USPTO Examiner KHANDKER RAIHAN R - Art Unit 3771

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18662610DEVICE FOR VASCULAR OCCLUSION AND METHODS OF USE THEREOFMay 2024September 2025Allow1630YesNo
18630489HIP CAPSULE CLOSUREApril 2024January 2026Abandon2120NoNo
18500321FRAME AND PATCH DESIGN FOR OCCLUDER WITH ACCESS PASSAGENovember 2023October 2024Allow1200YesNo
18485659FRAME AND PATCH DESIGN FOR OCCLUDER WITH ACCESS PASSAGEOctober 2023July 2025Allow2120YesNo
18378628MEDICAL DEVICE AND SYSTEM FOR OCCLUDING A TISSUE OPENING AND METHOD THEREOFOctober 2023February 2025Allow1610NoNo
18481326Occlusion DeviceOctober 2023February 2025Allow1610YesNo
18458099SYSTEMS AND METHODS FOR TREATING ANEURYSMSAugust 2023November 2024Allow1510YesNo
18238299CATHETER SYSTEMS FOR APPLYING EFFECTIVE SUCTION IN REMOTE VESSELS AND THROMBECTOMY PROCEDURES FACILITATED BY CATHETER SYSTEMSAugust 2023September 2025Allow2511NoNo
18353880SYSTEMS AND METHODS FOR TREATING ANEURYSMSJuly 2023April 2024Allow910YesNo
18350669SUCTION CUP DESIGN FOR CAPSULOTOMY DEVICEJuly 2023January 2025Allow1810YesNo
18209082SUTURE RETENTION DEVICESJune 2023January 2026Abandon3101NoNo
18207719ENDOLUMINAL SLEEVE GASTROPLASTYJune 2023December 2025Abandon3020YesNo
18205081SUTURING DEVICE AND CLAMP FOR USE WITH SAMEJune 2023April 2025Allow2230NoNo
18254147ATRIAL APPENDAGE EXCLUDERMay 2023June 2025Allow2400NoNo
18308463AUTOMATED SEWING AND THREAD MANAGEMENTApril 2023August 2025Allow2820YesNo
18249034MEDICAL SYSTEM AND MEDICAL DEVICEApril 2023August 2025Abandon2810NoNo
18023617ANEURYSM OCCLUSION DEVICE, THERAPEUTIC APPARATUS FOR ANEURYSM OCCLUSION AND ANEURYSM OCCLUSION SYSTEMFebruary 2023August 2025Abandon2910NoNo
18114875METHODS AND DEVICES FOR PAPILLARY SUTURINGFebruary 2023May 2025Allow2610NoNo
18023567HEMANGIOMA OCCLUSION APPARATUS, HEMANGIOMA OCCLUSION AND TREATMENT APPARATUS, AND HEMANGIOMA OCCLUSION SYSTEMFebruary 2023December 2025Abandon3310NoNo
18113442LEFT ATRIAL APPENDAGE CLOSURE DEVICE WITH PASSIVE FIXATIONFebruary 2023March 2026Allow3621YesNo
18172649SUTURE PASSER DEVICES AND METHODSFebruary 2023February 2026Abandon3611NoNo
18160248AORTIC FLOW METER AND PUMP FOR PARTIAL-AORTIC OCCLUSIONJanuary 2023February 2025Allow2410NoNo
18150875SUTURING DEVICEJanuary 2023July 2025Allow3120YesNo
18150296Prefilled Medicated PacifierJanuary 2023October 2025Abandon3410NoNo
18077514METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTSDecember 2022May 2025Abandon2940NoNo
18008231RELEASE APPARATUS, RELEASE SYSTEM, RELEASE METHOD, AND TREATMENT APPARATUSDecember 2022November 2025Abandon3611NoNo
18060719HIGH-PRESSURE EMBOLIC MATERIAL DELIVERY DEVICE AND RELATED TECHNOLOGYDecember 2022February 2026Allow3930YesNo
18073286ARTERIAL OCCLUSION IMPLANT AND DELIVERY CATHETER AND METHODSDecember 2022March 2025Allow2811YesNo
18056435FASTENING NAIL, FASTENING NAIL IMPLANTING APPARATUS AND MEDICAL INSTRUMENTNovember 2022January 2026Abandon3820NoNo
18056130TREATMENT TOOL AND TREATMENT TOOL ASSEMBLY METHODNovember 2022June 2025Allow3011YesNo
18053964METHODS OF RECIPROCATION IN A SURGICAL SHAVERNovember 2022October 2025Allow3530NoNo
17982906DEVICE WITH INSERT PLUG FOR OCCLUDING THE LEFT ATRIAL APPENDAGENovember 2022March 2026Abandon4021NoNo
17997327EXPANDABLE DEVICES FOR TREATING BODY LUMENSOctober 2022December 2025Abandon3720NoNo
17949598TISSUE REPAIR DEVICE AND METHODSeptember 2022August 2024Allow2300YesNo
17908943COMPRESSION AIDSeptember 2022April 2025Abandon3210NoNo
17823549METHOD FOR USING A SURGICAL DEVICE TO TRANSECT A TRANSVERSE CARPAL LIGAMENTAugust 2022February 2025Allow2910YesNo
17908121THREAD INSERTION DEVICEAugust 2022October 2025Abandon3711NoNo
17898731SYSTEM AND METHOD FOR CATHETERIZATION USING AN INTRALUMINAL ELECTROMAGNETIC WORKING CAPSULEAugust 2022March 2025Allow3110YesNo
17813914Embolic Coil And Detachment SystemJuly 2022December 2023Allow1720YesNo
17825630PARTIAL REUSABLE ROBOT PERFORMING ENDO-TOOL MANIPULATIONMay 2022July 2025Allow3710YesNo
17825431System and Method for Fluid Ingress Control for a Skin Grafting SystemMay 2022April 2025Allow3510YesNo
17804053IMPLANT WITH INTRASACCULAR AND INTRAVASCULAR PORTIONS AND RELATED TECHNOLOGYMay 2022November 2025Abandon4230YesNo
17740343DEVICES, SYSTEMS, AND METHODS FOR OCCLUDING AN ANATOMICAL PASSAGEMay 2022November 2024Allow3040YesNo
17728525LEFT ATRIAL APPENDAGE IMPLANTApril 2022July 2025Abandon3941NoNo
17716073OCCLUSIVE MATERIAL FOR MEDICAL DEVICE, SYSTEM, AND METHOD THEREOFApril 2022October 2025Allow4250YesNo
17715361Tissue AnchorApril 2022September 2025Abandon4240NoNo
17703771SUTURING DEVICE AND CLAMP FOR USE WITH SAMEMarch 2022March 2023Allow1110YesNo
17680733Holster and Tourniquet Device and Method of UseFebruary 2022June 2023Allow1610NoNo
17591843SYSTEMS AND METHODS FOR IMPLANTING ELECTRODE LEADSFebruary 2022March 2023Allow1400YesNo
17586275EMBOLIZATION DEVICES AND METHODS OF MANUFACTURING THE SAMEJanuary 2022February 2025Abandon3730NoNo
17619111OCCLUSION DEVICEDecember 2021August 2023Allow2030YesNo
17545170SUTURE NEEDLE PACKAGES FOR LOADING SUTURE NEEDLES AND METHODS OF PASSING SUTURE NEEDLES THROUGH TROCARSDecember 2021November 2024Abandon3530NoNo
17614242SYSTEMS AND METHODS FOR TREATING ANEURYSMSNovember 2021July 2024Allow3120YesNo
17533327SYSTEMS AND METHODS FOR ENDOVASCULAR COIL DETACHMENT MONITORINGNovember 2021March 2024Allow2840YesNo
17521673GEARED ACTUATION MECHANISMS FOR SURGICAL INSTRUMENTS SUCH AS FOR USE IN ROBOTIC SURGICAL SYSTEMSNovember 2021January 2025Abandon3840YesNo
17518909METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTSNovember 2021January 2024Abandon2610NoNo
17604948OCCLUDER SUPPORT AND PREPARATION METHOD THEREFOROctober 2021April 2025Abandon4240YesNo
17604254Occluder With No Externally Protruding Structure At Either EndOctober 2021August 2025Abandon4640NoNo
17399313INTRAVASCULAR DEVICES WITH RADIOPAQUE BODY MARKERSAugust 2021April 2025Allow4411YesNo
17422000OCCLUDER INSERTION SYSTEMJuly 2021April 2023Allow2100YesNo
17415622FILLING MATERIAL FOR TREATING CHRONIC VENOUS INSUFFICIENCY AND A CORRESPONDING INSERTION METHODJune 2021March 2024Allow3220YesNo
17188579MAGNETICALLY DEPLOYABLE URINARY STENTMarch 2021August 2024Allow4131YesNo
17183160DEVICES AND METHODS FOR EXCLUDING THE LEFT ATRIAL APPENDAGEFebruary 2021July 2024Allow4020YesNo
17165487FRAME AND PATCH DESIGN FOR OCCLUDER WITH ACCESS PASSAGEFebruary 2021August 2023Allow3011YesNo
17264441EMBOLIZATION DEVICES AND METHODS OF MANUFACTURING THE SAMEJanuary 2021October 2021Allow910YesNo
17160570ANEURYSM IMPLANT SUPPORT DEVICEJanuary 2021December 2023Allow3530YesNo
17159908DEVICE AND METHOD FOR INTRACORPOREAL AND EXTRACORPOREAL LAPAROSCOPIC SUTURING AND KNOT TYINGJanuary 2021March 2023Allow2611NoNo
17156370MOTORIZED IMPLANT DELIVERY SYSTEMJanuary 2021January 2025Allow4840YesNo
17127640INFLATABLE SURGICAL COMPRESSION DEVICE AND RELATED SYSTEMS AND METHODSDecember 2020December 2022Allow2420YesNo
17120978TREATMENT TOOLDecember 2020October 2025Abandon5821NoNo
17117064DEVICES AND METHODS FOR CLOSING A LEFT ATRIAL APPENDAGEDecember 2020November 2023Abandon3520NoNo
17112759SUCTION CUP DESIGN FOR CAPSULOTOMY DEVICEDecember 2020April 2023Allow2820YesNo
17111415MEDICAL DEVICE AND SYSTEM FOR OCCLUDING A TISSUE OPENING AND METHOD THEREOFDecember 2020July 2023Allow3120YesNo
15734302ENDOPROSTHESIS FOR A TOTAL VASCULAR EXCLUSION OF THE LIVERDecember 2020August 2022Abandon2110NoNo
17108191PERCUTANEOUS SLING FOR PAPILLARY MUSCLE APPROXIMATIONDecember 2020January 2024Allow3831YesNo
16639209ARTIFICIAL CHORDAE TENDINEAE IMPLANTATION SYSTEM AND CLAMP AIDING APPARATUS THEREOFOctober 2020August 2023Allow4221YesNo
17067710SURGICAL DEVICE FOR USE IN ENDOSCOPIC CARPAL TUNNEL RELEASE (ECTR), ENDOSCOPIC CUBITAL TUNNEL RELEASE (ECUTR), AND ENDOSCOPIC PLANTAR FASCIITIS RELEASE (EPFR)October 2020January 2025Allow5110YesNo
16981562Systems and Methods of Performing Transcanal Ear SurgerySeptember 2020November 2025Allow6030YesNo
16988328SYSTEMS AND METHODS FOR ATRIAL TRANSSEPTAL ACCESS AND CLOSUREAugust 2020May 2023Abandon3301NoNo
16986611CONTENT INFLATION AND DELIVERY SYSTEMAugust 2020April 2024Abandon4501NoNo
16965919VASCULAR OCCLUSION DEVICES UTILIZING THIN FILM NITINOL FOILSJuly 2020October 2022Allow2720YesNo
16938814AUTOMATED SEWING AND THREAD MANAGEMENTJuly 2020January 2023Allow3021YesNo
16927832Coaxial Coil Detachment Systems Based on Targeting and Shock Absorbing Coil ImprovementsJuly 2020April 2023Abandon3320NoNo
16927432SUTURE GUIDE AND TENSIONING DEVICEJuly 2020January 2022Allow1810YesNo
16927439Holster and Tourniquet Device and Method of UseJuly 2020February 2022Allow1920YesNo
16877796CATHETER SYSTEMS FOR APPLYING EFFECTIVE SUCTION IN REMOTE VESSELS AND THROMBECTOMY PROCEDURES FACILITATED BY CATHETER SYSTEMSMay 2020June 2023Allow3711YesNo
16839370SPECIALIZED KNOT PUSHER FOR SURGICAL PORT CLOSURE AND SUTURING DEVICESApril 2020June 2023Allow3850YesNo
16838851METHOD AND APPARATUS FOR A MEDICAL GUIDANCE DEVICEApril 2020January 2025Abandon5750YesNo
16817018TISSUE SPECIMEN BAGS AND SYSTEMSMarch 2020June 2022Abandon2710YesNo
16646126METHODS AND DEVICES FOR PAPILLARY SUTURINGMarch 2020October 2022Allow3220NoNo
16645767DEVICE FOR REMOVAL OF IMPLANTS AND ASSOCIATED METHOD OF USEMarch 2020February 2024Allow4731YesNo
16642249INDWELLING DEVICE FOR EMBOLIZATION AND METHOD FOR MANUFACTURING THE SAMEFebruary 2020April 2022Allow2610YesNo
16641925UNIVERSAL CATHETER TIP AND METHODS OF MANUFACTURINGFebruary 2020July 2023Abandon4110NoNo
16640142OCCLUSION DEVICEFebruary 2020August 2023Allow4170YesNo
16782871DEVICES AND METHODS FOR EXCLUDING THE LEFT ATRIAL APPENDAGEFebruary 2020November 2024Allow5860YesNo
16774394MODULAR LEFT ATRIAL APPENDAGE CLOSUREJanuary 2020August 2022Allow3130YesNo
16751798DEVICES, SYSTEMS, AND METHODS FOR TIGHTENING, FASTENING, OR ANCHORING IN TISSUEJanuary 2020August 2022Abandon3120NoNo
16632234SURGICAL CLAMPJanuary 2020November 2023Allow4640NoNo
16735097VASCULAR IMPLANTJanuary 2020March 2025Abandon6031NoNo
16720978OCCLUSION DETECTION BY PRESSURE MEASUREMENTDecember 2019November 2022Allow3531NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner KHANDKER, RAIHAN R.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
1
Examiner Affirmed
0
(0.0%)
Examiner Reversed
1
(100.0%)
Reversal Percentile
99.2%
Higher than average

What This Means

With a 100.0% 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
3
Allowed After Appeal Filing
1
(33.3%)
Not Allowed After Appeal Filing
2
(66.7%)
Filing Benefit Percentile
55.4%
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, 33.3% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

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 KHANDKER, RAIHAN R - Prosecution Strategy Guide

Executive Summary

Examiner KHANDKER, RAIHAN R works in Art Unit 3771 and has examined 118 patent applications in our dataset. With an allowance rate of 64.4%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 35 months.

Allowance Patterns

Examiner KHANDKER, RAIHAN R's allowance rate of 64.4% places them in the 25% percentile among all USPTO examiners. This examiner is less likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by KHANDKER, RAIHAN R receive 2.35 office actions before reaching final disposition. This places the examiner in the 67% 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 KHANDKER, RAIHAN R is 35 months. This places the examiner in the 41% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +59.2% benefit to allowance rate for applications examined by KHANDKER, RAIHAN R. This interview benefit is in the 96% 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, 25.6% of applications are subsequently allowed. This success rate is in the 41% 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 18.3% of cases where such amendments are filed. This entry rate is in the 22% 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, 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 66.7% of appeals filed. This is in the 52% percentile among all examiners. Of these withdrawals, 50.0% 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, 100.0% are granted (fully or in part). This grant rate is in the 93% 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 45% 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 48% 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:

  • Prepare for rigorous examination: With a below-average allowance rate, ensure your application has strong written description and enablement support. Consider filing a continuation if you need to add new matter.
  • 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.
  • 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.