USPTO Examiner NGUYEN HOANG M - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19014594MULTI-PARAMETER INTEGRATED TEST SYSTEM FOR DEEP GEOTHERMAL IN-SITU POWER GENERATIONJanuary 2025March 2025Allow200NoNo
18967499PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINE WITH ENERGY PRODUCT GENERATION AND TRANSPORTDecember 2024May 2025Allow510YesNo
18953739CENTRIFUGAL COMPRESSORNovember 2024May 2025Allow500NoNo
18929918ACTUATION APPARATUS AND ELECTRONIC PRODUCTOctober 2024March 2025Allow400NoNo
18921278PUMPED HEAT ENERGY STORAGE SYSTEM WITH LOAD FOLLOWINGOctober 2024June 2025Allow710NoNo
18920128COMPRESSOR TRAIN FOR CHEMICAL PLANTOctober 2024June 2025Allow810NoNo
18815663SYSTEMS AND METHODS FOR PRODUCING CLEAN ENERGYAugust 2024February 2025Allow510NoNo
18834706HEAT EXCHANGER PROVIDED WITH AN AIR DIFFUSION SYSTEM AND CORRESPONDING TURBOMACHINEJuly 2024June 2025Allow1010NoNo
18790958STIRLING ENGINEJuly 2024April 2025Allow810YesNo
18783338MAGNETIC SUCTION FANJuly 2024April 2025Allow900NoNo
18771356GEOPRESSURE AND GEOTHERMAL POWER SYSTEMJuly 2024February 2025Allow710NoNo
18721386ACTUATOR ASSEMBLYJune 2024June 2025Allow1110NoNo
18720149POWER GENERATION SYSTEMJune 2024November 2024Allow500NoNo
18735587GeoHeat Harvesting EnhancementJune 2024December 2024Allow620NoNo
18713701FLUID PRESSURE ACTUATORMay 2024February 2025Allow910NoNo
18711182ENGINEMay 2024March 2025Allow1010YesNo
18711333MITIGATING FLUID LOSS OR INFLOW IN A CLOSED-LOOP GEOTHERMAL SYSTEMMay 2024April 2025Allow1110NoNo
18708219THERMAL OSCILLATION SYSTEMSMay 2024April 2025Allow1110YesNo
18654996SYSTEMS AND METHODS FOR PRODUCING CLEAN ENERGYMay 2024September 2024Allow510NoNo
18704599BUOYANT FORCE UTILIZATION DEVICEApril 2024June 2025Allow1420NoNo
18644239POWER MACHINEApril 2024February 2025Allow900NoNo
18630943REACTIVE BY-PRODUCTS COLLECTION SYSTEMApril 2024April 2025Allow1200NoNo
18625842TURBINE OVERSPEED PROTECTIONApril 2024January 2025Allow910NoNo
18621750GAS MIXING DEVICE AND MOVING OBJECTMarch 2024November 2024Allow710NoNo
18614901SYSTEMS FOR GENERATING GEOTHERMAL POWER IN AN ORGANIC RANKINE CYCLE OPERATION DURING HYDROCARBON PRODUCTION BASED ON WELLHEAD FLUID TEMPERATUREMarch 2024September 2024Allow610YesNo
18694323DOWNHOLE HEAT EXCHANGER FOR GEOTHERMAL POWER SYSTEMSMarch 2024June 2025Abandon1510NoNo
18601194PUMP CONTROL OF CLOSED CYCLE POWER GENERATION SYSTEMMarch 2024April 2025Abandon1310NoNo
18600578SODIUM-CHLORINE BOILERMarch 2024July 2024Allow400YesNo
18595679SYSTEMS AND METHODS FOR GENERATION OF ELECTRICAL POWER IN AN ORGANIC RANKINE CYCLE OPERATIONMarch 2024July 2024Allow510NoNo
18594866MOBILE EMERGENCY WATER SUPPLY AND DRAINAGE DEVICEMarch 2024June 2025Allow1500NoNo
18583247GEOTHERMAL SYSTEMS AND METHODS WITH AN UNDERGROUND MAGMA CHAMBERFebruary 2024September 2024Allow710NoNo
18442935FLARE AND GAS POWERED SYSTEMFebruary 2024February 2025Allow1200NoNo
18441405SUB-IDLE HYBRID OPERATION MODE FOR HYBRID ELECTRIC PROPULSION SYSTEMFebruary 2024October 2024Allow810NoNo
18435191PREFORM FOR MAKING A CASING STRUCTURE FOR TURBINE ENGINESFebruary 2024September 2024Allow810NoNo
18682037Rotary-Wing Vehicle, and Rotary-Wing TurbineFebruary 2024March 2025Allow1310NoNo
18682064THERMAL PROCESSES AND SYSTEMS FOR GENERATING ELECTRICITY UTILIZING PREDETERMINED WORKING FLUIDSFebruary 2024February 2025Allow1210NoNo
18435787THERMAL PROCESSES AND SYSTEMS FOR GENERATING ELECTRICITY UTILIZING PREDETERMINED WORKING FLUIDSFebruary 2024March 2025Allow1310NoNo
18433239PYROTECHNIC LATCH RETRACTION MECHANISMFebruary 2024May 2024Allow400NoNo
18294910SYSTEMS AND PROCESSES FOR GENERATING ELECTRICITY FROM A GEOTHERMAL ENERGY SOURCE VIA AN INTEGRATED THERMAL POWER PLANTFebruary 2024February 2025Allow1210NoNo
18427190Aircraft Propulsion System Air Mover BrakeJanuary 2024September 2024Allow710NoNo
18426302Energy Production from Deep Ocean PressureJanuary 2024June 2025Abandon1710NoNo
18423919PUMPED HEAT ENERGY STORAGE SYSTEM WITH ELECTRIC HEATING INTEGRATIONJanuary 2024December 2024Allow1120NoNo
18292594PLANT AND PROCESS OF CONVERTING THERMAL ENERGY INTO MECHANICAL AND/OR ELECTRICAL ENERGYJanuary 2024January 2025Allow1200NoNo
18421132HEAT ENGINEJanuary 2024December 2024Allow1120NoNo
18398795HYDROGEN EXPANSION SYSTEM FOR FUEL CELL USEDecember 2023December 2024Allow1200NoNo
18399026ACTUATOR WITH CONTRACTING MEMBERDecember 2023October 2024Allow920YesNo
18397037SYSTEMS AND METHODS TO UTILIZE HEAT CARRIERS IN CONVERSION OF THERMAL ENERGYDecember 2023November 2024Allow1020NoNo
18393389FAST RESPONSE ACTIVE CLEARANCE SYSTEMS WITH PIEZOELECTRIC ACTUATOR IN AXIAL, AXIAL/RADIAL COMBINED, AND CIRCUMFERENTIAL DIRECTIONSDecember 2023January 2025Allow1310NoNo
18544103SYSTEMS AND METHODS FOR PRODUCING CLEAN ENERGYDecember 2023October 2024Abandon1010NoNo
18539260PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINEDecember 2023August 2024Allow810NoNo
18525484SYSTEMS AND METHODS FOR CARBON DIOXIDE-BASED ENERGY STORAGE AND POWER GENERATIONNovember 2023June 2024Allow710YesNo
18388746METHODS AND SYSTEMS FOR FREE-FLOATING NAUTICAL STATIONKEEPINGNovember 2023July 2024Allow901NoNo
18559224IMPROVED TRANSMISSION DEVICE FOR HYBRID AIRCRAFTNovember 2023August 2024Allow910NoNo
18289603HEAT ENGINE SYSTEM AND METHODNovember 2023July 2025Allow2020NoNo
18501582Method for Thermal Profile Control and Energy Recovery in Geothermal WellsNovember 2023August 2024Allow910YesNo
18289548SYSTEMS AND METHODS FOR GENERATING GAS AND POWERNovember 2023November 2024Allow1300NoNo
18376225Air Turbine Energy Recapture SystemOctober 2023September 2024Allow1220NoNo
18550218HEAT ENGINESeptember 2023August 2024Allow1110NoNo
18241935Exhaust Gas Heat Recovery from Cryo-Compression Engines with Cogeneration of Cryo-Working FluidSeptember 2023January 2024Allow520NoNo
18239695WAVE ENERGY DEVICE WITH CONSTRICTED TUBE AND GENERATOR PODAugust 2023May 2024Allow810NoNo
18456628SYSTEMS AND METHODS UTILIZING GAS TEMPERATURE AS A POWER SOURCEAugust 2023October 2024Allow1400NoNo
18276825A GEOTHERMAL DESALINATION AND PUMPING SYSTEMAugust 2023April 2025Allow2010NoNo
18448131ROTARY PISTON ENGINEAugust 2023June 2025Abandon2210NoNo
18448123ROTARY PISTON ENGINEAugust 2023December 2024Abandon1610NoNo
18264825DISTANCE ADJUSTMENT APPARATUS AND CONTROL METHOD OF DISTANCE ADJUSTMENT APPARATUSAugust 2023August 2024Allow1200NoNo
18276284HIGHLY STRETCHABLE FIBER WITH TUNABLE STIFFNESS AND APPLICATIONSAugust 2023April 2024Allow800NoNo
18264651GEOPRESSURE AND GEOTHERMAL POWER SYSTEMAugust 2023April 2024Allow810YesNo
18230097DISPLACEMENT DEVICE INCLUDING FORCE DISPLACEMENT MECHANISM WITH CONSTANT VOLUME BOOTAugust 2023September 2024Allow1410NoNo
18263469GLAND CONDENSER SKID SYSTEMS BY DIRECT CONTACT HEAT EXCHANGER TECHNOLOGYJuly 2023February 2024Allow700NoNo
18274413THERMAL ENERGY STORAGE POWER PLANTJuly 2023August 2024Allow1210NoNo
18359480COMPONENTS HAVING COATING SYSTEMS COMPRISING MUD CRACKS AND METHODS FOR FORMING THE COATING SYSTEMSJuly 2023June 2024Allow1000NoNo
18358128MOTOR UNIT, PARTICULARLY FOR OPERATING MACHINESJuly 2023October 2024Allow1510NoNo
18225013SYSTEMS AND METHODS FOR GENERATION OF ELECTRICAL POWER IN AN ORGANIC RANKINE CYCLE OPERATIONJuly 2023June 2024Allow1100NoNo
18261582METHOD AND SYSTEMS FOR POSITIVE DISPLACEMENT OF AN ACTUATION DEVICEJuly 2023July 2024Allow1310NoNo
18351678ARRANGEMENT COMPRISING A PIN AND A CRANK AND TURBOCHARGER WITH SUCH AN ARRANGEMENTJuly 2023September 2024Allow1410NoNo
18346478SHALLOW WATER PROPELLERSJuly 2023May 2024Allow1010YesNo
18341149PRESSURE CONTROL SYSTEM FOR A CLOSED-CYCLE ENGINEJune 2023May 2024Allow1000NoNo
18258832FLEXIBLE POWER PLANT BASED ON SUPERCRITICAL CARBON DIOXIDE POWER CIRCULATION IN COMBINATION WITH SEAWATER DESALINATION AND CONTROL METHOD OF SAMEJune 2023November 2024Allow1710YesNo
18212269SYSTEMS FOR GENERATING GEOTHERMAL POWER IN AN ORGANIC RANKINE CYCLE OPERATION DURING HYDROCARBON PRODUCTION BASED ON WELLHEAD FLUID TEMPERATUREJune 2023March 2024Allow910NoNo
18266858HYDRAULIC ARRANGEMENT AND ELECTRICALLY OPERABLE, MULTIGEAR AXLE DRIVE TRAINJune 2023February 2024Allow800NoNo
18208875PRESSURE-REGULATING HYDRODYNAMIC PUMP AND WAVE ENGINEJune 2023August 2023Allow200NoNo
18329217SHAPE MEMORY MATERIAL MEMBER-BASED ACTUATORJune 2023January 2024Allow720YesNo
18327223GEOTHERMAL HEAT HARVESTERSJune 2023June 2024Allow1320NoNo
18039327BINARY POWER GENERATION SYSTEM UTILIZING RENEWABLE ENERGY SUCH AS GEOTHERMAL HEATMay 2023March 2025Allow2110NoNo
18252280TURBINE ENGINE ROTOR ELEMENT ASSEMBLY EQUIPPED WITH A SEALING DEVICEMay 2023March 2024Allow1110NoNo
18144466MULTIPLE WELL PAIRS FOR SCALING THE OUTPUT OF GEOTHERMAL ENERGY POWER PLANTSMay 2023June 2024Allow1320NoNo
18313596TURBINE-COMPRESSOR ASSEMBLY AND METHODMay 2023April 2024Allow1110NoNo
18142471Shape Memory Alloy (SMA) Bimorph Actuators With Reduced Wire Exit AngleMay 2023January 2024Allow910NoNo
18251278MODULARITY OF AN AIRCRAFT TURBOMACHINEMay 2023December 2023Allow700NoNo
18033826Alpha Stirling EngineApril 2023April 2024Allow1200NoNo
18130643AIRCRAFT ENGINE FLUID SYSTEM WITH BYPASS VALVEApril 2023September 2024Allow1820NoNo
18295587PRESSURE BALANCING OF ROTATING CONTROL PISTON OF GENERATOR TRANSMISSIONApril 2023January 2024Allow1010NoNo
18247767GEOTHERMAL WELL DESIGNS AND CONTROL THEREOF FOR EXTRACTION OF SUBSURFACE GEOTHERMAL POWERApril 2023June 2024Allow1410NoNo
18295544Energy Conversion SystemApril 2023December 2024Abandon2010NoNo
18125189SYSTEMS AND METHODS FOR GENERATION OF ELECTRICAL POWER IN AN ORGANIC RANKINE CYCLE OPERATIONMarch 2023July 2023Allow400NoNo
18245812BALANCED GEOTHERMAL ENERGY TRANSFER LOOPMarch 2023December 2024Allow2110NoNo
18184810STEAM TURBINE WITH REDUNDANT LOW PRESSURE SECTIONMarch 2023September 2023Allow600NoNo
18024890STEAM TURBINE PLANT AND METHOD FOR CLEANING SAMEMarch 2023October 2023Allow700NoNo
18116693GEOTHERMAL SYSTEMS AND METHODS WITH AN UNDERGROUND MAGMA CHAMBERMarch 2023December 2023Allow1020NoNo
18043635CATALYST MOUNTING IN INTERNAL COMBUSTION ENGINESMarch 2023September 2024Allow1810NoNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
8
Examiner Affirmed
4
(50.0%)
Examiner Reversed
4
(50.0%)
Reversal Percentile
78.4%
Higher than average

What This Means

With a 50.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. 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
32
Allowed After Appeal Filing
17
(53.1%)
Not Allowed After Appeal Filing
15
(46.9%)
Filing Benefit Percentile
83.9%
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, 53.1% 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, HOANG M - Prosecution Strategy Guide

Executive Summary

Examiner NGUYEN, HOANG M works in Art Unit 3746 and has examined 1,174 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 18 months.

Allowance Patterns

Examiner NGUYEN, HOANG M'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, HOANG M receive 1.06 office actions before reaching final disposition. This places the examiner in the 14% 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, HOANG M is 18 months. This places the examiner in the 96% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a -1.7% benefit to allowance rate for applications examined by NGUYEN, HOANG M. This interview benefit is in the 7% 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, 36.7% of applications are subsequently allowed. This success rate is in the 80% 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 63.6% of cases where such amendments are filed. This entry rate is in the 85% 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, 114.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 79% 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 77.1% of appeals filed. This is in the 65% percentile among all examiners. Of these withdrawals, 51.9% 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, 35.7% are granted (fully or in part). This grant rate is in the 31% 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 2.5% of allowed cases (in the 80% 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 4.9% of allowed cases (in the 79% 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:

  • 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.
  • 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.