USPTO Examiner SEHN MICHAEL L - Art Unit 3745

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18860295PROPELLER BLADE OR AIRFOIL WITH WOUND COMPOSITE ROOTOctober 2024June 2025Allow710NoNo
18807374TURBINE ENGINE WITH COMPSITE AIRFOILSAugust 2024February 2025Allow610YesNo
18806835TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024January 2025Allow510NoNo
18806969TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024February 2025Allow610NoNo
18807233TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024January 2025Allow510NoNo
18792941TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024January 2025Allow610NoNo
18792952TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024February 2025Allow710NoNo
18792695TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024January 2025Allow610NoNo
18792961TURBINE ENGINE WITH COMPOSITE AIRFOILSAugust 2024February 2025Allow610NoNo
18777725TURBINE ENGINE WITH COMPOSITE AIRFOILSJuly 2024February 2025Allow710NoNo
18777644TURBINE ENGINE WITH COMPOSITE AIRFOILSJuly 2024February 2025Allow710NoNo
18764770TURBINE ENGINE WITH COMPOSITE AIRFOILSJuly 2024January 2025Allow710NoNo
18722026CMC MATERIALS WITH INTEGRATED THERMOCOUPLEJune 2024November 2024Allow500NoNo
18741419TURBINE ENGINE WITH COMPOSITE AIRFOILSJune 2024February 2025Allow810NoNo
18739753PROPELLERJune 2024April 2025Abandon1110YesNo
18736903METHOD FOR SIZING STUBS OPTIMIZED FOR ORBITAL WELDING OF BLADES ON A TURBOMACHINE ROTORJune 2024March 2025Allow1010NoNo
18655490PROTECTION SYSTEMMay 2024June 2025Allow1411NoNo
18640177METHOD FOR SIZING STUBS OPTIMIZED FOR ORBITAL WELDING OF BLADES ON A TURBOMACHINE ROTORApril 2024March 2025Allow1110NoNo
18630268WIND TURBINE ROTOR BLADE WITH ACCESS WINDOWApril 2024December 2024Allow810NoNo
18622527METHOD FOR OPERATING A WIND TURBINE AND WIND TURBINEMarch 2024March 2025Allow1110NoNo
18694821METHOD FOR PREPARING A ROOT OF A TURBOMACHINE BLADEMarch 2024May 2025Allow1420YesNo
18604004QUICK INSTALLATION CEILING FAN BLADESMarch 2024August 2024Allow500NoNo
18597343BLOWER WHEEL ASSEMBLIES AND METHODSMarch 2024April 2025Allow1310NoNo
18594594TURBINE ENGINE WITH REDUCED CROSS FLOW AIRFOILSMarch 2024June 2025Allow1530YesNo
18688958AXIAL FAN MOTORMarch 2024February 2025Allow1211NoNo
18687560PROPELLER FAN, BLOWER, AND AIR CONDITIONERFebruary 2024January 2025Allow1000YesNo
18588423METHOD FOR MANUFACTURING A COMPOSITE BLADED DISK OR ROTORFebruary 2024March 2025Allow1300NoNo
18681767METHOD OF CALIBRATING A REFERENCE OF A WIND TURBINEFebruary 2024March 2025Allow1310YesNo
18418263HANDHELD FANJanuary 2024July 2024Allow611NoNo
18414578AIRFOIL WITH VENTURI TUBEJanuary 2024February 2025Allow1320NoNo
18399070METHOD FOR CONTROLLING A WIND POWER INSTALLATIONDecember 2023June 2025Allow1710YesNo
18571688METHOD FOR BALANCING FAN VANES WITH TRAILING EDGE MACHININGDecember 2023August 2024Allow800YesNo
18571015FIBROUS PREFORM WITH STIFFENERS FORMED BY UNIDIRECTIONAL YARN LAYERSDecember 2023June 2024Allow600YesNo
18534154METHOD TO TIE COMPOSITE VANE PLATFORM AND AIRFOIL DESIGN DETAILSDecember 2023April 2025Allow1611NoNo
18524013METHOD OF CONTROLLING A WIND FARM USING A REINFORCEMENT LEARNING METHODNovember 2023January 2025Allow1310NoNo
18564494DIFFERENTIATED SHORTENING OF STRANDS OF THE FIBROUS REINFORCEMENT OF A FAN BLADENovember 2023November 2024Allow1200NoNo
18513794METHOD OF MANUFACTURING CMC COMPONENTNovember 2023April 2025Allow1700NoNo
18514403BLOWER FANNovember 2023January 2025Allow1410YesNo
18512681TRAVEL STOP FOR A TIP CLEARANCE CONTROL SYSTEMNovember 2023March 2025Allow1611NoNo
18504869PROPELLER GROUND STOP MECHANISMNovember 2023August 2024Allow910YesNo
18502135CENTRIFUGAL COMPRESSOR AND TURBOCHARGERNovember 2023August 2024Allow1000YesNo
18500546AIR-TO-AIR HEAT EXCHANGER POTENTIAL IN GAS TURBINE ENGINESNovember 2023April 2024Allow600NoNo
18496524POWER AMPLIFICATION, STORAGE AND REGENERATION SYSTEM AND METHOD USING TIDES, WAVES AND/OR WINDOctober 2023February 2025Allow1610NoNo
18285122VANE COMPRISING A STRUCTURE MADE OF COMPOSITE MATERIAL, AND ASSOCIATED MANUFACTURING METHODSeptember 2023July 2024Allow1010YesNo
18552716TURBINE RING ASSEMBLY FOR A TURBOMACHINESeptember 2023November 2024Allow1420YesNo
18471922FAN FOR A LIGHTING DEVICE OF A MOTOR VEHICLESeptember 2023June 2024Allow910NoNo
18549500CONTROL METHOD AND CONTROL DEVICE FOR WIND TURBINESeptember 2023September 2024Allow1220NoNo
18455293TILTED CMC VANE ARC SEGMENTAugust 2023November 2024Allow1430NoNo
18447831ROTOR BLADE SYSTEM FOR TURBINE ENGINESAugust 2023May 2025Allow2120YesNo
18229967ENGINE TRIM BALANCE SYSTEMAugust 2023June 2024Allow1010NoNo
18352247TURBO FANJuly 2023July 2024Allow1210NoNo
18345319COMPRESSOR FOR AN ENGINEJune 2023June 2024Allow1210YesNo
18343884COMPOSITE AIRFOIL ASSEMBLY HAVING A DOVETAILJune 2023August 2024Allow1310YesNo
18340205CMC AIRFOIL WITH WISHBONE SHAPED FIBER LAYUP STRUCTURE FORMING PORTION OF PLATFORM AND ROOTJune 2023August 2024Allow1420NoNo
18333743A COMPOSITE AIRFOIL ASSEMBLY AND METHOD OF FORMING A COMPOSITE AIRFOIL ASSEMBLYJune 2023September 2024Allow1510NoNo
18327172Composite Airfoil Assembly for a Turbine EngineJune 2023June 2025Allow2530YesNo
18254843Wind turbine rotor blade, kit, pressure piece and method for connecting two rotor blade segmentsMay 2023August 2024Allow1520NoNo
18254071FIBROUS PREFORM FOR THE AERODYNAMIC PROFILE OF A TURBOMACHINE BLADEMay 2023September 2023Allow400YesNo
18319586CMC LAMINATE AIRFOIL WITH PLY DROPSMay 2023March 2024Allow1020NoNo
18314499COMPOSITE AIRFOIL FOR A TURBINE ENGINEMay 2023February 2025Allow2130YesNo
18195149AIRFOIL WITH CMC PLY CUTOUTS FOR COOLING CHANNELSMay 2023April 2024Allow1211NoNo
18314601COMPLIANT HELICOPTER ROTOR PITCH LINKMay 2023November 2024Allow1820YesNo
18144491METHOD FOR MANUFACTURING A COMPOSITE GUIDE VANE HAVING A METALLIC LEADING EDGEMay 2023September 2024Allow1611NoNo
18251930IMPROVED TURBINE RING ASSEMBLYMay 2023April 2024Allow1110NoNo
18307117CEILING FAN WITH BLADE HUBApril 2023November 2024Allow1940YesNo
18297082Axial Flux Magnet Motor Stator Assembly, An Assembling Method, and a Ceiling FanApril 2023October 2024Allow1801YesNo
18296576METHOD FOR MODIFYING BLADES OF FAN, COMPRESSOR, AND TURBINE OF AXIAL FLOW TYPE, AND BLADES OBTAINED BY THE MODIFICATIONApril 2023May 2024Allow1300YesNo
18194994PROPELLERApril 2023February 2024Allow1110YesNo
18029581Impeller Wheel of a Centrifugal PumpMarch 2023October 2024Allow1920NoNo
18029204MONITORING DEVICE, COMPUTER-READABLE STORAGE MEDIUM FOR STORING MONITORING PROGRAM AND MONITORING METHOD FOR ROTARY MACHINE, AND ROTARY MACHINE EQUIPMENTMarch 2023October 2024Allow1920YesNo
18029139TURBOMACHINE WITH A SHAFT COUPLED TO AN IMPELLER WITH AN AXIALLY INTERPOSED FRICTION RINGMarch 2023March 2024Allow1210YesNo
18028948FLUID MACHINEMarch 2023February 2024Allow1110NoNo
18123708BLADE WITH DAMPER LANDMarch 2023April 2025Allow2540YesNo
18176304BLISK FOR A GAS TURBINEFebruary 2023September 2024Allow1940YesNo
18023187MALE SPAR BEAM FOR A SEGMENTED WIND TURBINE BLADEFebruary 2023May 2025Allow2711NoNo
18171533TURBINE ENGINE WITH COMPOSITE AIRFOILSFebruary 2023November 2023Allow920YesNo
18108100Blower Housing Having Integral Exhaust Blower Discharge Drain SectionFebruary 2023August 2023Allow610NoNo
18018698CLEARANCE CONTROL SYSTEM FOR GAS TURBINEJanuary 2023December 2023Allow1000NoNo
18013507TURBINE WITH DYNAMIC BLADESDecember 2022December 2023Allow1100NoNo
18085864BLADE OUTER AIR SEAL WITH ANGLE-ORIENTED PLY LAYUP FOR CMC COMPOUND RADIIDecember 2022January 2024Allow1320NoNo
18081274OUTBOARD MOTORDecember 2022June 2025Allow3000NoNo
18076976PROFILED STRUCTURE FOR AN AIRCRAFT OR TURBOMACHINE FOR AN AIRCRAFTDecember 2022April 2023Allow400YesNo
18076395AIR BLOWER AND COMBUSTION DEVICE INCLUDING THE SAMEDecember 2022May 2025Allow2910NoNo
18075054ENVIRONMENTAL CONTROL SYSTEM INCLUDING MIXED-FLOW TURBINEDecember 2022January 2025Allow2550NoNo
18074560LIGHTWEIGHT JOURNAL SUPPORT PINDecember 2022March 2023Allow400YesNo
17985447HVAC BLOWER WHEEL INSERTNovember 2022August 2023Allow911NoNo
17979976METHODS AND SYSTEMS FOR DETERMINING ROUGHNESS OF WIND TURBINE BLADES AND WIND TURBINE CONTROLNovember 2022March 2024Allow1710NoNo
17971680AIRCRAFT NACELLE COMPRISING A CONNECTION BETWEEN DUCTS COMPRISING FLANGES WHICH ARE ORIENTED TOWARDS THE INTERIOR, AND AIRCRAFT COMPRISING AT LEAST ONE NACELLE OF THIS TYPEOctober 2022January 2024Allow1510NoNo
17970917AIRFOIL WITH VENTURI TUBEOctober 2022October 2023Allow1221NoNo
18048611STATOR VANE CONTROL SYSTEM WITH MAGNETIC ACTUATION ROTOR FOR GAS TURBINE ENGINESOctober 2022July 2024Allow2110YesNo
17920494SECONDARY-FLUID SUPPLY FOR THE DIFFUSER OF A COMPRESSOR STAGEOctober 2022June 2024Allow2020NoNo
17967759FLIGHT DURATION ENHANCEMENT FOR SINGLE ROTORCRAFT AND MULTICOPTERSOctober 2022April 2024Allow1820NoNo
17962164TWO-PIECE IMPELLER MADE OF MULTIPLE MATERIALSOctober 2022January 2024Allow1630NoNo
17960401CENTRIFUGAL COMPRESSOR WITH RECIRCULATION PASSAGEOctober 2022July 2023Allow920NoNo
17914676TURBINE STATOR BLADE MADE OF CERAMIC MATRIX COMPOSITE MATERIALSeptember 2022March 2023Allow500YesNo
17914219CHARGERSeptember 2022August 2024Allow2210YesNo
17951435CEILING FANSeptember 2022March 2023Allow510NoNo
17913946TURBOMACHINE ROTARY-FAN BLADE, FAN AND TURBOMACHINE PROVIDED THEREWITHSeptember 2022November 2023Allow1310YesNo
17933573CEILING FAN HAVING A DUAL REDUNDANT MOTOR MOUNTING ASSEMBLYSeptember 2022March 2023Allow610YesNo
17912653WIND TURBINE ROTOR BLADE WITH ACCESS WINDOWSeptember 2022December 2023Allow1510NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner SEHN, MICHAEL L.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
23
Examiner Affirmed
16
(69.6%)
Examiner Reversed
7
(30.4%)
Reversal Percentile
46.4%
Lower than average

What This Means

With a 30.4% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
54
Allowed After Appeal Filing
12
(22.2%)
Not Allowed After Appeal Filing
42
(77.8%)
Filing Benefit Percentile
26.7%
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, 22.2% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable reconsideration.

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 SEHN, MICHAEL L - Prosecution Strategy Guide

Executive Summary

Examiner SEHN, MICHAEL L works in Art Unit 3745 and has examined 665 patent applications in our dataset. With an allowance rate of 81.8%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 34 months.

Allowance Patterns

Examiner SEHN, MICHAEL L's allowance rate of 81.8% places them in the 47% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by SEHN, MICHAEL L receive 2.08 office actions before reaching final disposition. This places the examiner in the 69% 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 SEHN, MICHAEL L 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 +13.7% benefit to allowance rate for applications examined by SEHN, MICHAEL L. This interview benefit is in the 55% 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, 24.1% of applications are subsequently allowed. This success rate is in the 25% 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 41.8% of cases where such amendments are filed. This entry rate is in the 57% 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, 88.9% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 65% 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 59.6% of appeals filed. This is in the 29% percentile among all examiners. Of these withdrawals, 26.5% 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, 27.5% are granted (fully or in part). This grant rate is in the 19% percentile among all examiners. Strategic Note: Petitions are rarely granted regarding this examiner's actions compared to other examiners. Ensure you have a strong procedural basis before filing a petition, as the Technology Center Director typically upholds this examiner's decisions.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 39% 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 5.1% of allowed cases (in the 79% percentile). Per MPEP § 714.14, a Quayle action indicates that all claims are allowable but formal matters remain. This examiner frequently uses Quayle actions compared to other examiners, which is a positive indicator that once substantive issues are resolved, allowance follows quickly.

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.

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.