USPTO Examiner LIU BENJAMIN T - Art Unit 2893

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
17132719ELECTRONIC DEVICEDecember 2020September 2022Allow2110NoNo
17133421SHALLOW ETCHING OF MICROLEDS FOR INCREASED LIGHT EXTRACTIONDecember 2020October 2022Allow2110NoNo
17125842WIRING STRUCTURE AND METHOD FOR MANUFACTURING THE SAMEDecember 2020March 2023Allow2711NoNo
17111456SEMICONDUCTOR PACKAGE HAVING RE-DISTRIBUTION LAYER STRUCTURE ON SUBSTRATE COMPONENTDecember 2020October 2024Abandon4741YesNo
17105890MICRO LED DISPLAY WITH PRINTED CIRCUIT BOARD ASSEMBLYNovember 2020September 2023Abandon3430NoNo
17085305THREE-DIMENSIONAL MEMORY DEVICES WITH SUPPORTING STRUCTURE FOR STAIRCASE REGIONOctober 2020January 2023Allow2620YesNo
17071364IMAGE SENSOR INCLUDING NANOSTRUCTURE COLOR FILTEROctober 2020December 2023Allow3830NoNo
17068804SEMICONDUCTOR DEVICE AND FABRICATION METHOD FOR THE SAMEOctober 2020July 2023Abandon3320NoNo
17064606SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAMEOctober 2020April 2023Allow3130NoNo
17039703SCHOTTKY DIODE INTEGRATED INTO SUPERJUNCTION POWER MOSFETSSeptember 2020August 2022Allow2201YesNo
16971556SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE IDENTIFICATION METHODAugust 2020April 2023Allow3220NoNo
16941439ORGANIC LIGHT EMITTING DIODE DISPLAY AND MANUFACTURING METHOD THEREOFJuly 2020March 2023Allow3220NoNo
16936921FORMATION METHOD OF SEMICONDUCTOR DEVICE STRUCTURE WITH GATE STACKSJuly 2020June 2024Allow4740NoNo
16926384DISPLAY DEVICEJuly 2020June 2023Allow3520NoNo
16946924ACTIVE STICTION RECOVERYJuly 2020March 2023Allow3220NoNo
16907793DISPLAY APPARATUS INCLUDING A THIN-FILM TRANSISTOR INCLUDING A SILICON SEMICONDUCTOR AND A THIN-FILM TRANSISTOR INCLUDING AN OXIDE SEMICONDUCTORJune 2020October 2022Allow2711NoNo
16898659METHOD FOR FORMING FIN FIELD EFFECT TRANSISTOR (FINFET) DEVICE STRUCTUREJune 2020September 2023Allow3930NoNo
16758167DISPLAY PANEL AND DISPLAY DEVICE APPLYING THE SAMEApril 2020October 2022Allow2910NoNo
16855757SYSTEM AND METHOD FOR APPLYING ELECTROMAGNETIC ENERGYApril 2020March 2023Allow3510NoNo
16853174EPITAXIAL STRUCTURE OF GA-FACE GROUP III NITRIDE, ACTIVE DEVICE, AND METHOD FOR FABRICATING THE SAMEApril 2020April 2023Abandon3620NoNo
16755660SEMICONDUCTOR ASSEMBLYApril 2020June 2023Allow3840YesNo
16846085SEMICONDUCTOR DEVICE PACKAGEApril 2020March 2023Allow3520YesNo
16840448DISPLAY DEVICE AND CHIP-ON-FILM STRUCTURE THEREOFApril 2020August 2022Allow2810NoNo
16839195Microwave-Based High-Throughput Material Processing Device with Concentric Rotary ChassisApril 2020May 2022Allow2600NoNo
16652394MICROWAVE COOKING DEVICE, CONTROL METHOD, AND STORAGE MEDIUMMarch 2020October 2022Allow3010NoNo
16651258MICROWAVE PROCESSING APPARATUS, MICROWAVE PROCESSING METHOD, AND CHEMICAL REACTION METHODMarch 2020May 2023Abandon3820NoNo
16813628Superconductor-Based TransistorMarch 2020June 2023Allow3930YesNo
16791742Semiconductor Device with Surge Current ProtectionFebruary 2020March 2022Allow2500NoNo
16783806THIN PROFILE POWER SEMICONDUCTOR DEVICE PACKAGE HAVING FACE-TO-FACE MOUNTED DICE AND NO INTERNAL BONDWIRESFebruary 2020February 2022Allow2410NoNo
16632488ACTUATOR STRUCTURE AND METHODJanuary 2020June 2023Abandon4020NoNo
16743568TUNNEL FIELD-EFFECT TRANSISTOR WITH REDUCED SUBTHRESHOLD SWINGJanuary 2020November 2022Allow3420YesNo
16743287METALLIC INTERCONNECT STRUCTURES WITH WRAP AROUND CAPPING LAYERSJanuary 2020June 2022Allow2910YesNo
16743637TUNNEL FIELD-EFFECT TRANSISTOR WITH REDUCED SUBTHRESHOLD SWINGJanuary 2020June 2023Allow4130YesNo
16743115METALLIC INTERCONNECT STRUCTURES WITH WRAP AROUND CAPPING LAYERSJanuary 2020February 2022Allow2510YesNo
16714440MEMS DEVICE AND MANUFACTURING METHOD THEREOFDecember 2019January 2022Allow2500NoNo
16695720OPTICAL COMPONENT AND OPTICAL MODULE USING THE SAMENovember 2019June 2023Abandon4330NoNo
16611841MICROELECTRONIC DEVICES DESIGNED WITH PACKAGE INTEGRATED TUNABLE FERROELECTRIC CAPACITORSNovember 2019March 2024Abandon5240NoNo
16676443SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAMENovember 2019January 2023Allow3821NoNo
16611547LIGHT EMITTING DEVICE, METHOD OF FABRICATING SAME AND METHOD OF CONTROLLING LIGHT EMISSIONNovember 2019March 2023Allow4030NoNo
16676371GAN-BASED, LATERAL-CONDUCTION, ELECTRONIC DEVICE WITH IMPROVED METALLIC LAYERS LAYOUTNovember 2019August 2023Allow4530YesNo
16676083HIGH-VOLTAGE P-CHANNEL FET BASED ON III-NITRIDE HETEROSTRUCTURESNovember 2019August 2022Allow3311NoNo
16670589MANUFACTURING METHOD OF DISPLAY APPARATUSOctober 2019September 2022Allow3520NoNo
16532096Electrically Actuated SwitchAugust 2019November 2021Allow2711NoNo
16521975CROSSBAR ARRAY CIRCUIT WITH 3D VERTICAL RRAMJuly 2019March 2022Abandon3251NoYes
16522187Surface Treatment Compositions and MethodsJuly 2019March 2024Abandon5541YesNo
16522635SYMMETRICAL LAYOUT STRUCTURE OF SEMICONDUCTOR DEVICEJuly 2019May 2023Abandon4630NoNo
16522448PIXEL UNIT, IMAGE SENSOR, MANUFACTURING METHOD THEREOF AND IMAGING DEVICEJuly 2019May 2022Abandon3401NoNo
16522310SEMICONDUCTOR MEMORY DEVICEJuly 2019May 2022Abandon3301NoNo
16522602SEMICONDUCTOR DEVICEJuly 2019February 2023Allow4330NoNo
16521906TRANSISTOR AND ELECTRONIC DEVICEJuly 2019June 2022Allow3530YesNo
16522112SEMICONDUCTOR PACKAGEJuly 2019June 2022Allow3530NoNo
16522233INTERCONNECT AND MEMORY STRUCTURES FORMED IN THE BEOLJuly 2019January 2022Allow3011NoNo
16522302WIRING BOARDJuly 2019February 2022Allow3010NoNo
16522038SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICEJuly 2019May 2022Allow3421YesNo
16522533IMAGE SENSOR INCLUDING ACTIVE REGIONSJuly 2019June 2023Allow4730NoNo
16522542INCREASING SELECTOR SURFACE AREA IN CROSSBAR ARRAY CIRCUITSJuly 2019August 2022Allow3711NoNo
16522472IMAGE SENSOR HAVING P-TYPE ISOLATION STRUCTUREJuly 2019May 2024Allow5740NoNo
16521957LIGHT EMITTING DISPLAY APPARATUSJuly 2019December 2021Allow2910NoNo
16515251Integrated Circuit Package and MethodJuly 2019March 2022Allow3231NoNo
16515926METALLIZATION LAYER FORMATION PROCESSJuly 2019January 2022Allow3021YesNo
16515394POWER CONVERTERJuly 2019May 2021Allow2210NoNo
16516122SEMICONDUCTOR DEVICE PACKAGE AND METHOD FOR MANUFACTURING THE SAMEJuly 2019April 2022Abandon3321NoNo
16510474STRUCTURE AND FORMATION METHOD OF PACKAGE STRUCTURE WITH UNDERFILLJuly 2019January 2022Allow3031NoNo
16510461HIGH ELECTRON MOBILITY TRANSISTOR DEVICES AND METHODS FOR FORMING THE SAMEJuly 2019August 2021Allow2521NoNo
16510448Package Lead Design with Grooves for Improved Dambar SeparationJuly 2019February 2022Allow3130NoNo
16510456MEMS MICROPHONE, METHOD OF MANUFACTURING THE SAME AND MEMS MICROPHONE PACKAGE INCLUDING THE SAMEJuly 2019August 2021Allow2511NoNo
16509820SEMICONDUCTOR MEMORY DEVICES INCLUDING SEPARATE UPPER AND LOWER BIT LINE SPACERSJuly 2019April 2021Allow2110NoNo
16510488SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICEJuly 2019December 2022Abandon4241NoNo
16502438DISPLAY DEVICEJuly 2019June 2020Allow1200NoNo
16421746WAFER TRANSFER UNIT AND WAFER TRANSFER SYSTEMMay 2019November 2021Allow3021NoNo
16421778Strain Tuning Individual Quantum Dot Emission Frequencies with Local Phase TransitionsMay 2019September 2021Allow2830NoNo
16421844OVERHEAT DETECTION SYSTEM AND INSULATION MUFF COMPRISING AN OVERHEAT DETECTION SYSTEMMay 2019October 2021Allow2921YesNo
16421556WAFER PROCESSING METHODMay 2019May 2022Allow3630YesNo
16421469METHOD FOR MANUFACTURING LIGHT EMITTING DEVICEMay 2019December 2020Allow1910NoNo
16421166PATTERNING OXIDATION RESISTANT ELECTRODE IN CROSSBAR ARRAY CIRCUITSMay 2019January 2021Abandon2010NoNo
16421358Multiple Zone Gas Injection For Control of Gas Phase RadicalsMay 2019November 2021Allow3021NoNo
16421268HIGH-RESOLUTION THREE-DIMENSIONAL PROFILING OF FEATURES IN ADVANCED SEMICONDUCTOR DEVICES IN A NON-DESTRUCTIVE MANNER USING ELECTRON BEAM SCANNING ELECTRON MICROSCOPYMay 2019May 2021Allow2420YesNo
16463552MULTILAYER CIRCUIT BOARD MANUFACTURING METHODMay 2019August 2022Allow3950YesNo
16463562MULTILAYER CIRCUIT BOARD MANUFACTURING METHODMay 2019August 2022Allow3950YesNo
16412660SUBSTRATE WITH A FIN REGION COMPRISING A STEPPED HEIGHT STRUCTUREMay 2019October 2021Abandon2920YesNo
16363659SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAMEMarch 2019December 2020Allow2110YesNo
16290306METAL CUT PATTERNING AND ETCHING TO MINIMIZE INTERLAYER DIELECTRIC LAYER LOSSMarch 2019May 2021Allow2721YesNo
16279680LIGHT EMITTING DEVICE WITH REFLECTIVE SIDEWALLFebruary 2019April 2022Allow3840YesNo
16226580VERTICAL MICROBOLOMETER CONTACT SYSTEMS AND METHODSDecember 2018February 2021Allow2510NoNo
16047884Interconnect Structure and Methods ThereofJuly 2018September 2021Allow3721NoNo
16046807SUPERCONDUCTOR-BASED TRANSISTORJuly 2018October 2019Allow1521YesNo
16040429Four D Device Process and StructureJuly 2018April 2022Allow4521YesNo
16037776SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAMEJuly 2018April 2020Allow2100NoNo
16031412PHOTODIODEJuly 2018May 2021Allow3430YesNo
16030973MIXED UBM AND MIXED PITCH ON A SINGLE DIEJuly 2018December 2021Allow4250YesNo
16014009MEMORY DEVICEJune 2018January 2021Allow3110NoNo
15996696DISPLAY DEVICEJune 2018May 2021Abandon3530NoNo
15996549INTEGRATED CIRCUIT CHIP PACKAGE HAVING REDUCED CONTACT PAD SIZEJune 2018July 2020Abandon2521NoNo
15781326ELECTRONIC POWER MODULEJune 2018September 2021Allow4040NoNo
15781301TRANSISTOR, SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS, AND METHOD FOR PRODUCING TRANSISTORJune 2018May 2021Allow3520NoNo
15781388LIGHT-EMITTING DEVICE AND DISPLAY APPARATUSJune 2018August 2021Allow3930NoNo
15996638TUNNEL FIELD-EFFECT TRANSISTOR WITH REDUCED SUBTHRESHOLD SWINGJune 2018November 2019Allow1811NoNo
15996571LIGHT-EMITTING ELEMENT AND DISPLAY DEVICE HAVING THE LIGHT-EMITTING ELEMENTJune 2018December 2021Abandon4231YesNo
15996539SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAMEJune 2018April 2021Allow3451YesNo
15996524SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAMEJune 2018September 2020Allow2741YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LIU, BENJAMIN T.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
7
Examiner Affirmed
3
(42.9%)
Examiner Reversed
4
(57.1%)
Reversal Percentile
82.1%
Higher than average

What This Means

With a 57.1% 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
18
Allowed After Appeal Filing
6
(33.3%)
Not Allowed After Appeal Filing
12
(66.7%)
Filing Benefit Percentile
54.4%
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 LIU, BENJAMIN T - Prosecution Strategy Guide

Executive Summary

Examiner LIU, BENJAMIN T works in Art Unit 2893 and has examined 607 patent applications in our dataset. With an allowance rate of 73.0%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 32 months.

Allowance Patterns

Examiner LIU, BENJAMIN T's allowance rate of 73.0% places them in the 38% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by LIU, BENJAMIN T receive 2.46 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 LIU, BENJAMIN T is 32 months. This places the examiner in the 52% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +16.2% benefit to allowance rate for applications examined by LIU, BENJAMIN T. This interview benefit is in the 56% 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, 24.7% of applications are subsequently allowed. This success rate is in the 40% 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 32.8% of cases where such amendments are filed. This entry rate is in the 50% 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, 33.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 34% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 58.8% of appeals filed. This is in the 34% percentile among all examiners. Of these withdrawals, 20.0% 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, 68.8% are granted (fully or in part). This grant rate is in the 75% 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 4.3% of allowed cases (in the 84% 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 3.2% of allowed cases (in the 76% 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:

  • 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.