USPTO Examiner NGUYEN HIEU P - Art Unit 2843

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19237948SHADOW RESISTANCE-TO-FREQUENCY AND RESISTANCE-TO-TIME CONVERTERJune 2025August 2025Allow200NoNo
18834318HIGH-PERFORMANCE AUDIO AMPLIFIERJuly 2024March 2025Allow800NoNo
18591765SYSTEM AND A METHOD FOR FEEDBACK COMPRESSION THROUGH SAMPLE COMBINING IN DIGITAL PREDISTORTIONFebruary 2024May 2024Allow200NoNo
18443682Generation And Synchronization Of Pulse-Width Modulated (PWM) Waveforms For Radio-Frequency (RF) ApplicationsFebruary 2024January 2026Allow2300NoNo
18415136Adaptive DC-DC Boost Converter ArrangementJanuary 2024August 2025Allow1910NoNo
18405323ENHANCED CURRENT MIRROR FOR MULTIPLE SUPPLY VOLTAGESJanuary 2024November 2025Allow2320NoNo
18392366DYNAMIC TRANSLINEAR CURRENT MULTIPLIER FOR ANALOG COMPUTINGDecember 2023March 2025Allow1400NoNo
18522321COMPENSATION OF THERMALLY INDUCED VOLTAGE ERRORSNovember 2023March 2025Allow1610NoNo
18388750POWER AMPLIFIER WITH VARIABLE BIAS IMPEDANCENovember 2023April 2025Allow1710NoNo
18379937ELECTRONIC DEVICE COMPRISING POWER AMPLIFIER AND METHOD FOR OPERATING SAMEOctober 2023March 2026Allow2900NoNo
18484660DOHERTY AMPLIFIER CIRCUITOctober 2023March 2026Allow2900NoNo
18377674POWER AMPLIFIER MODULE WITH INTERLEAVED WIREBONDSOctober 2023March 2026Allow2900NoNo
18475480OUTPUT COMMON-MODE CONTROL LOOP FOR FAST AND SMOOTH TRANSITION IN MULTI-MODE AMPLIFIERSSeptember 2023September 2025Allow2410NoNo
18465910Radio-frequency Power Amplifier with Intermodulation Distortion MitigationSeptember 2023September 2024Allow1210NoNo
18237921Amplifier circuit having reset mechanismAugust 2023January 2026Allow2900NoNo
18449221WIDEBAND NOISE SHAPING SPLIT LNA ARCHITECTUREAugust 2023January 2026Allow2900NoNo
18230575Transformer Power Combiner Apparatus and Control MethodAugust 2023March 2026Allow3110NoNo
18360433HIGH EFFICIENCY AMPLIFIER WITH OUTPUT SIGNAL BRACKETING DYNAMIC SUPPLIESJuly 2023January 2026Allow3000NoNo
18355588CLASS-AB STABILIZATIONJuly 2023March 2025Allow2010NoNo
18268475CIRCUIT FOR REMOVING OFFSET OUTPUT VOLTAGE, AND ELECTRONIC DEVICE COMPRISING SAMEJune 2023October 2025Allow2800NoNo
18335583DIGITAL PRE-DISTORTION FOR FREQUENCY RANGE 2 SYSTEMSJune 2023December 2025Allow3000NoNo
18206331SWITCHING CIRCUIT, CORRESPONDING DEVICE AND METHODJune 2023October 2025Allow2800NoNo
18204356SPLICE-POINT DETERMINED ZERO-CROSSING MANAGEMENT IN AUDIO AMPLIFIERSMay 2023September 2024Allow1610NoNo
18316896BIAS TECHNIQUES FOR AMPLIFIERS WITH MIXED POLARITY TRANSISTOR STACKSMay 2023December 2024Allow1910NoNo
18251621SYSTEM AND METHOD FOR REDUCTION IN POWER SUPPLY RAIL PUMPING IN CLASS D AUDIO AMPLIFIERS USING DUAL REGULATED DC-DC CONVERTERSMay 2023February 2026Allow3410NoNo
18309421CASCODED HIGH-VOLTAGE AMPLIFIERApril 2023November 2025Allow3100NoNo
18309558AMPLIFIER WITH CASCODE ARRANGEMENTApril 2023March 2026Allow3510NoNo
18306742AMPLIFIERSApril 2023November 2025Allow3000NoNo
18303750NON-LINEAR FUNCTION IN AN EARLY-SAMPLED HYBRID MULTI-LEVEL CONVERTER AMPLIFIER SYSTEMApril 2023October 2025Allow3000NoNo
18298594BIASED AMPLIFIERApril 2023September 2024Allow1700NoNo
18298626HIGH QUIESCENT CURRENT CONTROLApril 2023February 2025Allow2310NoNo
18125133AMPLIFYING CIRCUIT AND CHARGING METHOD WHICH CAN IMPROVE ABNORMAL SOUNDMarch 2023January 2026Allow3410NoNo
18188073CLIPPING PREVENTION IN SWITCHED MODE DRIVERSMarch 2023February 2026Allow3510NoNo
18187657SIGNAL AMPLIFYING CIRCUIT AND SIGNAL PROCESSING SYSTEM AND ANALOG-TO-DIGITAL CONVERTING SYSTEM COMPRISING THE SAMEMarch 2023February 2026Allow3510NoNo
18022659AMPLIFIERFebruary 2023January 2026Allow3510NoNo
18042009SEMICONDUCTOR CIRCUITFebruary 2023January 2026Allow3510NoNo
18109870HIGH-LINEARITY DYNAMIC AMPLIFIERFebruary 2023October 2025Allow3210NoNo
18168177AMPLIFIER WITH NON-LINEARITY CANCELLATIONFebruary 2023May 2024Allow1510NoNo
18163755RF Switch with Split Tunable Matching NetworkFebruary 2023March 2025Allow2510NoNo
18162875HIGH-FREQUENCY CIRCUIT AND COMMUNICATION DEVICEFebruary 2023January 2026Allow3510NoNo
18019077AMPLIFIER DEVICEJanuary 2023October 2025Allow3310NoNo
18099000Class D amplifier driving circuitJanuary 2023August 2025Allow3000NoNo
18092678RADIO-FREQUENCY AMPLIFIER CIRCUITS, DEVICES AND METHODSJanuary 2023March 2024Allow1420NoNo
18090756VOLTAGE BUFFERDecember 2022July 2025Allow3100NoNo
18090783FULL-BRIDGE CLASS D AMPLIFIERDecember 2022November 2025Allow3410NoNo
17758874SWITCHING AMPLIFIERDecember 2022November 2025Allow4010NoNo
18088091DYNAMIC PULSE WIDTH CONTROL SCHEME IN AMPLIFIERSDecember 2022December 2025Allow3610NoNo
18079840VARIABLE TRANSIMPEDANCE AMPLIFIER FOR LOW POWER, HIGH DYNAMIC RANGE, HIGH DATA RATE LINEAR APPLICATIONSDecember 2022June 2025Allow3000NoNo
18008694LINEARIZATION OF A NON-LINEAR ELECTRONIC DEVICEDecember 2022January 2026Allow3810NoNo
18070940FREQUENCY COMPENSATION IN AMPLIFIERS WITH LOCAL-FEEDBACK BUFFER STAGESNovember 2022June 2025Allow3000NoNo
18070081DC RESTORE SCHEME FOR CAPACITIVE SENSING AMPLIFIERS WITH OPTIMAL NOISE FILTERINGNovember 2022October 2025Allow3410NoNo
17927847CLASS D POWER AMPLIFICATION MODULATION SYSTEM FOR SELF-ADAPTIVE ADJUSTMENT OF AUDIO SIGNAL, METHOD, DEVICE, PROCESSOR AND STORAGE MEDIUMNovember 2022August 2023Allow900NoNo
17991809Level-shifting amplifier with gain error reductionNovember 2022January 2026Abandon3810NoNo
17926616DIFFERENTIAL SIGNAL AMPLIFICATION CIRCUIT, DIGITAL ISOLATOR, AND DIGITAL RECEIVERNovember 2022June 2025Allow3110NoNo
17990682Differential To Single-Ended Summation Circuit With Improved Common-Mode Rejection RatioNovember 2022May 2025Allow3000NoNo
17988918ANALOG AMPLIFIERNovember 2022October 2025Allow3510NoNo
17987985BROADBAND ON-CHIP NESTED-LOOP ALTERNATING CURRENT (AC)-COUPLING SYSTEMS AND METHODSNovember 2022June 2025Allow3110NoNo
18053241SEMICONDUCTOR DEVICE AND COMMUNICATION DEVICE COMPRISING THE SAMENovember 2022June 2025Allow3100NoNo
18052992CIRCUITNovember 2022December 2025Allow3710NoNo
17976514APPARATUS AND METHOD FOR CONTROLLING NON-LINEAR EFFECT OF POWER AMPLIFIEROctober 2022October 2025Allow3610NoNo
17919351Traveling wave parametric amplifierOctober 2022September 2024Allow2300NoNo
17963097Superconducting Amplification CircuitOctober 2022September 2024Allow2410NoNo
17938749AMPLIFIER UNITOctober 2022December 2025Allow3810NoNo
17937816CURRENT CONDITIONING APPARATUS WITH NFET CURRENT MIRROROctober 2022July 2025Allow3420NoNo
17937732POWER AMPLIFIER SYSTEM WITH REDUCED GAIN VARIATION FOR ENVELOPE TRACKING APPLICATIONSOctober 2022October 2025Allow3610NoNo
17936451SWITCHING AUDIO AMPLIFIER WITH IMPROVED VOLTAGE SUPPLY CONTROLSeptember 2022January 2025Allow2700NoNo
17915149DRIVER DEVICE FOR CLASS-D FULL BRIDGE AMPLIFIERSeptember 2022October 2025Allow3610NoNo
17955219PULSE-WIDTH MODULATION AUDIO AMPLIFIER HAVING COMPENSATED REGULATION LOOPSeptember 2022December 2024Allow2700NoNo
17955080MULTI-LEVEL OUTPUT DRIVER WITH HIGH-VOLTAGE OUTPUT PROTECTION FOR AUDIO AMPLIFIERSSeptember 2022August 2025Allow3510NoNo
17935629CLASS-D AMPLIFIER FOR REDUCING AUDIO DISTORTIONSeptember 2022January 2025Allow2700NoNo
17935599REFERENCE GENERATION CIRCUIT FOR MAINTAINING TEMPERATURE-TRACKED LINEARITY IN AMPLIFIER WITH ADJUSTABLE HIGH-FREQUENCY GAINSeptember 2022October 2024Allow2410NoNo
17948210POWER AMPLIFIER HAVING ADAPTIVE ARRAY SIZESeptember 2022October 2025Allow4510NoNo
17945652Power Amplifier Self-Heating Compensation CircuitSeptember 2022August 2024Allow2310NoNo
17932659LOW LOSS TRAVELLING WAVE PARAMETRIC DEVICES USING PLANAR CAPACITORSSeptember 2022January 2025Allow2800NoNo
17945811Compact Pulsed Power SuppliesSeptember 2022April 2023Allow710NoNo
17945751Acoustic ApparatusSeptember 2022May 2025Allow3210NoNo
17911019Voltage Current Conversion DeviceSeptember 2022April 2025Allow3100NoNo
17930561JUMP-START POWER AMPLIFIER BOOST CONVERTERSeptember 2022June 2024Allow2110NoNo
17940332MINIMIZING TOTAL HARMONIC DISTORTION AND POWER SUPPLY INDUCED INTERMODULATION DISTORTION IN A SINGLE-ENDED CLASS-D PULSE WIDTH MODULATION AMPLIFIERSeptember 2022June 2024Allow2120NoNo
17910057SEMICONDUCTOR DEVICE, AMPLIFIER, AND ELECTRONIC DEVICESeptember 2022September 2025Allow3610NoNo
17930061AMPLIFIER CIRCUIT AND SENSOR CIRCUITSeptember 2022April 2025Allow3100NoNo
17929729PUSH-PULL RADIO FREQUENCY POWER AMPLIFIER AND METHOD FOR CONTROLLING CIRCUITSeptember 2022September 2025Allow3710NoNo
17902295OVERCURRENT PROTECTION CIRCUIT, SEMICONDUCTOR DEVICE, ELECTRONIC APPARATUS, AND VEHICLESeptember 2022August 2025Abandon3510NoNo
17908508APPARATUSES AND METHODS INVOLVING AMPLIFICATION CIRCUIT WITH PUSH-PULL WAVESHAPING OPERATIONAugust 2022August 2025Allow3610NoNo
17897958METHODS AND APPARATUS TO REDUCE ERROR IN OPERATIONAL AMPLIFIERSAugust 2022May 2025Allow3310NoNo
17894712TRANSFER PRINTING FOR RF APPLICATIONSAugust 2022February 2025Allow3010NoNo
17890609POWER SUPPLY MODULATOR AND POWER SUPPLY MODULATION TYPE AMPLIFIERAugust 2022September 2025Allow3711NoNo
17880142MULTIPLE FEEDBACK FILTERAugust 2022April 2024Allow2110NoNo
17878456ERROR AMPLIFIER CIRCUITAugust 2022November 2024Allow2800NoNo
17877157AGING-AVERSE BANDWIDTH EXTENSION APPARATUSJuly 2022April 2025Allow3210NoNo
17877444AUDIO SIGNAL MODULATION AND AMPLIFICATION CIRCUITJuly 2022December 2024Allow2800NoNo
17875465POWER AMPLIFIERJuly 2022March 2025Allow3100NoNo
17874359CLASS D AMPLIFIER MODULEJuly 2022July 2025Abandon3610NoNo
17794722Amplifier Circuits and Methods of Operating an Amplifier CircuitJuly 2022January 2026Allow4220NoNo
17869111AMPLIFIER WITH VCO-BASED ADCJuly 2022April 2024Allow2110NoNo
17812217POWER AMPLIFIER CIRCUITJuly 2022August 2025Allow3710NoNo
17860981GAIN COMPENSATION CIRCUITJuly 2022November 2023Allow1600NoNo
17859304DEVICES AND METHODS TO CONTROL DYNAMIC AUDIO RANGE IN NON-BOOSTED AUDIO SYSTEMSJuly 2022May 2025Allow3410NoNo
17791430RECEPTION CIRCUITJuly 2022July 2025Allow3710NoNo
17858043Band-Pass Josephson Traveling Wave Parametric AmplifierJuly 2022December 2023Allow1720NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner NGUYEN, HIEU P.

Strategic Value of Filing an Appeal

Total Appeal Filings
6
Allowed After Appeal Filing
5
(83.3%)
Not Allowed After Appeal Filing
1
(16.7%)
Filing Benefit Percentile
95.3%
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, 83.3% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the top 25% across the USPTO, indicating that filing appeals is particularly effective here. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Strategic Recommendations

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

Examiner NGUYEN, HIEU P - Prosecution Strategy Guide

Executive Summary

Examiner NGUYEN, HIEU P works in Art Unit 2843 and has examined 516 patent applications in our dataset. With an allowance rate of 96.9%, 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 NGUYEN, HIEU P's allowance rate of 96.9% places them in the 87% 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 NGUYEN, HIEU P receive 1.00 office actions before reaching final disposition. This places the examiner in the 10% 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 NGUYEN, HIEU P is 19 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 +3.2% benefit to allowance rate for applications examined by NGUYEN, HIEU P. This interview benefit is in the 25% 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, 43.0% of applications are subsequently allowed. This success rate is in the 94% 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 56.5% of cases where such amendments are filed. This entry rate is in the 83% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 200.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 96% 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 93% percentile among all examiners. Of these withdrawals, 66.7% 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, 53.3% 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 0.4% of allowed cases (in the 58% 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 0.4% of allowed cases (in the 54% 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:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • 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.