USPTO Examiner CHOE HENRY - Art Unit 2843

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19082745METHOD AND STANDARD MODULE FOR AMPLIFYING PULSED POWERMarch 2025April 2025Allow100NoNo
18973167COMMON-EMITTER AMPLIFIER WITH UNILATERAL PRE-EMBEDDING INDUCTORSDecember 2024February 2025Allow200NoNo
18957798Semi-log preamp with switched gainsNovember 2024January 2025Allow100NoNo
18895976POWER AMPLIFIER SEMICONDUCTOR DEVICESeptember 2024February 2025Allow400NoNo
18814260POWER AMPLIFIER AND WIRELESS TRANSMITTERAugust 2024March 2025Allow720NoNo
18811100HARMONIC CONTROL-BASED CLASS-J DISTRIBUTED POWER AMPLIFIER AND OPTIMIZATION METHOD THEREOFAugust 2024October 2024Allow200NoNo
18731838MULTI-MODAL AUDIO AMPLIFIER AND RELATED SYSTEMJune 2024July 2025Allow1310NoNo
18732091SYSTEMS AND METHODS FOR MODULAR POWER AMPLIFIERSJune 2024March 2025Allow900NoNo
18657220RADIO FREQUENCY (RF) POWER MODULE HAVING A HIGH FREQUENCY SWITCHING ELECTRONIC POWER CONDITIONER COMBINED WITH A MILLIMETER WAVE TO TERAHERTZ VACUUM ELECTRONIC DEVICEMay 2024August 2024Allow310NoNo
18653676VOICE ACTIVITY DETECTION SYSTEM AND ACOUSTIC FEATURE EXTRACTION CIRCUIT THEREOFMay 2024January 2025Allow810NoNo
18646024MULTI-LEVEL ENVELOPE TRACKING SYSTEMS WITH SEPARATE DC AND AC PATHSApril 2024February 2025Allow1010NoNo
18642579OUTPUT MATCHING CIRCUIT WITH SUPPRESSED HARMONICSApril 2024February 2025Allow1010NoNo
18629835PROGRAMMABLE GAIN AMPLIFIER WITH ACTIVE CHARGE-INJECTION/CHARGE-LEAKAGE SUPPRESSIONApril 2024October 2024Allow700NoNo
18698569DIRECTIONAL COUPLER HAVING WIDE BAND HIGH DIRECTIVITY AND FLAT FREQUENCY RESPONSEApril 2024July 2024Allow300NoNo
18609671SYSTEMS AND METHODS FOR PROVIDING AN ENVELOPE TRACKING SUPPLY VOLTAGEMarch 2024February 2025Allow1110NoNo
18583589HIGH FREQUENCY POWER AMPLIFICATION DEVICEFebruary 2024November 2024Allow910YesNo
18442884APPARATUS AND METHODS FOR ADAPTIVE POWER AMPLIFIER BIASINGFebruary 2024January 2025Allow1110NoNo
18424465LOW NOISE AMPLIFIERS WITH LOW NOISE FIGUREJanuary 2024August 2024Allow700NoNo
18411830Semiconductor Device, Semiconductor Wafer, and Electronic DeviceJanuary 2024April 2025Allow1520NoNo
18402458DUAL DRIVE DOHERTY POWER AMPLIFIER AND SYSTEMS AND METHODS RELATING TO SAMEJanuary 2024December 2024Allow1110NoNo
18517065GROUP III NITRIDE-BASED RADIO FREQUENCY TRANSISTOR AMPLIFIERS HAVING SOURCE, GATE AND/OR DRAIN CONDUCTIVE VIASNovember 2023August 2024Allow910NoNo
18506246POWER AMPLIFIER CIRCUITNovember 2023September 2024Allow1010NoNo
18502940Two-Stage LNA with Mutual CouplingNovember 2023August 2024Allow1010NoNo
18492544DUAL VOLTAGE SWITCHED BRANCH LNA ARCHITECTUREOctober 2023June 2024Allow810NoNo
18287842AMPLIFIER DEVICE, AUDIO DEVICE, AND METHOD FOR CONTROLLING AMPLIFIER DEVICEOctober 2023April 2024Allow600NoNo
18483877WAVEFORM-TAILORED AVERAGE POWER TRACKINGOctober 2023November 2024Allow1310NoNo
18377464POWER AMPLIFIER OUTPUT MATCHINGOctober 2023February 2025Allow1610NoNo
18239631POWER AMPLIFIER ANTENNA STRUCTUREAugust 2023January 2025Allow1710NoNo
18449963SYMMETRICAL DOHERTY POWER AMPLIFIER HAVING IMPROVED EFFICIENCYAugust 2023April 2025Allow2030YesNo
18447207Gate Drivers for Stacked Transistor AmplifiersAugust 2023January 2025Allow1710NoNo
18232343SYSTEMS AND METHODS FOR SUPPRESSING AND MITIGATING HARMONIC DISTORTION IN A CIRCUITAugust 2023August 2024Allow1210NoNo
18446073MULTI-LEVEL ENVELOPE TRACKING SYSTEMS WITH ADJUSTED VOLTAGE STEPSAugust 2023July 2024Allow1110NoNo
18264548RADIO-FREQUENCY POWER AMPLIFIER DEVICEAugust 2023November 2023Allow300NoNo
18360849CIRCUIT AND METHOD TO ENHANCE EFFICIENCY OF SEMICONDUCTOR DEVICEJuly 2023July 2024Allow1210NoNo
18357989NOISE DETECTING CIRCUIT AND ASSOCIATED SYSTEM AND METHODJuly 2023June 2024Allow1110NoNo
18353719AMPLIFIER WITH INTEGRATED GAIN SLOPE EQUALIZERJuly 2023July 2024Allow1210NoNo
18203197AVERAGE POWER TRACKING POWER MANAGEMENT CIRCUITMay 2023January 2025Allow1910NoNo
18254607ELECTRONIC INTEGRATION CIRCUIT HAVING OFFSET AND COLLECTED CHARGE REDUCTION CIRCUITRIES AND ASSOCIATED METHODSMay 2023January 2024Allow810NoNo
18321668LOAD INSENSITIVE POWER DETECTIONMay 2023April 2025Allow2310NoNo
18318879OPERATIONAL AMPLIFIER AND ELECTRONIC SYSTEMMay 2023April 2024Allow1120NoNo
18310415APPARATUS AND METHOD FOR SYNCHRONIZING POWER CIRCUITS WITH COHERENT RF SIGNALS TO FORM A STEERED COMPOSITE RF SIGNALMay 2023January 2025Allow2140NoNo
18034085Blocking signal cancellation low noise amplifier systemApril 2023September 2023Allow500NoNo
18308112ENVELOPE TRACKING SYSTEM WITH MODELING OF A POWER AMPLIFIER SUPPLY VOLTAGE FILTERApril 2023April 2024Allow1210NoNo
18305590SWITCHING POWER SUPPLY, SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE, AND DIFFERENTIAL INPUT CIRCUITApril 2023April 2024Allow1110NoNo
18300726MULTI-LEVEL ENVELOPE TRACKING WITH ANALOG INTERFACEApril 2023March 2024Allow1110NoNo
18300256SWITCH WITH ELECTROSTATIC DISCHARGE (ESD) PROTECTIONApril 2023January 2024Allow1010NoNo
18132422DIFFERENTIAL POWER AMPLIFIERApril 2023October 2023Allow600NoNo
18297526MONOLITHIC MICROWAVE INTEGRATED CIRCUIT FRONT-END MODULEApril 2023April 2024Allow1210NoNo
18191699WIDEBAND AUXILIARY INPUT FOR LOW NOISE AMPLIFIERSMarch 2023January 2025Allow2221NoNo
18186915PROGRAMMABLE OPTIMIZED BAND SWITCHING LNAMarch 2023April 2025Allow2410NoNo
18184571DUAL DRIVE DOHERTY POWER AMPLIFIER AND SYSTEMS AND METHODS RELATING TO SAMEMarch 2023August 2023Allow510NoNo
18174956APPARATUS AND METHODS FOR TRUE POWER DETECTIONFebruary 2023January 2024Allow1010NoNo
18109382DUAL-BAND COUPLING LOW-NOISE AMPLIFYING CIRCUIT AND AMPLIFIERFebruary 2023April 2023Allow200NoNo
18168346DUAL VOLTAGE SWITCHED BRANCH LNA ARCHITECTUREFebruary 2023July 2023Allow610NoNo
18168064Source Switch Split LNA Design with Thin Cascodes and High Supply VoltageFebruary 2023March 2024Allow1320NoNo
18041203High-Speed Transimpedance Amplifier with Bandwidth Extension Feature over Full Temperature Range and Bandwidth Extension MethodFebruary 2023July 2023Allow500NoNo
18157998LOW NOISE AMPLIFIERS WITH LOW NOISE FIGUREJanuary 2023November 2023Allow910NoNo
18003700Comparator, Oscillator, and Power ConverterDecember 2022June 2023Allow600NoNo
18089534AMPLIFICATION DEVICE INCLUDING AN AMPLIFICATION UNIT AND A COUPLER USED TO REDUCE INSERTION LOSS AND CIRCUIT AREADecember 2022June 2025Allow3000NoNo
18081014AMPLIFIER CIRCUITDecember 2022June 2025Allow3000NoNo
18001846CURRENT SOURCE CIRCUIT AND ELECTRONIC DEVICEDecember 2022May 2025Allow2900NoNo
18077917Analog Signal Voltage Controlled AmplifierDecember 2022June 2024Allow1800NoNo
18063565LINEAR CLASS-AB VOLTAGE TO CURRENT CONVERTERDecember 2022April 2023Allow400NoNo
17993498Switched Capacitor ModulatorNovember 2022April 2024Allow1620NoNo
18055439RADIO-FREQUENCY CIRCUIT AND COMMUNICATION DEVICENovember 2022May 2025Allow3000NoNo
18054933RADIO-FREQUENCY CIRCUIT AND COMMUNICATION DEVICENovember 2022May 2025Allow3000NoNo
18054189Envelope Detector And Method ThereofNovember 2022June 2025Allow3100NoNo
18053296METAMATERIAL BASED POWER AMPLIFIER MODULENovember 2022June 2024Allow1920NoNo
18052779POWER AMPLIFIER DISTORTION NETWORKNovember 2022March 2024Allow1620NoNo
17921750Ka-BAND GALLIUM-NITRIDE (GaN) MONOLITHIC-MICROWAVE INTEGRATED CIRCUIT (MMIC) POWER AMPLIFIER CIRCUIT AND AMPLIFIEROctober 2022April 2025Allow3000NoNo
17972177CIRCUIT AND METHOD FOR BIASING AN AMPLIFIEROctober 2022May 2025Allow3100NoNo
18049002PHASE SHIFT MATCHING FOR MULTI-PATH AMPLIFIERSOctober 2022May 2025Allow3000NoNo
17971490LOW-NOISE AMPLIFIER (LNA) INPUT IMPEDANCE ADJUSTMENT CIRCUITOctober 2022April 2025Allow3000NoNo
18046502DIFFERENTIAL MILLIMETER WAVE COMMUNICATION ARCHITECTURE AND ELECTRONIC DEVICEOctober 2022April 2023Allow610NoNo
18045239HIGHLY EFFICIENT DUAL-DRIVE POWER AMPLIFIER FOR HIGH RELIABILITY APPLICATIONSOctober 2022April 2024Allow1830YesNo
17936457NOISE DETECTING CIRCUIT AND ASSOCIATED SYSTEM AND METHODSeptember 2022June 2023Allow810NoNo
17936458METHOD AND SYSTEM FOR COMPONENT MISMATCH COMPENSATIONSeptember 2022April 2025Allow3000NoNo
17935520POWER AMPLIFIER OUTPUT MATCHING WITH SUPPRESSED HARMONICSSeptember 2022January 2024Allow1610NoNo
17933340CASCODE GAIN BOOSTING AND LINEAR GAIN CONTROL USING GATE RESISTORSeptember 2022June 2023Allow910NoNo
17946170MULTI-VOLTAGE GENERATION CIRCUITSeptember 2022April 2025Allow3100NoNo
17929708MULTI-FREQUENCY LOW NOISE AMPLIFIERSeptember 2022April 2025Allow3100NoNo
17902823Split-Steer Amplifier with Invertible OutputSeptember 2022June 2023Allow910NoNo
17823122Packaged power amplifier device with air cavity over dieAugust 2022March 2025Allow3100NoNo
17823116PACKAGED POWER AMPLIFIER DEVICEAugust 2022April 2025Allow3100NoNo
17892644POWER AMPLIFIER DEVICEAugust 2022February 2023Allow610NoNo
17891249PUSH-PUSH FREQUENCY DOUBLING SCHEME AND CIRCUIT BASED ON COMPLEMENTARY TRANSISTORSAugust 2022February 2023Allow500NoNo
17815288POWER AMPLIFICATION CIRCUIT, RADIO-FREQUENCY CIRCUIT, AND COMMUNICATION DEVICEJuly 2022June 2025Allow3510NoNo
17814658POWER AMPLIFIER SUPPLY NETWORKS WITH HARMONIC TERMINATIONSJuly 2022May 2025Allow3400NoNo
17862511POWER SUPPLY SWITCH CIRCUIT AND OPERATING METHOD THEREOFJuly 2022May 2025Allow3400NoNo
17855443Wideband Coupled Input Impedance Matching LNA ArchitectureJune 2022May 2025Allow3400NoNo
17789514RADIO-FREQUENCY DIFFERENTIAL AMPLIFYING CIRCUIT AND RADIO-FREQUENCY MODULEJune 2022June 2025Allow3510NoNo
17807677MONOLITHIC MICROWAVE INTEGRATED CIRCUIT FRONT-END MODULEJune 2022January 2023Allow700NoNo
17807342BIASING OF CASCODE POWER AMPLIFIERS FOR MULTIPLE OPERATING MODESJune 2022March 2025Allow3300NoNo
17807188POWER AMPLIFICATION CIRCUIT, RADIO-FREQUENCY CIRCUIT, AND COMMUNICATION DEVICEJune 2022June 2025Allow3610NoNo
17838204Combined Class D Amplifier and Buck RegulatorJune 2022May 2024Allow2300NoNo
17805277TRANSCEIVER CIRCUITJune 2022October 2023Allow1610NoNo
17805259POWER AMPLIFIER CIRCUIT, HIGH FREQUENCY CIRCUIT, AND COMMUNICATION APPARATUSJune 2022December 2024Allow3000NoNo
17805168SIGNAL AMPLIFICATION CIRCUITRYJune 2022January 2025Allow3100NoNo
17826311VOLTAGE RIPPLE REDUCTION IN A POWER MANAGEMENT CIRCUITMay 2022December 2024Allow3100NoNo
17752440Two-Stage LNA with Mutual CouplingMay 2022July 2023Allow1410NoNo

Appeals Overview

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

Strategic Value of Filing an Appeal

Total Appeal Filings
31
Allowed After Appeal Filing
14
(45.2%)
Not Allowed After Appeal Filing
17
(54.8%)
Filing Benefit Percentile
71.6%
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, 45.2% 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

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner CHOE, HENRY - Prosecution Strategy Guide

Executive Summary

Examiner CHOE, HENRY works in Art Unit 2843 and has examined 881 patent applications in our dataset. With an allowance rate of 97.4%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 19 months.

Allowance Patterns

Examiner CHOE, HENRY's allowance rate of 97.4% places them in the 92% percentile among all USPTO examiners. This examiner is more likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by CHOE, HENRY receive 0.89 office actions before reaching final disposition. This places the examiner in the 9% 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 CHOE, HENRY is 19 months. This places the examiner in the 92% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a -2.8% benefit to allowance rate for applications examined by CHOE, HENRY. This interview benefit is in the 5% 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, 40.6% of applications are subsequently allowed. This success rate is in the 91% 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 53.1% of cases where such amendments are filed. This entry rate is in the 74% 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, 107.7% 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 100.0% of appeals filed. This is in the 92% percentile among all examiners. Of these withdrawals, 38.5% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner frequently reconsiders rejections during the appeal process compared to other examiners. Per MPEP § 1207.01, all appeals must go through a mandatory appeal conference. Filing a Notice of Appeal may prompt favorable reconsideration even before you file an Appeal Brief.

Petition Practice

When applicants file petitions regarding this examiner's actions, 38.6% are granted (fully or in part). This grant rate is in the 36% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.9% of allowed cases (in the 67% percentile). This examiner makes examiner's amendments more often than average to place applications in condition for allowance (MPEP § 1302.04).

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.2% of allowed cases (in the 45% 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:

  • 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.
  • Appeal filing as negotiation tool: This examiner frequently reconsiders rejections during the appeal process. Filing a Notice of Appeal may prompt favorable reconsideration during the mandatory appeal conference.

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.