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
18834318HIGH-PERFORMANCE AUDIO AMPLIFIERJuly 2024March 2025Allow800NoNo
18591765SYSTEM AND A METHOD FOR FEEDBACK COMPRESSION THROUGH SAMPLE COMBINING IN DIGITAL PREDISTORTIONFebruary 2024May 2024Allow200NoNo
18392366DYNAMIC TRANSLINEAR CURRENT MULTIPLIER FOR ANALOG COMPUTINGDecember 2023March 2025Allow1400NoNo
18522321COMPENSATION OF THERMALLY INDUCED VOLTAGE ERRORSNovember 2023March 2025Allow1600NoNo
18388750POWER AMPLIFIER WITH VARIABLE BIAS IMPEDANCENovember 2023April 2025Allow1710NoNo
18465910Radio-frequency Power Amplifier with Intermodulation Distortion MitigationSeptember 2023September 2024Allow1210NoNo
18355588CLASS-AB STABILIZATIONJuly 2023March 2025Allow2010NoNo
18204356SPLICE-POINT DETERMINED ZERO-CROSSING MANAGEMENT IN AUDIO AMPLIFIERSMay 2023September 2024Allow1610NoNo
18316896BIAS TECHNIQUES FOR AMPLIFIERS WITH MIXED POLARITY TRANSISTOR STACKSMay 2023December 2024Allow1910NoNo
18298594BIASED AMPLIFIERApril 2023September 2024Allow1700NoNo
18298626HIGH QUIESCENT CURRENT CONTROLApril 2023February 2025Allow2310NoNo
18168177AMPLIFIER WITH NON-LINEARITY CANCELLATIONFebruary 2023May 2024Allow1510NoNo
18163755RF Switch with Split Tunable Matching NetworkFebruary 2023March 2025Allow2510NoNo
18092678RADIO-FREQUENCY AMPLIFIER CIRCUITS, DEVICES AND METHODSJanuary 2023March 2024Allow1420NoNo
18079840VARIABLE TRANSIMPEDANCE AMPLIFIER FOR LOW POWER, HIGH DYNAMIC RANGE, HIGH DATA RATE LINEAR APPLICATIONSDecember 2022June 2025Allow3000NoNo
18070940FREQUENCY COMPENSATION IN AMPLIFIERS WITH LOCAL-FEEDBACK BUFFER STAGESNovember 2022June 2025Allow3000NoNo
17927847CLASS D POWER AMPLIFICATION MODULATION SYSTEM FOR SELF-ADAPTIVE ADJUSTMENT OF AUDIO SIGNAL, METHOD, DEVICE, PROCESSOR AND STORAGE MEDIUMNovember 2022August 2023Allow900NoNo
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
17987985BROADBAND ON-CHIP NESTED-LOOP ALTERNATING CURRENT (AC)-COUPLING SYSTEMS AND METHODSNovember 2022June 2025Allow3110NoNo
18053241SEMICONDUCTOR DEVICE AND COMMUNICATION DEVICE COMPRISING THE SAMENovember 2022June 2025Allow3100NoNo
17919351Traveling wave parametric amplifierOctober 2022September 2024Allow2300NoNo
17963097Superconducting Amplification CircuitOctober 2022September 2024Allow2410NoNo
17936451SWITCHING AUDIO AMPLIFIER WITH IMPROVED VOLTAGE SUPPLY CONTROLSeptember 2022January 2025Allow2700NoNo
17955219PULSE-WIDTH MODULATION AUDIO AMPLIFIER HAVING COMPENSATED REGULATION LOOPSeptember 2022December 2024Allow2700NoNo
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
17945811Compact Pulsed Power SuppliesSeptember 2022April 2023Allow710NoNo
17945652Power Amplifier Self-Heating Compensation CircuitSeptember 2022August 2024Allow2310NoNo
17932659LOW LOSS TRAVELLING WAVE PARAMETRIC DEVICES USING PLANAR CAPACITORSSeptember 2022January 2025Allow2800NoNo
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
17930061AMPLIFIER CIRCUIT AND SENSOR CIRCUITSeptember 2022April 2025Allow3100NoNo
17897958METHODS AND APPARATUS TO REDUCE ERROR IN OPERATIONAL AMPLIFIERSAugust 2022May 2025Allow3310NoNo
17894712TRANSFER PRINTING FOR RF APPLICATIONSAugust 2022February 2025Allow3010NoNo
17880142MULTIPLE FEEDBACK FILTERAugust 2022April 2024Allow2110NoNo
17878456ERROR AMPLIFIER CIRCUITAugust 2022November 2024Allow2800NoNo
17877444AUDIO SIGNAL MODULATION AND AMPLIFICATION CIRCUITJuly 2022December 2024Allow2800NoNo
17877157AGING-AVERSE BANDWIDTH EXTENSION APPARATUSJuly 2022April 2025Allow3210NoNo
17875465POWER AMPLIFIERJuly 2022March 2025Allow3100NoNo
17869111AMPLIFIER WITH VCO-BASED ADCJuly 2022April 2024Allow2110NoNo
17860981GAIN COMPENSATION CIRCUITJuly 2022November 2023Allow1600NoNo
17859304DEVICES AND METHODS TO CONTROL DYNAMIC AUDIO RANGE IN NON-BOOSTED AUDIO SYSTEMSJuly 2022May 2025Allow3410NoNo
17858043Band-Pass Josephson Traveling Wave Parametric AmplifierJuly 2022December 2023Allow1720NoNo
17850249D/A CONVERTERJune 2022February 2025Allow3100NoNo
17757966RESISTANCE DEVICE, INTEGRATED CIRCUIT DEVICE, IMPLANTABLE DEVICE, AND CORRECTION FACTOR DETERMINING METHODJune 2022February 2025Allow3200NoNo
17840874HIGH-LINEARITY AMPLIFIERJune 2022December 2022Allow610NoNo
17836880DYNAMIC CONTROL OF OUTPUT DRIVER IN A SWITCHING AMPLIFIERJune 2022September 2024Allow2700NoNo
17835326AMPLIFIER CIRCUITRYJune 2022November 2023Allow1710NoNo
17780464JOSEPHSON PARAMETRIC COUPLERMay 2022June 2025Allow3710NoNo
17778229BOOSTER STAGE CIRCUIT FOR POWER AMPLIFIERMay 2022August 2024Allow2710NoNo
17663015AUDIO AMPLIFIER CIRCUIT AND CONTROLLING METHOD THEREOFMay 2022February 2024Allow2100NoNo
17741149AMPLIFIER CIRCUITRYMay 2022October 2023Allow1730NoNo
17741180AMPLIFIER CIRCUITRYMay 2022October 2023Allow1730NoNo
17740388Amplifier circuitMay 2022November 2023Allow1810NoNo
17739480MODULATOR FEEDFORWARD COMPENSATIONMay 2022January 2024Allow2100NoNo
17662194LOW NOISE TRANS-IMPEDANCE AMPLIFIERMay 2022January 2024Allow2000NoNo
17732385METHODS AND APPARATUS TO IMPROVE PERFORMANCE OF AMPLIFIERSApril 2022June 2024Allow2510NoNo
17731198TURN ON TIME ACCELERATION OF A CASCODE AMPLIFIERApril 2022May 2025Allow3710NoNo
17731048Scalable Periphery Tunable Matching Power AmplifierApril 2022June 2023Allow1410NoNo
17725392CONTINUOUS TIME LINEAR EQUALIZATION (CTLE) FEEDBACK FOR TUNABLE DC GAIN AND MID-BAND CORRECTIONApril 2022April 2025Allow3610NoNo
17722839DOHERTY AMPLIFIER AND COMMUNICATION DEVICEApril 2022March 2025Allow3510NoNo
17720786Charge-steering amplifier circuit and control method thereofApril 2022July 2023Allow1500NoNo
17720869CALIBRATION OF PULSE WIDTH MODULATION AMPLIFIER SYSTEMApril 2022October 2023Allow1810NoNo
17720936DETERMINATION OF GAIN OF PULSE WIDTH MODULATION AMPLIFIER SYSTEMApril 2022July 2023Allow1500NoNo
17720502AMPLIFIER CIRCUIT, CORRESPONDING DEVICE AND METHODApril 2022November 2024Allow3210NoNo
17717178Charge-steering amplifier-based amplifier circuitApril 2022October 2023Allow1810NoNo
17711935LOW NOISE AMPLIFIER INCORPORATING SUTARDJA TRANSFORMERApril 2022April 2025Abandon3710NoNo
17711183LOW POWER VB CLASS AB AMPLIFIER WITH LOCAL COMMON MODE FEEDBACKApril 2022September 2023Allow1810NoNo
17657540FAST, LOW-POWER RECEIVE SIGNAL STRENGTH INDICATOR (RSSI) CIRCUIT AND METHOD THEREFORMarch 2022October 2024Allow3110NoNo
17703230Generation And Synchronization Of Pulse-Width Modulated (PWM) Waveforms For Radio-Frequency (RF) ApplicationsMarch 2022December 2023Allow2120NoNo
17703153OUTPUT CLAMP AND CURRENT LIMITER FOR AMPLIFIERMarch 2022September 2023Allow1710YesNo
17763331MULTIPLEXED READOUT SYSTEMMarch 2022June 2023Allow1400NoNo
17702631HIGH-SPEED CURRENT-FEEDBACK AMPLIFIER WITH DISTORTION CANCELLATIONMarch 2022June 2023Allow1500NoNo
17698640AUDIO AMPLIFIERMarch 2022July 2023Allow1610NoNo
17691428OPERATIONAL AMPLIFIER CIRCUIT AND OPERATIONAL AMPLIFIER COMPENSATION CIRCUIT FOR AMPLIFYING INPUT SIGNAL AT HIGH SLEW RATEMarch 2022March 2025Allow3610NoNo
17641566A KINETIC INDUCTANCE PARAMETRIC AMPLIFIERMarch 2022August 2023Allow1810NoNo
17689469DISTRIBUTED BIAS CIRCUIT FOR WIDEBAND AMPLIFIERSMarch 2022October 2024Allow3100NoNo
17653487COMMON MODE TRANSIENT SUPPRESSIONMarch 2022November 2024Allow3210NoNo
17676594CLASS-D AMPLIFYING SYSTEM AND CLASS-D AMPLIFIER CIRCUITFebruary 2022September 2023Allow1910NoNo
17673822Switching Amplifier with Adaptive Supply-Voltage ScalingFebruary 2022July 2023Allow1710NoNo
17674144AMPLIFIER CIRCUIT AND CIRCUIT SYSTEM USING THE SAMEFebruary 2022April 2023Allow1400NoNo
17671374TUNABLE EFFECTIVE INDUCTANCE FOR MULTI-GAIN LNA WITH INDUCTIVE SOURCE DEGENERATIONFebruary 2022September 2023Allow1910NoNo
17669167COMMUNICATION DEVICE HAVING POWER AMPLIFICATION FOR MULTIPLE TRANSMIT UPLINKSFebruary 2022August 2024Allow3000NoNo
17668397Switched capacitor amplifier apparatus and switched capacitor amplifying method for improving level-shiftingFebruary 2022April 2023Allow1400NoNo
17634347MULTI-AMPLIFIER ENVELOPE TRACKING APPARATUSFebruary 2022August 2024Allow3000NoNo
17650408POWER AMPLIFIER CIRCUITFebruary 2022December 2024Allow3510NoNo
17649994HIGH-ENERGY SUPPRESSION FOR CAPACITOR TRANSIMPEDANCE AMPLIFIER (CTIA)-BASED IMAGERS OR OTHER IMAGING DEVICESFebruary 2022March 2023Allow1300NoNo
17649967HYBRID CLASS-H/PREDICTIVE CLASS-G SWITCHING AMPLIFIER ARCHITECTUREFebruary 2022September 2023Allow1910NoNo
17665399MULTI-STAGE AMPLIFIER CIRCUITS AND METHODSFebruary 2022March 2023Allow1400NoNo
17588662HIGH TOLERANCE VARIABLE GAIN AMPLIFIERSJanuary 2022January 2025Allow3610NoNo
17589047ZERO-CROSSING MANAGEMENT IN CLASS-D AUDIO AMPLIFIERSJanuary 2022March 2023Allow1300NoNo
17587105COMPENSATION OF THERMALLY INDUCED VOLTAGE ERRORSJanuary 2022August 2023Allow1901NoNo
17586111OPERATIONAL AMPLIFIER FOR USE IN COULOMB COUNTER CIRCUITJanuary 2022January 2025Allow3611NoNo
17585655ANALOG IMPLEMENTATION OF VARIABLE-GAIN DIFFERENTIATORS BASED ON VOLTAGE-CONTROLLED AMPLIFIERSJanuary 2022November 2024Allow3400NoNo
17648958DYNAMIC COMMON-MODE ADJUSTMENT FOR POWER AMPLIFIERSJanuary 2022February 2024Allow2520NoNo
17585087HIGH-SPEED BUFFER AMPLIFIERJanuary 2022May 2023Allow1510NoNo
17583614AMPLIFIERSJanuary 2022June 2023Allow1710NoNo

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
94.9%
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 610 patent applications in our dataset. With an allowance rate of 97.2%, 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 97.2% places them in the 91% 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 0.94 office actions before reaching final disposition. This places the examiner in the 11% 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 92% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +2.9% benefit to allowance rate for applications examined by NGUYEN, HIEU P. This interview benefit is in the 22% 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, 41.4% of applications are subsequently allowed. This success rate is in the 92% 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 59.2% of cases where such amendments are filed. This entry rate is in the 81% 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 95% 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, 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, 46.2% are granted (fully or in part). This grant rate is in the 52% 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 0.2% of allowed cases (in the 48% 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 0.3% of allowed cases (in the 47% 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:

  • 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.