USPTO Examiner NGUYEN DUSTIN T - Art Unit 3745

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19087125THREE-POSITION CONTROL DEVICE AND THREE-POSITION CONTROL METHODMarch 2025November 2025Allow810NoNo
19084763PNEUMATIC CONTROLLER FOR VEHICLE SEATSMarch 2025August 2025Allow500NoNo
18988992ENERGY RECOVERY SYSTEM AND CONTROL STRATEGY FOR HYDRAULIC EXCAVATOR BOOMDecember 2024October 2025Allow1010NoNo
18983883HYDRAULIC DRIVE SYSTEMDecember 2024January 2026Allow1310NoNo
18873171WORKING CYLINDER, IN PARTICULAR A HYDRAULIC WORKING CYLINDERDecember 2024October 2025Allow1110NoNo
18861524PRESSING DEVICEOctober 2024August 2025Allow900NoNo
18906731ACTUATOR ASSEMBLYOctober 2024March 2026Abandon1711NoNo
18851839HYDRAULIC VALVE AND HYDRAULIC CIRCUITSeptember 2024January 2026Allow1620NoNo
18849681Wheeled Construction MachineSeptember 2024April 2025Allow700NoNo
18889623PILOT OPERATED BLOW-OFF VALVES FOR HYDRAULIC ACTUATORSSeptember 2024January 2026Abandon1610NoNo
18840259COMPRESSORAugust 2024October 2025Allow1420NoNo
18780697HYDRAULIC CYLINDER CUSHION STEM WITH OVER MOLDED SLEEVEJuly 2024November 2025Allow1630NoNo
18729712ELECTRIC CYLINDER DEVICEJuly 2024March 2026Allow2021NoNo
18774889EXTERNAL FLUID BAR FOR FLUID DRIVEN CYLINDERJuly 2024October 2025Allow1511YesNo
18727095Method with a Hydraulic Pressure Medium Supply Arrangement, and Hydraulic Pressure Medium Supply ArrangementJuly 2024February 2026Allow2020NoNo
18761984HYDRAULIC ACTUATOR AND METHOD FOR OPERATINGJuly 2024January 2026Allow1921NoNo
18661361HYDRAULIC CYLINDER BOTTOM END CAPMay 2024April 2025Allow1110NoNo
18648383DESIGN METHOD FOR SELF-COMPENSATION STRUCTURE OF CAM-LOBE HYDRAULIC MOTOR PLATE DISTRIBUTION SYSTEMApril 2024September 2025Allow1720NoNo
18647826COUPLING STRUCTURE OF BALL NUT AND DAMPER AND HYDRAULIC SUPPLY APPARATUS EMPLOYING THE SAMEApril 2024August 2025Allow1610NoNo
18639219PISTON IN PISTON VARIABLE DISPLACEMENT HYDRAULIC DEVICEApril 2024November 2025Abandon1910NoNo
18702277HYDRAULIC STABILIZATION DEVICEApril 2024December 2025Abandon1910NoNo
18626756Uplock Unlock Electro-Hydrostatic ActuatorApril 2024February 2026Allow2220YesNo
18625640CYLINDER IN PARTICULAR FOR HYDROGEN TANK CYCLING FACILITYApril 2024December 2025Allow2020YesNo
18625421Bicycle-Like Pressure-Differential Engine ApparatusApril 2024November 2025Abandon1910NoNo
18616194FOUR-QUADRANT RADIAL PISTON HYDRAULIC DEVICE AND WORKING METHOD THEREOFMarch 2024May 2024Allow200NoNo
18690460Actuating Device for at Least One Fluidically Drivable ConsumerMarch 2024July 2025Allow1711NoNo
18690103Work MachineMarch 2024July 2025Allow1610NoNo
18688359HYDRAULIC SYSTEM FOR ROTARY IMPLEMENTMarch 2024January 2025Allow1010NoNo
18589826PRESSURIZED SLEEVE FOR ROUTING OF LINEAR COMPONENTSFebruary 2024February 2026Allow2420YesNo
18685233INDIRECT HYDRAULIC LOAD HIERARCHICAL CONTROL SYSTEM AND METHOD FOR WAVE ENERGY DEVICEFebruary 2024July 2024Allow500NoNo
18683384Work MachineFebruary 2024February 2025Allow1200NoNo
18423294TWO-STAGE SPEED CONTROLLERJanuary 2024January 2025Allow1210NoNo
18291580SPRING-ASSISTED LINEAR DRIVEJanuary 2024September 2025Abandon1920NoNo
18420974RELIEF SET-PRESSURE ADJUSTMENT SYSTEMJanuary 2024August 2025Allow1930NoNo
18413119TORQUE CONVERTER WITH TURBINE DRIVEN CLUTCH CONNECTIONJanuary 2024August 2024Allow700NoNo
18577750HYDRAULIC ACTUATOR WITH DUAL PNEUMATIC OPERATION APPLIED AS HYDRAULIC ACTUATION FOR HYDROELECTRIC POWER PLANTSJanuary 2024August 2025Allow1910NoNo
18407105Fan Drive Device with Proportional ValveJanuary 2024June 2025Allow1721NoNo
18536668PISTON IN PISTON VARIABLE DISPLACEMENT HYDRAULIC DEVICEDecember 2023March 2024Allow300NoNo
18535547DRIVE MOTOR DISPLACEMENT CONTROLDecember 2023February 2026Allow2611NoNo
18529312WORKING MACHINEDecember 2023September 2025Allow2211NoNo
18567244A MACHINE COMPRISING A SWING-TRAVEL HYDRAULIC SYSTEMDecember 2023January 2026Allow2630YesNo
18565534ACTUATOR, SAFETY DEVICE, AND FLYING BODYNovember 2023January 2025Allow1331NoNo
18563789Method for Controlling a Hydrostatic DriveNovember 2023June 2025Allow1820NoNo
18516763AIRCRAFT STORE EJECTOR SYSTEMNovember 2023August 2025Allow2111NoNo
18516414Power Control System for Traction and Implement Pump Motors of Electric MachineNovember 2023November 2024Allow1101NoNo
18512213APPARATUS AND METHOD FOR EVACUATION OF A BRAKE SYSTEMNovember 2023April 2025Allow1711NoNo
18508360METHOD OF CONTROLLING HYDRAULIC DEVICENovember 2023May 2025Allow1810NoNo
18507559JOINT STRUCTURE OF TELESCOPIC CYLINDERNovember 2023March 2025Allow1621NoNo
18389045PRESSURE PULSE GENERATIONNovember 2023August 2025Allow2111NoNo
18502407WORKING EQUIPMENT WITH CAPABILITIES OF PREVENTING BUCKLING OF HYDRAULIC CYLINDERNovember 2023January 2025Allow1511NoNo
18557362GPP SEAL SYSTEM MAINTENANCE, REPLACEMENT AND SEISMIC ISOLATIONOctober 2023August 2025Allow2210NoNo
18464416ARTIFICIAL MUSCLE ASSEMBLIES COMPRISING A REINFORCED HOUSINGSeptember 2023December 2024Allow1510YesNo
18449709CYLINDER HEADAugust 2023April 2025Abandon2020YesNo
18449403METHODS AND SYSTEM FOR MITIGATING HYDRAULIC SYSTEM SENSOR DEGRADATIONAugust 2023August 2025Abandon2411NoNo
18276465PILOT PROPORTIONAL CONTROL VALVE APPARATUS, AUTOMATIC CALIBRATION METHOD AND MEDIUMAugust 2023October 2024Allow1510NoNo
18231302Bidirectional Valve System for Bidirectional Servocontrolled MotionAugust 2023June 2025Abandon2320NoNo
18226350A SYSTEM AND METHOD OF HYDRAULIC GRAVITATIONAL ENERGY GENERATIONJuly 2023April 2024Allow910YesNo
18357262ARRANGEMENT FOR OPERATING A HYDRAULIC CONSUMERJuly 2023April 2025Allow2011NoNo
18357586ACTUATION SYSTEM FOR A MOTORJuly 2023April 2025Abandon2111NoNo
18354000DYNAMIC RECRUITMENT MODULATION IN SYSTEMS UTILIZING VARIABLE RECRUITMENTJuly 2023May 2025Allow2110NoNo
18269648MULTI-CONTROL VALVEJune 2023March 2024Allow900YesNo
18214133Dual-Parallel Actuator Piston InterfaceJune 2023September 2025Allow2641YesNo
18340858HYDRAULIC CONTROL VALVE, HYDRAULIC CONTROL SYSTEM, AND TRANSMISSIONJune 2023July 2025Allow2511NoNo
18039796Power Production SystemJune 2023August 2024Allow1410NoNo
18321985FLUID BULGING EQUIPMENT FOR THIN PLATE PARTSMay 2023January 2024Allow800NoNo
18317405MULTI-STAGE, TELESCOPING HYDRAULIC CYLINDER, CYLINDER BEARING PROTECTION SYSTEM, AND SCRAPER FOR CYLINDER RODMay 2023June 2025Allow2550YesNo
18310983JOINT STRUCTURE OF TELESCOPIC CYLINDERMay 2023March 2024Allow1111YesNo
18310640PUMP CONTROL SHOCK ABSORBERMay 2023July 2025Allow2611YesNo
18304889PEDAL FEEL SIMULATORApril 2023September 2024Abandon1720NoNo
18026144Combination of Piston Rings, and Combination Structure of Piston and Piston RingsMarch 2023January 2024Allow1010YesNo
18166953ONE-WAY CLUTCH LAYOUT FOR TORQUE CONVERTORFebruary 2023July 2025Allow2921NoNo
18001650HYDRAULIC DRIVE SYSTEMDecember 2022May 2025Allow2930NoNo
18071716Anti-Pinch Handle for Air PumpNovember 2022October 2024Allow2320NoNo
17927444HYDRAULIC MACHINE COMPRISING BEARINGS FOR SUPPORTING THE ROTATING COMPONENTNovember 2022February 2025Allow2711YesNo
18055244AUTOMATIC OIL RETURN STRUCTURE FOR PISTON PUMPNovember 2022May 2023Allow600NoNo
17984976HYDRAULIC FORCE FIGHT MITIGATIONNovember 2022June 2025Allow3131YesNo
18052336COLLAR FOR TELESCOPIC CYLINDER FOR TIPPER VEHICLES AND TELESCOPIC CYLINDER WITH SUCH A COLLARNovember 2022March 2023Allow500NoNo
18046389PUMP ASSEMBLY, IN PARTICULAR FOR GENERATING PRESSURE IN A BRAKE CIRCUIT OF A CONTROLLABLE POWER BRAKE SYSTEM OF A MOTOR VEHICLEOctober 2022April 2024Allow1820NoNo
17954168CONTROLLER AND METHOD FOR HYDRAULIC APPARATUSSeptember 2022December 2023Allow1520NoNo
17947393SOIL PROCESSING MACHINE AND METHOD FOR OPERATING A SOIL PROCESSING MACHINESeptember 2022January 2024Allow1520NoNo
17946663PISTON LOCK SYSTEM FOR AGRICULTURAL EQUIPMENTSeptember 2022February 2023Allow510NoNo
17944565Bidirectional Valve System for Bidirectional Servocontrolled MotionSeptember 2022September 2023Abandon2010NoNo
17823460ELECTRONIC CONTROL UNIT, HYDRAULIC SYSTEM, AND METHOD FOR CONTROLLING A HYDRAULIC SYSTEMAugust 2022October 2024Allow2621NoNo
17822929AIRCRAFT STORE EJECTOR SYSTEMAugust 2022August 2023Allow1210YesNo
17801965ARRANGEMENT FOR TILTING OR TURNING A WORKING INSTRUMENTAugust 2022July 2024Allow2310NoNo
17890410FLUID ACTUATED WORKING CYLINDER AND METHOD OF MANUFACTURING THE SAMEAugust 2022January 2024Allow1711NoNo
17883688TORQUE CONVERTERAugust 2022November 2023Allow1511YesNo
17883671TORQUE CONVERTER WITH TURBINE DRIVEN CLUTCH CONNECTIONAugust 2022October 2023Allow1511NoNo
17797587EXPANDABLE TUBULAR ELEMENT FOR INFLATABLE CYLINDERAugust 2022March 2025Allow3230YesNo
17877728HYDRAULIC SURGE DAMPENERJuly 2022July 2025Allow3651NoNo
17794209ACTUATOR WITH OFFSET SUPPLY PORTJuly 2022May 2025Allow3330NoNo
17793876DEVICE FOR HOLDING A STEM OF A HYDRAULIC CYLINDER IN POSITION, AND METHOD FOR UNBLOCKING AND BLOCKING A SECONDARY CHECK VALVE OF THE DEVICEJuly 2022September 2024Allow2620NoNo
17758385Dynamic Logic Element For Controlling Pressure Limit In Hydraulic SystemJuly 2022September 2024Abandon2710NoNo
17787675WORKING CYLINDER WITH CUSHIONED END-STROKEJune 2022November 2023Allow1710YesNo
17833549CONTROL VALVE OF HYDRAULIC SYSTEM FOR WORKING MACHINEJune 2022June 2023Allow1210YesNo
17747416ARTIFICIAL MUSCLE ASSEMBLIES COMPRISING A REINFORCED HOUSINGMay 2022May 2023Allow1200NoNo
17775443PISTON UNIT OF A WORKING CYLINDERMay 2022October 2023Allow1711NoNo
17775436WORKING CYLINDER AND METHOD FOR THE PRODUCTION THEREOFMay 2022March 2025Abandon3501NoNo
17775093HYDRAULIC APPARATUS, AND METHOD, FOR THE RECOVERY OF ENERGY IN A OPERATING MACHINEMay 2022March 2025Abandon3410NoNo
17755763WORKING FLUID SUPPLY SYSTEMMay 2022April 2024Allow2311NoNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
3
Examiner Affirmed
2
(66.7%)
Examiner Reversed
1
(33.3%)
Reversal Percentile
55.1%
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
4
Allowed After Appeal Filing
1
(25.0%)
Not Allowed After Appeal Filing
3
(75.0%)
Filing Benefit Percentile
36.2%
Lower 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, 25.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable reconsideration.

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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner NGUYEN, DUSTIN T - Prosecution Strategy Guide

Executive Summary

Examiner NGUYEN, DUSTIN T works in Art Unit 3745 and has examined 398 patent applications in our dataset. With an allowance rate of 73.6%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 32 months.

Allowance Patterns

Examiner NGUYEN, DUSTIN T's allowance rate of 73.6% places them in the 38% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by NGUYEN, DUSTIN T receive 1.69 office actions before reaching final disposition. This places the examiner in the 35% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by NGUYEN, DUSTIN T is 32 months. This places the examiner in the 53% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +17.7% benefit to allowance rate for applications examined by NGUYEN, DUSTIN T. This interview benefit is in the 59% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 32.0% of applications are subsequently allowed. This success rate is in the 67% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 53.0% of cases where such amendments are filed. This entry rate is in the 79% 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, 0.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 21% percentile among all examiners. Note: Pre-appeal conferences show limited success with this examiner compared to others. While still worth considering, be prepared to proceed with a full appeal brief if the PAC does not result in favorable action.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 25.0% of appeals filed. This is in the 3% percentile among all examiners. Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 42.4% 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 0.0% of allowed cases (in the 44% 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 10.9% of allowed cases (in the 89% 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.

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.