIAL OIL TEMPERATURE DETERMINATIONAugust 2023December 2024Allow1510NoNo
18452203TURBINE ENGINE WITH FAN BYPASS WATER INJECTION TO AUGMENT THRUSTAugust 2023August 2024Allow1210NoNo
18233502THERMAL MANAGEMENT SYSTEM FOR AN AIRCRAFTAugust 2023March 2025Allow1910NoNo
18233607THERMAL MANAGEMENT SYSTEM FOR AN AIRCRAFTAugust 2023March 2025Allow1910YesNo
18446532TRAILING EDGE COOLING CIRCUITAugust 2023February 2025Allow1820NoNo
18228424TRANSMISSION ASSEMBLY FOR AN AIRCRAFT ENGINE ASSEMBLY AND ARCHITECTURE FOR CONTROLLING SAMEJuly 2023July 2024Allow1210YesNo
18360935TURBINE ENGINE INCLUDING AN ENGINE STARTER ASSEMBLYJuly 2023March 2025Allow2020YesNo
18360933ELECTRIC STARTER VERIFICATION DURING GAS-TURBINE ENGINE BARRINGJuly 2023August 2024Allow1310NoNo
18224430AIRCRAFT PROPULSION SYSTEM WITH INLET AIR MONITORING SYSTEM AND METHODJuly 2023November 2024Allow1610NoNo
18337749GAS TURBINE OPERATIONJune 2023November 2023Allow510YesNo
18211092GAS TURBINE ENGINE WITH WATER RECOVERY SYSTEMJune 2023June 2025Allow2440YesNo
18211083GAS TURBINE ENGINE WITH HYDROGEN FUEL SYSTEMJune 2023October 2024Allow1620NoNo
18334009GAS TURBINE ENGINE WITH AIR/OIL COOLER HAVING AN AIRFLOW CONTROL BAFFLEJune 2023January 2024Allow800NoNo
18039800METHOD FOR PRODUCING ELECTRICAL AND/OR MECHANICAL ENERGY FOR A CONSUMER SYSTEM AND ASSOCIATED PRODUCTION SYSTEMJune 2023January 2025Allow2020YesNo
18202727SELECTIVE POWER DISTRIBUTION FOR AN AIRCRAFT PROPULSION SYSTEMMay 2023May 2024Allow1210NoNo
18318460JET PUMP SYSTEMMay 2023October 2024Allow1710YesNo
18316505HYDROGEN FUELED TURBINE ENGINE PINCH POINT WATER SEPARATORMay 2023July 2024Allow1410NoNo
18140708RETAINER AND METHOD FOR DISASSEMBLING AN AIRCRAFT ENGINEApril 2023November 2024Allow1811NoNo
18250964TURBOMACHINE TURBINE ASSEMBLYApril 2023September 2024Allow1620YesNo
18307938REVERSE FLOW GAS TURBINE ENGINE HAVING ELECTRIC MACHINEApril 2023September 2023Allow500NoNo
18138508PLANETARY GEARBOX FOR GAS TURBINE ENGINEApril 2023July 2024Allow1520NoNo
18186159Plasma Ignition and Combustion Assist System for Gas Turbine EnginesMarch 2023November 2024Allow2010YesNo
18186161Plasma Ignition and Combustion Assist System for Gas Turbine EnginesMarch 2023April 2024Allow1310NoNo
18184755AIRCRAFT ENGINE FLUID SYSTEM WITH SHUT-OFF VALVEMarch 2023April 2024Allow1310NoNo
18183758INTEGRAL ENGINE INLET FRAME AIR-COOLED OIL COOLING APPARATUSMarch 2023October 2024Allow1920YesNo
18176784COMBINED CYCLESMarch 2023July 2024Allow1610NoNo
18109593LINE REPLACEABLE FUEL INJECTOR PANELS WITH SINGLE HATCH INSTALLATIONFebruary 2023October 2024Allow2010NoNo
18168173HEAT EXCHANGER WITH BYPASS VALVE AND THERMAL FUSEFebruary 2023January 2024Allow1101YesNo
18167643JET ENGINE THERMAL TRANSPORT BUS PUMPSFebruary 2023July 2023Allow500NoNo
18104990COMBUSTOR WITH CENTRAL FUEL INJECTION AND DOWNSTREAM AIR MIXINGFebruary 2023June 2024Allow1620YesYes
18104935COMBUSTOR WITH FUEL PLENUM WITH MIXING PASSAGES HAVING BAFFLESFebruary 2023September 2023Allow710YesNo
18160375GAS TURBINE ENGINE HAVING A HEAT EXCHANGER LOCATED IN AN ANNULAR DUCTJanuary 2023June 2023Allow500NoNo
18154683CENTRIFUGALLY PUMPED FUEL SYSTEMJanuary 2023January 2024Allow1210NoNo
18082888CRYOGENIC COOLING SYSTEM FOR AN AIRCRAFTDecember 2022March 2025Allow2710NoNo
18082848CRYOGENIC COOLING SYSTEM FOR AN AIRCRAFTDecember 2022March 2025Allow2710NoNo
18074847PASSIVE SECONDARY AIR ASSIST NOZZLESDecember 2022August 2023Allow910NoNo
17999343STRUCTURE FOR ASSEMBLING A PIECE COMPRISING A FIRST METAL PART AND A SECOND PART MADE OF AN ORGANIC MATRIX COMPOSITE MATERIALNovember 2022October 2023Allow1100NoNo
17999180NACELLE FOR A PROPULSION ASSEMBLY WITH A VERY HIGH BYPASS RATIO, COMPRISING A REMOVABLE AND STRUCTURAL FRONT INTERNAL STRUCTURENovember 2022November 2023Allow1210NoNo
17999106THRUST REVERSER FOR AN AIRCRAFT BYPASS TURBOJET ENGINE NACELLENovember 2022May 2024Allow1730YesNo
17972604COMBINED CYCLE POWER PLANT HAVING REDUCED PARASITIC PUMPING LOSSESOctober 2022July 2024Allow2111YesNo
17972033AIRCRAFT PROPULSION ASSEMBLY COMPRISING A PLATE HEAT EXCHANGER, OF HEXAGONAL LONGITUDINAL SECTION, POSITIONED IN A BIFURCATIONOctober 2022July 2024Allow2120NoNo
17918901MICRO-CATHODE ARC PROPULSION SYSTEMOctober 2022December 2024Abandon2620NoNo
17965662Turbine Engine with Preheat of Cryogenic Fuel via Intermediate FluidOctober 2022December 2023Allow1410NoNo
17963237PROPULSION ASSEMBLY FOR AN AIRCRAFTOctober 2022September 2023Allow1110NoNo
17961667WASTE HEAT RECOVERY SYSTEMOctober 2022February 2024Allow1610NoNo
17995638ACOUSTICALLY OPTIMIZED DISCHARGE LINE GRID WITH CHANNELSOctober 2022March 2023Allow500NoNo
17959534HEAT EXCHANGER FOR A GAS TURBINE ENGINEOctober 2022February 2024Allow1610NoNo
17905055AIR OUTLET FOR A NACELLE FOR AN AIRCRAFT BYPASS TURBOJET ENGINE COMPRISING A GUIDING DEVICE TO FAVOR A REVERSE THRUST PHASEAugust 2022August 2024Allow2320YesNo
17882643COMBINED POWER SYSTEMAugust 2022February 2024Allow1810NoNo
17796491COMBUSTOR AND GAS TURBINEJuly 2022April 2024Allow2010NoNo
17796377TURBINEJuly 2022October 2023Allow1410NoNo
17870123WATER PRESSURE AND QUANTITY MONITORING FOR HYDROGEN STEAM INJECTED AND INTER-COOLED TURBINE ENGINEJuly 2022October 2023Allow1501YesNo
17860746TURBO EXPANDERS FOR TURBINE ENGINES HAVING HYDROGEN FUEL SYSTEMSJuly 2022February 2024Allow1910YesNo
17859092HEAT EXCHANGER FOR A HYDROGEN FUEL DELIVERY SYSTEMJuly 2022January 2024Allow1810NoNo
17790661THRUST REVERSER COMPRISING DOORS FORMING AN UPWARD AIR DEFLECTION OPENING IN THE OPEN POSITIONJuly 2022February 2024Allow2020NoNo
17790230ION BOOSTER FOR THRUST GENERATIONJune 2022October 2024Abandon2720NoNo
17852580SYSTEM AND METHOD FOR INSTALLATION OR REMOVAL OF ONE OR MORE COMBUSTION CANSJune 2022March 2025Allow3211NoNo
17848798COMBUSTOR WITH IMPROVED AERODYNAMICSJune 2022January 2023Allow710NoNo
17843484MULTI-VOLUME ACOUSTIC RESONATOR FOR ROCKET ENGINEJune 2022August 2023Allow1410YesNo
17842245TURBINE EXHAUST GAS RECIRCULATION MIXER BOXJune 2022August 2023Allow1410NoNo
17745396Turbine Engine Gas-Inlet Cooling System and Turbine Engine ApparatusMay 2022July 2023Allow1410NoNo
17742786TURBOFAN ENGINE WITH PRECOOLERMay 2022November 2023Allow1810NoNo
17734723PASSIVELY ACTUATED VARIABLE AREA NOZZLE FOR AN AIRCRAFT PROPULSION SYSTEMMay 2022October 2022Allow600YesNo
17734282RETAINING EJECTED GAS TURBINE BLADESMay 2022August 2023Allow1510YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner KIM, CRAIG SANG.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
20
Examiner Affirmed
9
(45.0%)
Examiner Reversed
11
(55.0%)
Reversal Percentile
80.9%
Higher than average

What This Means

With a 55.0% reversal rate, the PTAB has reversed the examiner's rejections more often than affirming them. 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
59
Allowed After Appeal Filing
32
(54.2%)
Not Allowed After Appeal Filing
27
(45.8%)
Filing Benefit Percentile
84.7%
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, 54.2% 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 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.

Examiner KIM, CRAIG SANG - Prosecution Strategy Guide

Executive Summary

Examiner KIM, CRAIG SANG works in Art Unit 3741 and has examined 852 patent applications in our dataset. With an allowance rate of 87.6%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 34 months.

Allowance Patterns

Examiner KIM, CRAIG SANG's allowance rate of 87.6% places them in the 63% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by KIM, CRAIG SANG receive 1.64 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 KIM, CRAIG SANG is 34 months. This places the examiner in the 25% percentile for prosecution speed. Applications take longer to reach final disposition with this examiner compared to most others.

Interview Effectiveness

Conducting an examiner interview provides a +11.3% benefit to allowance rate for applications examined by KIM, CRAIG SANG. This interview benefit is in the 49% 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, 34.7% of applications are subsequently allowed. This success rate is in the 72% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 34.3% of cases where such amendments are filed. This entry rate is in the 43% percentile among all examiners. Strategic Recommendation: This examiner shows below-average receptiveness to after-final amendments. You may need to file an RCE or appeal rather than relying on after-final amendment entry.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 66.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 55% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences show above-average effectiveness with this examiner. If you have strong arguments, a PAC request may result in favorable reconsideration.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 71.4% of appeals filed. This is in the 55% percentile among all examiners. Of these withdrawals, 34.0% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.

Petition Practice

When applicants file petitions regarding this examiner's actions, 40.8% are granted (fully or in part). This grant rate is in the 41% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 5.8% of allowed cases (in the 90% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.3% 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:

  • Plan for extended prosecution: Applications take longer than average with this examiner. Factor this into your continuation strategy and client communications.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

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.