USPTO Examiner HASAN SABBIR - Art Unit 3745

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19148982TREATMENT OF A NON-AXISYMMETRIC CASING COMPRISING A PLENUM, WITH CONTROLLED OPENINGJuly 2025March 2026Allow800YesNo
19137261COWL OF AN AIRCRAFT TURBINE ENGINE COMPRISING A CENTRAL GRIPPING INTERFACEJune 2025October 2025Allow500YesNo
19221547WIND TURBINE FLUTTER SUPPRESSION METHOD AND DEVICE, CONTROL SYSTEM AND WIND TURBINEMay 2025December 2025Allow711YesNo
19219003TURBINE BLADE, IN PARTICULAR FOR A GAS TURBINE ENGINEMay 2025November 2025Allow510YesNo
19215056INTERNALLY COOLED BRUSH SEAL BACKING PLATE AND METHODMay 2025October 2025Allow501YesNo
19193256TURBINE ASSEMBLYApril 2025July 2025Allow300YesNo
19188407BLADELESS CEILING FANApril 2025June 2025Allow200YesNo
19177992APPARATUS TO REDUCE BEARING FAILUREApril 2025December 2025Allow911YesNo
19078918EXHAUST SYSTEM AND GAS TURBINE EQUIPPED WITH SAMEMarch 2025June 2025Allow300YesNo
19075156SYSTEMS AND METHODS FOR INTEGRALLY GEARED CENTRIFUGAL COMPRESSOR TO MAINTAIN ROTOR CONCENTRICITY WITH DIFFERING PINION GEAR TOOTH COUNTSMarch 2025November 2025Allow910YesNo
19075365GAS TURBINE ENGINE WITH ROTATIONAL SPOOL BALANCING SYSTEMMarch 2025October 2025Allow700NoNo
19073741AEROELASTIC FAN BLADEMarch 2025May 2025Allow200YesNo
19070934GAS TURBINE ENGINE WITH RELATIVE CLOCKING OF BIFURCATIONSMarch 2025August 2025Allow510NoNo
19060054FAN ACCESSORY AND FAN ASSEMBLYFebruary 2025November 2025Allow910YesNo
19054026GAS TURBINE ENGINEFebruary 2025November 2025Allow911YesNo
19037077PROPELLER MOTHER AND CHILD TRANSMISSION ASSEMBLY WITH DUAL PROTECTIONJanuary 2025September 2025Allow810NoNo
19026898PASSIVE CONTROL OF GAS TURBINE CLEARANCES USING CERAMIC MATRIX COMPOSITES INSERTSJanuary 2025August 2025Allow701YesNo
19026359Air Pump Device with Bluetooth FunctionJanuary 2025June 2025Allow510NoNo
19020020METHOD OF OPTIMIZING A ROTOR BLADE, ROTOR BLADE AND WIND TURBINEJanuary 2025December 2025Allow1111NoNo
19012286STRUCTURE AND METHOD FOR A FLEXIBLE TRAILING EDGE PROJECTION OF AN AIRFOILJanuary 2025August 2025Allow701YesNo
18972473CONNECTION MEMBER OF NECK FAN AND NECK FANDecember 2024October 2025Allow1011YesNo
18972379NOZZLE ASSEMBLY FOR EXHAUST FAN UNIT OF HVAC SYSTEMDecember 2024January 2026Allow1420YesNo
18947001COMBINED FANNovember 2024May 2025Allow611NoNo
18942128NOISE-REDUCING AND NONUNIFORM TIP CLEARANCE STRUCTURE OF CENTRIFUGAL COMPRESSORNovember 2024March 2025Allow400YesNo
18937197AXIAL FAN ROTOR FOR REVERSIBLE FLOWNovember 2024October 2025Allow1111YesNo
18921190BLOWEROctober 2024March 2025Allow500YesNo
18855976MULTIPLE-FLOW AIRCRAFT TURBINE ENGINEOctober 2024November 2025Allow1311YesNo
18910266IMPELLEROctober 2024December 2024Allow200NoNo
18851035BELL MOUTH AND FAN UNITSeptember 2024August 2025Allow1110NoNo
18890086AIR GUIDE COVER, OUTDOOR UNIT OF HVAC APPARATUS, AND HVAC APPARATUSSeptember 2024August 2025Allow1110YesNo
18890486CENTRIFUGAL BLOWER HOUSINGSeptember 2024June 2025Allow911YesNo
18848781Blower and Air ConditionerSeptember 2024May 2025Allow800YesNo
18888810Internal Aluminization of Coated SubstratesSeptember 2024July 2025Allow1011YesNo
18848120CENTRIFUGAL BLOWERSeptember 2024July 2025Allow1010YesNo
18830598AXIAL-FLOW HEAT-DISSIPATION FANSeptember 2024June 2025Allow911YesNo
18828009SUCTION SIDE MICRO-RIBLET PATCHES FOR A TURBINE AIRFOILSeptember 2024June 2025Allow910YesNo
18824620CROSS-FLOW FAN AND AIR CONDITIONERSeptember 2024July 2025Allow1020NoNo
18842227A NACELLE FOR A WIND TURBINEAugust 2024July 2025Allow1010NoNo
18812183IMPELLER AND FAN ASSEMBLYAugust 2024April 2025Allow710NoNo
18808157CENTRIFUGAL COMPRESSORAugust 2024March 2025Allow710NoNo
18793201AIRCRAFT GAS TURBINE ENGINE IMPELLER WITH A TRAILING EDGE THAT IS NON-LINEAR OR ANGLED OR IRREGULARLY-SHAPEDAugust 2024December 2025Allow1711YesNo
18792238CEILING FAN BLADE INSTALLATION STRUCTUREAugust 2024December 2024Allow400NoNo
18789301AIRFOIL AND GAS TURBINE INCLUDING SAMEJuly 2024October 2025Allow1521YesNo
18782732TRAILING EDGE COOLING CIRCUIT FOR TURBOMACHINE AIRFOILJuly 2024September 2025Allow1401YesNo
18777961ROTATING AIRFOIL ASSEMBLYJuly 2024September 2025Allow1421YesNo
18766133CEILING FANJuly 2024December 2024Allow510YesNo
18738163FAN WHEEL AND A METHOD OF MANUFACTURING THEREOFJune 2024May 2025Abandon1101NoNo
18735571FAN FOR AIRCRAFT INTERIORJune 2024July 2025Allow1300YesNo
18668468FAN SHROUD AND RADIATOR FAN FOR A MOTOR VEHICLE, AND RADIATOR FAN HAVING THE FAN SHROUDMay 2024September 2025Abandon1620NoNo
18668975Wind TurbineMay 2024November 2025Allow1821YesNo
18667721HIGH-SPEED BOOSTER FAN MODULEMay 2024October 2024Allow510NoNo
18641549COOLING FAN ASSEMBLYApril 2024October 2024Allow610NoNo
18631497AIRFOIL TIP CLEANING AND ASSESSMENT SYSTEMS AND METHODSApril 2024August 2024Allow400NoNo
18699560COMPRESSOR IMPELLERApril 2024June 2025Allow1411YesNo
18601307CENTRIFUGAL COMPRESSOR WITH REVERSE OVERHUNG VOLUTEMarch 2024October 2024Allow710YesNo
18594065PASSIVE CONTROL OF GAS TURBINE CLEARANCES USING CERAMIC MATRIX COMPOSITES INSERTSMarch 2024December 2024Allow1011YesNo
18594214BLOWERMarch 2024January 2025Allow1110NoNo
18293212A Novel Nearshore Logistics Anchorage HubJanuary 2024March 2026Allow2500YesNo
18420229ASSEMBLY FOR A TURBOMACHINE COMPRISING LUBRICANT EVACUATION MEANS, AND TURBOMACHINE EQUIPPED WITH SUCH AN ASSEMBLYJanuary 2024June 2025Allow1711YesNo
18580238Blade Arrangement Having MicrobladesJanuary 2024March 2025Allow1411YesNo
18575211BLADE CONSTRUCTIONDecember 2023January 2025Allow1211YesNo
18398096FAN BLADEDecember 2023October 2024Allow1011YesNo
18543844VACUUM CLEANER ROBOT WITH A DUAL-OUTLET VOLUTE FOR CLEANING SWIMMING POOLSDecember 2023February 2026Allow2600YesNo
18540001BLOWER DEVICEDecember 2023April 2025Allow1600YesNo
18538900IMPELLERDecember 2023June 2024Allow600YesNo
18516007FAN FOR REGENERATIVE AIR VACUUM STREET SWEEPER, AND METHOD OF FAN MANUFACTURE AND ASSEMBLYNovember 2023March 2025Allow1621YesNo
18496191CENTRIFUGAL COMPRESSOR IMPELLER WITH NONLINEAR BACKWALLOctober 2023June 2024Allow700YesNo
18489470Aeroelastic Rudder for a Wind TurbineOctober 2023June 2024Allow811YesNo
18555801TURBINE RING ASSEMBLY MOUNTED ON A CROSS-MEMBEROctober 2023April 2024Allow610NoNo
18555703REFRIGERANT COMPRESSOR FOR AIR-CONDITIONING SYSTEMS AND METHOD FOR OPERATING A REFRIGERANT COMPRESSOROctober 2023August 2025Allow2200YesNo
18476013SYSTEMS AND METHODS FOR INTEGRALLY GEARED CENTRIFUGAL COMPRESSOR TO MAINTAIN ROTOR CONCENTRICITY WITH DIFFERING PINION GEAR TOOTH COUNTSSeptember 2023October 2024Allow1301YesNo
18372955Airfoils with Lobed Cooling CavitiesSeptember 2023August 2024Allow1111YesNo
18372438TURBINE ASSEMBLY WITH CLEARANCE SENSOR HAVING INTEGRATED INTERNAL COOLINGSeptember 2023May 2024Allow801YesNo
18462064PERICRITICAL FLUID SYSTEMS FOR TURBINE ENGINESSeptember 2023February 2024Allow500NoNo
18240679CEILING FANAugust 2023June 2024Allow1011NoNo
18453642CENTRIFUGAL BLOWER, AIR-BLOWING APPARATUS, AIR-CONDITIONING APPARATUS, AND REFRIGERATION CYCLE APPARATUSAugust 2023September 2024Abandon1301NoNo
18453565CENTRIFUGAL BLOWER, AIR-BLOWING APPARATUS, AIR-CONDITIONING APPARATUS, AND REFRIGERATION CYCLE APPARATUSAugust 2023November 2024Abandon1511NoNo
18453491CENTRIFUGAL BLOWER, AIR-BLOWING APPARATUS, AIR-CONDITIONING APPARATUS, AND REFRIGERATION CYCLE APPARATUSAugust 2023March 2024Allow700YesNo
18452900TURBINE ROTOR DOVETAIL STRUCTURE WITH SPLINESAugust 2023September 2024Allow1300YesNo
18452030HIGH-PRESSURE ROTOR CONTROL SYSTEMAugust 2023October 2025Allow2610YesNo
18449065AIR INTAKE BYPASS RECIRCULATION STRUCTURE WITH ADJUSTABLE AIR ENTRAINING AMOUNT AND CONTROLLABLE BROADBAND NOISEAugust 2023January 2024Allow610YesNo
18275106FAN AND INDOOR EQUIPMENTJuly 2023November 2024Allow1500YesNo
18228525BLOWER HOUSING FOR BLOWER OF HVAC SYSTEMJuly 2023February 2024Allow700NoNo
18360386COMPOSITE IMPELLER WITH REPLACEABLE BLADESJuly 2023November 2024Abandon1511NoNo
18356690Apparatus to Reduce Bearing FailureJuly 2023December 2024Allow1701YesNo
18273292FAN SHROUD ASSEMBLYJuly 2023November 2024Allow1610NoNo
18348665DUAL PRESSURE-BOOSTING HIGH WIND SPEED FANJuly 2023January 2025Allow1910NoNo
18339839AIRFOIL TIP CLEANING AND ASSESSMENT SYSTEMS AND METHODSJune 2023January 2024Allow700NoNo
18208887FANJune 2023February 2024Allow810NoNo
18333325CENTRIFUGAL FANJune 2023April 2024Allow1111NoNo
18207761COMPRESSOR VARIABLE VANE SPINDLE MOUNT WITH FLOATING SEALJune 2023September 2024Allow1610NoNo
18207907HYBRID SHROUD IMPELLERJune 2023November 2025Allow2911YesNo
18205543TOW AND RIDE DEBRIS BLOWERSJune 2023March 2025Allow2111NoNo
18326489ACOUSTIC TREATMENT MADE BY ADDITIVE MANUFACTURINGMay 2023October 2025Allow2820NoNo
18254819SEALING GAS LEAKAGE RECOVERY AND SEALING GAS BOOSTING SYSTEM AND METHODMay 2023December 2025Allow3111YesNo
18322146ASSEMBLIES FOR WIND TURBINES AND METHODSMay 2023February 2024Allow911NoNo
18318852FANMay 2023December 2023Allow710NoNo
18315736TURBINE ENGINE WITH A ROTOR SEAL RETRACTION MECHANISMMay 2023July 2024Allow1411NoNo
18304443TURBINE COMPONENT HAVING PLATFORM COOLING CIRCUITApril 2023September 2024Allow1721NoNo
18304922TURBINE AIRFOIL ATTACHMENT WITH SERRATION PROFILEApril 2023September 2024Allow1700YesNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
9
Examiner Affirmed
8
(88.9%)
Examiner Reversed
1
(11.1%)
Reversal Percentile
24.2%
Lower than average

What This Means

With a 11.1% 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
14
Allowed After Appeal Filing
4
(28.6%)
Not Allowed After Appeal Filing
10
(71.4%)
Filing Benefit Percentile
42.9%
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, 28.6% 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 HASAN, SABBIR - Prosecution Strategy Guide

Executive Summary

Examiner HASAN, SABBIR works in Art Unit 3745 and has examined 330 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 30 months.

Allowance Patterns

Examiner HASAN, SABBIR's allowance rate of 87.6% places them in the 67% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by HASAN, SABBIR receive 1.33 office actions before reaching final disposition. This places the examiner in the 19% 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 HASAN, SABBIR is 30 months. This places the examiner in the 62% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +21.6% benefit to allowance rate for applications examined by HASAN, SABBIR. This interview benefit is in the 66% 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, 32.1% of applications are subsequently allowed. This success rate is in the 67% 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 37.6% 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, 100.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 77% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences are highly effective with this examiner compared to others. Before filing a full appeal brief, strongly consider requesting a PAC. The PAC provides an opportunity for the examiner and supervisory personnel to reconsider the rejection before the case proceeds to the PTAB.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 50.0% of appeals filed. This is in the 21% percentile among all examiners. Of these withdrawals, 11.1% 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, 30.3% are granted (fully or in part). This grant rate is in the 18% 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 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 0.7% of allowed cases (in the 57% 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:

  • Request pre-appeal conferences: PACs are highly effective with this examiner. Before filing a full appeal brief, request a PAC to potentially resolve issues without full PTAB review.

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.