USPTO Examiner NGUYEN HOAI AN D - Art Unit 2858

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18970987MEASUREMENT METHOD FOR IMPEDANCE OF CONVERTER AT MULTIPLE OPERATING POINTS BASED ON SECONDARY-SIDE DISTURBANCEDecember 2024February 2025Allow200NoNo
18727880Magnetic Field Sensor For Measuring A Direct CurrentJuly 2024January 2025Allow700NoNo
18756043METHOD FOR COMPUTING AN INSULATION RESISTANCE IN AN UNGROUNDED DC POWER SUPPLY SYSTEM AT A CHANGEABLE DC LINE VOLTAGEJune 2024May 2025Allow1000NoNo
18754369METHOD OF ESTIMATING A VOLTAGEJune 2024March 2025Allow810YesNo
18591879MAGNETIC VELOCITY AND POSITION SENSORSFebruary 2024January 2025Allow1110NoNo
18407477SYSTEM AND METHOD OF MEASURING FUSE RESISTANCE AND NON-TRANSITORY COMPUTER READABLE MEDIUMJanuary 2024December 2024Allow1110NoNo
18513897Circuit arrangement for measuring at least one capacitorNovember 2023June 2025Allow1900YesNo
18511086CONTACTLESS CAPACITIVE MEASUREMENT TOOL WITH IMPROVED THROUGHPUT AND ACCURACYNovember 2023June 2025Allow1900NoNo
18509838SYSTEM AND METHOD FOR DETERMINING THE IMPEDANCE PROPERTIES OF A LOAD USING LOAD ANALYSIS SIGNALSNovember 2023January 2025Allow1410NoNo
18290177ELECTRICAL CIRCUIT ARRANGEMENT AND METHOD FOR DETECTING A SHORT CIRCUITNovember 2023June 2025Allow1900NoNo
18506651CONSTRUCTIVE SYSTEM REGARDING A CAPACITIVE SENSORNovember 2023June 2024Allow700NoNo
18502153METHOD FOR ACHIEVING TERMINAL-PAIR DEFINITION OF FOUR-TERMINAL-PAIR IMPEDANCE AND APPLICATION THEREOFNovember 2023January 2024Allow200NoNo
18483975MEASURING HEADOctober 2023June 2025Allow2000NoNo
18370581CAPACITOR INSPECTION METHOD AND INSPECTION APPARATUS USED FOR SAMESeptember 2023June 2024Allow900YesNo
18460915CAPACITIVE-SENSING ROTARY ENCODERSeptember 2023October 2024Allow1410NoNo
18235356CAPACITANCE MEASUREMENT CIRCUITAugust 2023April 2025Allow2000NoNo
18448200SWITCHGEAR SYSTEM THAT DETERMINES CONTACT EROSION IN CIRCUIT BREAKERAugust 2023June 2024Allow1010NoNo
18364226CAPACITANCE DETECTION DEVICE, CAPACITANCE DETECTION METHOD, AND INPUT DEVICEAugust 2023June 2025Allow2200NoNo
18228302VOLTAGE MEASURING METHOD, COMPUTER DEVICE AND STORAGE MEDIUMJuly 2023October 2023Allow200NoNo
18359879STEERING DEVICEJuly 2023June 2025Allow2200NoNo
18273892METHOD FOR DETERMINING INSULATION THERMOMECHANICAL DETERIORATION OF VPI WIRE ROD OF PUMPED STORAGE POWER GENERATION MOTORJuly 2023November 2023Allow400NoNo
18207733GLOW FISH TAPE SYSTEMJune 2023September 2024Allow1510NoNo
18208040MAGNETIC VELOCITY AND POSITION SENSORSJune 2023November 2023Allow510NoNo
18207391ELECTROMAGNETIC MARKER DEVICES FOR BURIED OR HIDDEN USEJune 2023December 2024Allow1820NoNo
18203825DETECTING DEVICEMay 2023March 2025Allow2200NoNo
18203138SUBSTRATE INSPECTION APPARATUS AND SUBSTRATE INSPECTION METHODMay 2023March 2025Allow2200NoNo
18321241ADJUSTABLE VOLTAGE SENSORMay 2023June 2025Abandon2510NoNo
18197274SMART CORD REEL SYSTEMMay 2023July 2024Allow1420NoNo
18315613ELECTRIC FIELD DETECTOR WEARABLE IN MULTIPLE ORIENTATIONSMay 2023May 2025Allow2500YesNo
18315203Capacitance Variation Measurement Mixed Signal IC Based on High-Frequency ResponseMay 2023May 2025Allow2400NoNo
18252349MEASURING DEVICE ASSEMBLYMay 2023February 2024Allow1010NoNo
18313799ELECTRICAL SENSOR ASSEMBLYMay 2023December 2023Allow710NoNo
18141111REDUNDANT VERIFIABLE HIGH VOLTAGE MEASUREMENT PORT FOR TRACTION INVERTER AND HIGH VOLTAGE DISTRIBUTIONApril 2023September 2024Allow1700NoNo
18138997DRIFT SUPPRESSION METHOD, PROXIMITY SENSOR AND WIRELESS DEVICEApril 2023March 2025Allow2300NoNo
18138985CAPACITIVE SENSOR DEVICE WITH DRIFT COMPENSATIONApril 2023June 2025Allow2610NoNo
18135806MODULAR NETWORK TEST DEVICE WITH BATTERY MODULE AND INTELLIGENT CHARGINGApril 2023October 2024Allow1800NoNo
18134076SHOCK ALERT WARNING DEVICE AND METHOD FOR PROTECTION FROM ELECTRIC SHOCK IN A FLOODED AREAApril 2023August 2024Abandon1610NoNo
18299418MAGNETISM DETECTION DEVICEApril 2023June 2025Allow2610NoNo
18299711PREHEATING CONTROL SYSTEM, PREHEATING CONTROL METHOD AND NON-TRANSIENT COMPUTER READABLE STORAGE MEDIUMApril 2023February 2025Allow2300NoNo
18299514DISPLAY PANEL, MOTHERBOARD AND MINI LED DISPLAY DEVICEApril 2023December 2024Allow2000NoNo
18130431CONTACT PINS FOR TEST SOCKETS AND TEST SOCKETS COMPRISING THE SAMEApril 2023December 2024Allow2000NoNo
18129490SELF-RESET TESTING SYSTEMS AND METHODSMarch 2023May 2025Allow2610YesNo
18192759CURRENT SENSING FOR POWER CONVERTERMarch 2023December 2024Allow2000YesNo
18128909CHANGES IN RESISTIVITY OF MESH-PATTERNED POLYMER THIN FILMS COATED WITH CONDUCTIVE TRACES USED TO DETECT HYDROCARBON FUELS HIDDEN IN PARAFFIN-BASED LUBRICATION OILSMarch 2023January 2025Allow2200NoNo
18193238BUS BAR ASSEMBLYMarch 2023January 2025Allow2200NoNo
18191689CIRCUIT FOR BIASING AN EXTERNAL RESISTIVE SENSORMarch 2023April 2025Allow2410NoNo
18028570ALTERNATING CURRENT RESISTANCE DETECTION CIRCUIT AND SYSTEMMarch 2023August 2023Allow500NoNo
18126577DUAL GATE BIOLOGICALLY SENSITIVE FIELD EFFECT TRANSISTORMarch 2023December 2024Allow2000NoNo
18187403Phase-Change Material SwitchesMarch 2023December 2024Allow2110NoNo
18026947METHOD AND DEVICE FOR DETECTING A SHORT CIRCUIT IN AN H-BRIDGE ELECTRONIC CIRCUITMarch 2023September 2024Allow1800NoNo
18122312METHOD AND MONITORING DEVICE FOR DETERMINING A PARTIAL INSULATION RESISTANCE AND A PARTIAL SYSTEM LEAKAGE CAPACITANCE IN A BRANCHED UNGROUNDED POWER SUPPLY SYSTEMMarch 2023December 2023Allow900NoNo
18182350SURFACE SENSING VIA RESONANT SENSORMarch 2023January 2025Allow2310NoNo
18181128INTEGRATED CIRCUIT AND METHOD FOR DIAGNOSING AN INTEGRATED CIRCUITMarch 2023December 2023Allow910NoNo
18180872SPATTER DETECTION METHODMarch 2023September 2024Allow1900NoNo
18175838MAGNETIC RESONANCE TEMPERATURE CORRECTION METHOD BASED ON K-SPACE ENERGY SPECTRUM ANALYSIS AND SYSTEMFebruary 2023September 2024Allow1900NoNo
18113608Electrical Testing Device with Probe Having Portions with Different Cross-Sectional AreasFebruary 2023November 2024Allow2110NoNo
18172633PREDICTIVE BATTERY HEALTH DETECTION FROM PACK SOAKING BEHAVIORFebruary 2023January 2025Allow2310YesNo
18170268MAGNETIC POSITION SENSOR SYSTEM WITH HIGH ACCURACYFebruary 2023March 2025Allow2510NoNo
18108156Power Contact Health Assessor Apparatus and MethodFebruary 2023September 2024Abandon1910NoNo
18016882SEMICONDUCTOR INSPECTION DEVICE AND METHOD FOR INSPECTING SEMICONDUCTOR SAMPLEJanuary 2023September 2024Allow2000NoNo
18154891Floating Pin DetectionJanuary 2023March 2025Allow2600YesNo
18014715Micromachined Mechanical Part and Methods of Fabrication ThereofJanuary 2023January 2025Allow2410NoNo
18149561CONSTRUCTIVE SYSTEM REGARDING A CAPACITIVE SENSORJanuary 2023June 2023Allow600NoNo
18091219ULTRASENSITIVE CAPACITIVE SENSOR COMPOSED OF NANOSTRUCTURED ELECTRODESDecember 2022March 2024Allow1420NoNo
18002191Method And Arrangement For Crack Detection At An Edge In A Metallic MaterialDecember 2022August 2024Allow2000NoNo
18066760NON-CONTACT VISUAL INDICATION FOR MOTION SENSINGDecember 2022January 2025Allow2510YesNo
18078169PROXIMITY SENSOR FOR PORTABLE WIRELESS DEVICEDecember 2022January 2025Allow2510NoNo
18009647MULTIBAND RESONANCE FREQUENCY TRACKING CIRCUIT AND METHOD APPLIED TO ULTRASONIC MACHININGDecember 2022June 2024Allow1800NoNo
18064055SHUNT RESISTOR FOR A CURRENT MEASUREMENT APPARATUS OF A BUSBAR, CURRENT MEASUREMENT APPARATUS AND BUSBARDecember 2022September 2024Allow2100NoNo
18009113MAGNETIC BODY INSPECTION APPARATUS AND MAGNETIC BODY INSPECTION METHODDecember 2022December 2024Allow2410NoNo
18077147ABNORMAL DETECTION CIRCUIT FOR DETECTING THREE-PHASE AC POWERDecember 2022December 2024Allow2410NoNo
18076296CONTROL METHOD AND CONTROLLER RELATED TO ELECTROMAGNETIC TRACKINGDecember 2022December 2024Allow2410NoNo
18058437CONFORMAL DEPOSITION FOR HIGH VOLTAGE ISOLATIONNovember 2022January 2025Allow2620NoNo
17991543CALIBRATION OF THE EXTERNAL RESISTANCE VALUE IN THE POWER SOURCING EQUIPMENT OF A POWER OVER ETHERNET SYSTEMNovember 2022December 2024Allow2410NoNo
18057122SYSTEM FOR LOCATING POWER FAULTS BASED ON A DIRECTION OF CURRENT FLOWNovember 2022February 2025Allow2710YesNo
17981257CANTILEVER PROBE CARD DEVICE AND ELASTIC PROBE THEREOFNovember 2022July 2024Allow2010NoNo
17979269SYSTEM AND METHOD FOR ELECTROSTATIC ALIGNMENT AND SURFACE ASSEMBLY OF PHOTONIC CRYSTALS FOR DYNAMIC COLOR EXHIBITIONNovember 2022October 2023Abandon1110NoNo
17919742PROBE CARDOctober 2022November 2024Allow2520NoNo
17965539READ-OUT CIRCUIT FOR A CAPACITIVE SENSOROctober 2022June 2024Allow2010NoNo
17918840HALF BRIDGE POWER CONVERTER, AND SWITCHING METHOD FOR HALF BRIDGE POWER CONVERTER AND POWER SWITCHOctober 2022May 2024Allow1900NoNo
18045295NON-CONTACT CIRCUIT TESTING SYSTEMS AND METHODSOctober 2022November 2024Allow2510NoNo
17937309METHOD TO DETERMINE A MASS OF AN ABSORBED GAS AND A MASS OF A PORE GAS IN A SAMPLESeptember 2022July 2024Allow2200NoNo
17915614CURRENT TRANSDUCERSeptember 2022July 2024Allow2110NoNo
17915031APPARATUS FOR NON-POLARITY CORRECTION AND DISPLACEMENT MEASUREMENT OF OBJECT USING SEARCH COIL TYPE SENSORSeptember 2022July 2024Allow2110NoNo
17913022FAULT DETECTION IN A POWER TRANSMISSION SYSTEMSeptember 2022June 2024Allow2110NoNo
17946832ANTENNA ASSEMBLY HAVING A CIRCUIT BOARD AND AT LEAST ONE ANTENNA ARRANGED ON THE CIRCUIT BOARDSeptember 2022June 2024Allow2100YesNo
17944380POSITION ENCODER BASED ON HALBACH MAGNETIC ELEMENTSeptember 2022May 2024Allow2000NoNo
17897408SENSOR SYSTEM AND ELECTRODESAugust 2022July 2023Allow1130NoNo
17890212CAPACITANCE DETECTION MODULE AND METHODAugust 2022March 2023Allow710NoNo
17817381METHOD FOR DIAGNOSING SWITCH FAULT AND/OR PHASE LOSS IN INVERTERAugust 2022November 2023Allow1600NoNo
17878059FREQUENCY DETECTION DEVICE FOR CLOCK SIGNAL AND DETECTION METHOD THEREOFAugust 2022June 2024Allow2200NoNo
17875894SYSTEMS AND METHODS FOR PROACTIVE MONITORING THROUGH SMART COATINGSJuly 2022April 2024Allow2010YesNo
17815424IN-SITU TESTING OF ELECTRIC DOUBLE LAYER CAPACITORS IN ELECTRIC METERSJuly 2022March 2023Allow810NoNo
17873770GROUND FAULT DETECTION DEVICEJuly 2022June 2023Allow1000NoNo
17812394MEASURING LOOP RESISTANCEJuly 2022February 2024Allow2000YesNo
17863341DIFFERENTIAL CAPACITOR DEVICE AND METHOD FOR CALIBRATING DIFFERENTIAL CAPACITORJuly 2022September 2023Allow1400NoNo
17861558APPARATUS AND METHOD FOR MEASURING INSULATION RESISTANCE OF VEHICLEJuly 2022September 2024Allow2610NoNo
17856346WIRE VOLTAGE MEASUREMENT METHOD AND APPARATUS BASED ON ELECTRIC FIELD SENSORJuly 2022July 2023Allow1300NoNo
17856034MEASURING PROBE FOR MEASURING IN GROUND A PARAMETER AND A METHOD FOR MAKING SUCH A PROBEJuly 2022July 2024Allow2520NoNo
17854097CAPACITIVE TOUCH SENSORJune 2022November 2023Allow1610NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner NGUYEN, HOAI AN D.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
3
Examiner Affirmed
2
(66.7%)
Examiner Reversed
1
(33.3%)
Reversal Percentile
52.5%
Higher than average

What This Means

With a 33.3% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
11
Allowed After Appeal Filing
6
(54.5%)
Not Allowed After Appeal Filing
5
(45.5%)
Filing Benefit Percentile
84.9%
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, 54.5% 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

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 NGUYEN, HOAI AN D - Prosecution Strategy Guide

Executive Summary

Examiner NGUYEN, HOAI AN D works in Art Unit 2858 and has examined 762 patent applications in our dataset. With an allowance rate of 93.7%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 23 months.

Allowance Patterns

Examiner NGUYEN, HOAI AN D's allowance rate of 93.7% places them in the 82% 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, HOAI AN D receive 0.78 office actions before reaching final disposition. This places the examiner in the 7% 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, HOAI AN D is 23 months. This places the examiner in the 77% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +5.1% benefit to allowance rate for applications examined by NGUYEN, HOAI AN D. This interview benefit is in the 30% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 40.5% of applications are subsequently allowed. This success rate is in the 90% 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 46.8% of cases where such amendments are filed. This entry rate is in the 65% 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, 66.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 53% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences show above-average effectiveness with this examiner. If you have strong arguments, a PAC request may result in favorable reconsideration.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 76.9% of appeals filed. This is in the 64% 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 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, 37.7% are granted (fully or in part). This grant rate is in the 34% 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 16.3% of allowed cases (in the 98% 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 1.4% of allowed cases (in the 60% 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.
  • 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.