USPTO Examiner SARKAR ASOK K - Art Unit 2891

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18893967METHOD FOR MANUFACTURING SEMICONDUCTOR STACK STRUCTURE WITH ULTRA THIN DIESeptember 2024April 2025Allow611NoNo
18791575INHERENT AREA SELECTIVE DEPOSITION OF SILICON-CONTAINING DIELECTRIC ON METAL SUBSTRATEAugust 2024April 2025Allow900NoNo
18439018PROCESSING METHOD, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, PROCESSING APPARATUS, AND RECORDING MEDIUMFebruary 2024March 2025Allow1310NoNo
18416243Integrated Circuitry, A Memory Array Comprising Strings Of Memory Cells, A Method Used In Forming A Conductive Via, A Method Used In Forming A Memory Array Comprising Strings Of Memory CellsJanuary 2024November 2024Allow1000NoNo
18412645MANUFACTURING METHOD FOR SILICON NITRIDE THIN FILM, THIN FILM TRANSISTOR AND DISPLAY PANELJanuary 2024November 2024Allow1000NoNo
18410333METHOD OF FORMING AN ELECTRONIC STRUCTURE USING REFORMING GAS, SYSTEM FOR PERFORMING THE METHOD, AND STRUCTURE FORMED USING THE METHODJanuary 2024January 2025Allow1210NoNo
18402971RF SWITCH DEVICE WITH A SIDEWALL SPACER HAVING A LOW DIELECTRIC CONSTANTJanuary 2024August 2024Allow800NoNo
18374832METHODS FOR DEPOSITING GAP FILLING FLUIDS AND RELATED SYSTEMS AND DEVICESSeptember 2023January 2025Allow1610NoNo
18458486METHOD OF PROCESSING SUBSTRATE, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, SUBSTRATE PROCESSING APPARATUS, AND RECORDING MEDIUMAugust 2023April 2025Allow2010NoNo
18357300METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, SUBSTRATE PROCESSING APPARATUS, AND RECORDING MEDIUMJuly 2023December 2024Allow1610NoNo
18223543HIGH ELECTRON MOBILITY TRANSISTOR AND METHOD FOR FABRICATING THE SAMEJuly 2023June 2024Allow1110NoNo
18349930SYSTEMS AND METHODS FOR ANALYZING DEFECTS IN CVD FILMSJuly 2023January 2025Allow1810NoNo
18342048TOPOLOGY SELECTIVE AND SACRIFICIAL SILICON NITRIDE LAYER FOR GENERATING SPACERS FOR A SEMICONDUCTOR DEVICE DRAINJune 2023November 2024Allow1710NoNo
18342296METHOD OF USING DUAL FREQUENCY RF POWER IN A PROCESS CHAMBERJune 2023July 2024Allow1200NoNo
18195196NITROGEN-RICH SILICON NITRIDE FILMS FOR THIN FILM TRANSISTORSMay 2023June 2024Allow1310NoNo
18134802CHALCOGEN PRECURSORS FOR DEPOSITION OF SILICON NITRIDEApril 2023August 2024Allow1620NoNo
18125509PEALD Nitride FilmsMarch 2023August 2024Allow1710NoNo
18185205METHOD OF LINEARIZED FILM OXIDATION GROWTHMarch 2023November 2024Allow2010NoNo
18119347SUBSTRATES FOR OPTICAL AND ELECTRON MICROSCOPY OF 2D MATERIALSMarch 2023June 2025Allow2700NoNo
18179293METHOD OF PROCESSING SUBSTRATE, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, SUBSTRATE PROCESSING APPARATUS, AND RECORDING MEDIUMMarch 2023May 2023Allow300NoNo
18176692METHOD OF DEPOSITING ATOMIC LAYER AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICEMarch 2023July 2025Allow2800NoNo
18109365ELECTRONIC DEVICE FABRICATION USING AREA-SELECTIVE DEPOSITIONFebruary 2023June 2025Allow2800NoNo
18155507Cyclic Low Temperature Film Growth ProcessesJanuary 2023August 2024Allow1910NoNo
18003145REDUCING INTRALEVEL CAPACITANCE IN SEMICONDUCTOR DEVICESDecember 2022May 2025Allow2800NoNo
18003133IMPURITY REDUCTION IN SILICON-CONTAINING FILMSDecember 2022May 2025Allow2800NoNo
18068110Slot Contacts and Method Forming SameDecember 2022February 2024Allow1400NoNo
18074849SYSTEMS AND METHODS FOR DEPOSITING LOW-K DIELECTRIC FILMSDecember 2022August 2024Allow2010YesNo
17990867METHODS OF FILLING RECESSES ON SUBSTRATE SURFACES AND FORMING VOIDS THEREINNovember 2022April 2025Allow2900NoNo
17983131METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, SUBSTRATE PROCESSING APPARATUS, AND RECORDING MEDIUMNovember 2022January 2024Allow1410NoNo
18053220Integrated Circuit Features with Obtuse Angles and Method of Forming SameNovember 2022May 2024Allow1810NoNo
17977635METHOD OF PROCESSING SUBSTRATE, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, SUBSTRATE PROCESSING APPARATUS, AND RECORDING MEDIUMOctober 2022December 2023Allow1410NoNo
17971265METHOD FOR DEPOSITING A GAP-FILL LAYER BY PLASMA-ASSISTED DEPOSITIONOctober 2022December 2023Allow1410NoNo
17968549VERTICAL TRANSISTOR AND METHOD OF FORMING THE VERTICAL TRANSISTOROctober 2022May 2024Allow1910YesNo
17963841HIGHLY ETCH SELECTIVE AMORPHOUS CARBON FILMOctober 2022February 2024Allow1610NoNo
17963059HIGHLY ETCH SELECTIVE AMORPHOUS CARBON FILMOctober 2022June 2024Allow2020YesNo
17961224CARBON HARD MASKS FOR PATTERNING APPLICATIONS AND METHODS RELATED THERETOOctober 2022August 2023Allow1010NoNo
17957552BACKSIDE WAFER TREATMENTS TO REDUCE DISTORTIONS AND OVERLAY ERRORS DURING WAFER CHUCKINGSeptember 2022April 2025Allow3000NoNo
17936607SELECTIVE DEPOSITION OF ORGANIC MATERIALSeptember 2022March 2025Allow3000NoNo
17944583METHOD OF FORMING AN ELECTRONIC STRUCTURE USING REFORMING GAS, SYSTEM FOR PERFORMING THE METHOD, AND STRUCTURE FORMED USING THE METHODSeptember 2022October 2023Allow1310NoNo
17885570HIGH-RESISTANCE RESISTOR BASED ON SILICON CARBIDE AND MANUFACTURING METHOD THEREOFAugust 2022January 2025Allow3000NoNo
17878443SOURCE-BODY SELF-ALIGNED METHOD OF A VERTICAL DOUBLE DIFFUSED METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTORAugust 2022January 2025Allow3000NoNo
17796552DISPLAY SUBSTRATE, METHOD FOR MANUFACTURING THE DISPLAY SUBSTRATE AND DISPLAY DEVICEJuly 2022March 2025Allow3200NoNo
17815519STRUCTURE FOR FRINGING CAPACITANCE CONTROLJuly 2022October 2023Allow1510NoNo
17873597FORMING FILMS WITH IMPROVED FILM QUALITYJuly 2022January 2025Allow3000NoNo
17814565METAL-ORGANIC PULSED LASER DEPOSITION FOR STOICHIOMETRIC COMPLEX OXIDE THIN FILMSJuly 2022May 2023Allow1000NoNo
17794723DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAMEJuly 2022February 2025Allow3100NoNo
17759072UV CURE FOR LOCAL STRESS MODULATIONJuly 2022January 2025Allow3000NoNo
17867010Methods For Stabilization Of Self-Assembled Monolayers (SAMs) Using Sequentially Pulsed Initiated Chemical Vapor Deposition (spiCVD)July 2022March 2025Allow3210NoNo
17812721METHOD FOR MANUFACTURING SHALLOW TRENCH ISOLATION STRUCTURE, SHALLOW TRENCH ISOLATION STRUCTURE AND SEMICONDUCTOR STRUCTUREJuly 2022April 2025Allow3410NoNo
17859929METHOD FOR SELECTIVE DEPOSITION OF SILICON NITRIDE LAYER AND STRUCTURE INCLUDING SELECTIVELY-DEPOSITED SILICON NITRIDE LAYERJuly 2022October 2023Allow1510NoNo
17859731Integrated Circuit Structure With Non-Gated Well Tap CellJuly 2022October 2023Allow1510NoNo
17809747METHOD OF PROCESSING WAFERJune 2022April 2025Allow3310YesNo
17758071STATION-TO-STATION CONTROL OF BACKSIDE BOW COMPENSATION DEPOSITIONJune 2022December 2024Allow2900NoNo
17808352FORMING METHOD OF SEMICONDUCTOR STRUCTURE AND SEMICONDUCTOR STRUCTUREJune 2022April 2025Allow3410NoNo
17847637MICRO LIGHT-EMITTING ELEMENT, MICRO LIGHT-EMITTING ELEMENT ARRAY INCLUDING THE MICRO LIGHT-EMITTING ELEMENT, AND DISPLAY DEVICE INCLUDING THE MICRO LIGHT-EMITTING ELEMENT ARRAYJune 2022May 2025Allow3410YesNo
17843436METHOD OF PROCESSING SUBSTRATE, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, SUBSTRATE PROCESSING APPARATUS AND RECORDING MEDIUMJune 2022September 2023Allow1510NoNo
17843373SEMICONDUCTOR DEVICE AND METHOD FOR FORMING THE SAMEJune 2022September 2023Allow1510YesNo
17840797LOW-K FILMSJune 2022May 2023Allow1100NoNo
17805715MULTIGATE DEVICE STRUCTURE WITH ENGINEERED CLADDING AND METHOD MAKING THE SAMEJune 2022October 2024Allow2900NoNo
17783071SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICEJune 2022March 2025Allow3310NoNo
17831593METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE WITH WORD LINESJune 2022November 2024Allow2900NoNo
17832338Multi-Gate Devices And Method Of Forming The SameJune 2022June 2025Allow3711NoNo
17748640Wafer Bonding Method and Bonded Device StructureMay 2022April 2025Allow3410YesNo
17730944DUAL GATE DIELECTRIC LAYERS GROWN WITH AN INHIBITOR LAYERApril 2022November 2023Allow1910NoNo
17660767MICROELECTRONIC DEVICES INCLUDING A SELECTIVELY REMOVABLE CAP DIELECTRIC MATERIAL, METHODS OF FORMING THE MICROELECTRONIC DEVICES, AND RELATED SYSTEMSApril 2022March 2025Allow3511NoNo
17770744CIRCUIT BOARD ASSEMBLY, PHOTOSENSITIVE ASSEMBLY, CAMERA MODULE, AND PREPARATION METHODS FOR CIRCUIT BOARD ASSEMBLY AND PHOTOSENSITIVE ASSEMBLYApril 2022February 2025Allow3410NoNo
17725750IMAGE SENSORApril 2022August 2024Allow2700NoNo
17726515Power Device and Manufacturing Method ThereofApril 2022August 2024Allow2800NoNo
17724758SEMICONDUCTOR LIGHT EMITTING DEVICE AND SEMICONDUCTOR LIGHT EMITTING DEVICE ARRAYApril 2022January 2025Allow3310YesNo
17719502METHODS AND APPARATUS FOR SELECTIVE ETCH STOP CAPPING AND SELECTIVE VIA OPEN FOR FULLY LANDED VIA ON UNDERLYING METALApril 2022March 2025Allow3510YesNo
17715103SEMICONDUCTOR PACKAGE AND METHOD OF FABRICATING THE SAMEApril 2022August 2024Allow2800NoNo
17766770METHOD FOR MANUFACTURING MIRROR DEVICEApril 2022December 2024Allow3210NoNo
17710517METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES AND SEMICONDUCTOR DEVICESMarch 2022February 2025Allow3510NoNo
17710627SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAMEMarch 2022April 2025Allow3611NoNo
17706888RF SWITCH DEVICE WITH A SIDEWALL SPACER HAVING A LOW DIELECTRIC CONSTANTMarch 2022September 2023Allow1810YesNo
17707002SEMICONDUCTOR PACKAGE AND METHOD OF MANUFACTURING SAMEMarch 2022July 2024Allow2800NoNo
17707942SEMICONDUCTOR DEVICEMarch 2022August 2023Allow1710YesNo
17764425ELECTROLUMINESCENT DEVICE, DISPLAY SUBSTRATE, AND DISPLAY APPARATUSMarch 2022December 2024Allow3210NoNo
17706301SILICON CARBIDE SEMICONDUCTOR DEVICEMarch 2022June 2024Allow2700NoNo
17705158METHOD AND SYSTEM FOR FORMING SILICON NITRIDE LAYER USING LOW RADIO FREQUENCY PLASMA PROCESSMarch 2022June 2025Allow3910NoNo
17763536NITRIDE SEMICONDUCTOR DEVICEMarch 2022December 2024Allow3210NoNo
17693204INTEGRATED CIRCUIT WITH NANOSTRUCTURE TRANSISTORS AND BOTTOM DIELECTRIC INSULATORSMarch 2022February 2025Allow3611YesNo
17678212SEMICONDUCTOR DEVICE WITH PROGRAMMABLE STRUCTURE AND METHOD FOR FABRICATING THE SAMEFebruary 2022September 2024Allow3110NoNo
17672939INTEGRATED CIRCUIT DEVICESFebruary 2022May 2023Allow1500NoNo
17635399DISPLAY PANEL AND MOBILE TERMINALFebruary 2022February 2025Allow3620NoNo
17671222Selective Deposition of Barrier LayerFebruary 2022November 2023Allow2120NoNo
17667700DEPOSITION OF SILICON-BASED DIELECTRIC FILMSFebruary 2022April 2025Allow3810NoNo
17584185JBS DEVICE WITH IMPROVED ELECTRICAL PERFORMANCES, AND MANUFACTURING PROCESS OF THE JBS DEVICEJanuary 2022September 2024Allow3210NoNo
17572137LASER-ASSISTED METHOD FOR PARTING CRYSTALLINE MATERIALJanuary 2022October 2023Allow2111NoNo
17621643METHOD FOR TRANSFERRING LIGHT-EMITTING DIODE AND LIGHT-EMITTING BASE PLATEDecember 2021August 2024Allow3110NoNo
17643839PASSIVATION LAYER AND PREPARATION METHOD THEREOF, FLEXIBLE THIN FILM TRANSISTOR AND PREPARATION METHOD THEREOF, AND ARRAY SUBSTRATEDecember 2021March 2024Allow2700NoNo
17643416PCM CELL WITH NANOHEATER SURROUNDED WITH AIRGAPSDecember 2021January 2025Allow3700NoNo
17457819METHOD FOR MANUFACTURING MEMORY AND MEMORYDecember 2021June 2024Allow3000NoNo
17542740EARLY-IMPACT MOTION LIMITER FOR MEMS DEVICEDecember 2021February 2024Allow2700NoNo
17616339PEROVSKITE INK FORMULATIONSDecember 2021September 2024Allow3410NoNo
17541790SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAMEDecember 2021May 2024Allow3000NoNo
17457273METHOD FOR MANUFACTURING SEMICONDUCTOR STRUCTUREDecember 2021May 2024Allow2900NoNo
17539260DEVICE AND METHODDecember 2021December 2024Abandon3710NoNo
17456009SEMICONDUCTOR STRUCTURE AND METHOD FOR MANUFACTURING THE SAMENovember 2021July 2024Allow3210NoNo
17456071Method for Manufacturing Semiconductor StructureNovember 2021April 2024Allow2900NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner SARKAR, ASOK K.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
7
Examiner Affirmed
6
(85.7%)
Examiner Reversed
1
(14.3%)
Reversal Percentile
25.0%
Lower than average

What This Means

With a 14.3% 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
26
Allowed After Appeal Filing
7
(26.9%)
Not Allowed After Appeal Filing
19
(73.1%)
Filing Benefit Percentile
36.2%
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, 26.9% 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 SARKAR, ASOK K - Prosecution Strategy Guide

Executive Summary

Examiner SARKAR, ASOK K works in Art Unit 2891 and has examined 1,643 patent applications in our dataset. With an allowance rate of 91.4%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 18 months.

Allowance Patterns

Examiner SARKAR, ASOK K's allowance rate of 91.4% places them in the 75% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by SARKAR, ASOK K receive 1.02 office actions before reaching final disposition. This places the examiner in the 13% 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 SARKAR, ASOK K is 18 months. This places the examiner in the 95% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +0.4% benefit to allowance rate for applications examined by SARKAR, ASOK K. This interview benefit is in the 13% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 39.6% of applications are subsequently allowed. This success rate is in the 89% percentile among all examiners. Strategic Insight: RCEs are highly effective with this examiner compared to others. If you receive a final rejection, filing an RCE with substantive amendments or arguments has a strong likelihood of success.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 39.6% of cases where such amendments are filed. This entry rate is in the 53% 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, 166.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 91% 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 74.1% of appeals filed. This is in the 58% percentile among all examiners. Of these withdrawals, 60.0% 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, 46.8% are granted (fully or in part). This grant rate is in the 54% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 7.1% of allowed cases (in the 93% 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 0.7% of allowed cases (in the 52% 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:

  • RCEs are effective: This examiner has a high allowance rate after RCE compared to others. If you receive a final rejection and have substantive amendments or arguments, an RCE is likely to be successful.
  • 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.
  • 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.