USPTO Examiner HU XIAOTING - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18584759SCROLL COMPRESSOR AND REFRIGERATION DEVICEFebruary 2024October 2024Allow810NoNo
18409722UTILIZING HYDROSTATIC AND HYDRAULIC PRESSURE TO GENERATE ENERGY, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODSJanuary 2024April 2024Allow300YesNo
18479826BUOYANCY POWER GENERATOR AND BUOYANCY POWER GENERATION METHODOctober 2023January 2024Allow300NoNo
18364302COMBINATION SEAL FOR A SUPERCRITICAL CARBON DIOXIDE TURBO GENERATORAugust 2023August 2024Allow1300NoNo
18257741A COMPRESSORJune 2023August 2024Allow1410NoNo
18267289Screw CompressorJune 2023July 2024Allow1410YesNo
18321178Clean Electricity Generating System and MethodMay 2023May 2024Allow1200YesNo
18312646Power PlantMay 2023September 2024Allow1620YesNo
18251971SCROLL FLUID MACHINEMay 2023January 2025Abandon2010NoNo
18304663AIRFOIL ASSEMBLY WITH A TRUNNION AND SPARApril 2023May 2024Allow1300NoNo
18302976TURBINE ENGINE WITH TOBI SUPPORTING VANESApril 2023October 2024Allow1810NoNo
18128293COMBINED MARINE HYDROKINETIC ENERGY HARVESTING FROM CURRENTS AND WAVESMarch 2023January 2024Allow1010YesNo
18126668Light Turbine, Turbine, and Turbine Housing for Vane EvaluationMarch 2023August 2023Allow410NoNo
18044861SCROLL COMPRESSORMarch 2023July 2024Abandon1710NoNo
18108101USE OF EXTERNAL AIR FOR CLOSED CYCLE INVENTORY CONTROLFebruary 2023February 2024Allow1210YesNo
18167275Systems and Methods for Fabricating Water-Responsive ActuatorsFebruary 2023April 2024Abandon1401NoNo
18153966UTILIZING HYDROSTATIC AND HYDRAULIC PRESSURE TO GENERATE ENERGY, AND ASSOCIATED SYSTEMS, DEVICES, AND METHODSJanuary 2023May 2023Allow400NoNo
18150738ATMOSPHERIC ENERGY RECOVERYJanuary 2023April 2023Allow300NoNo
18012856SLIDING COMPONENTDecember 2022July 2024Allow1820YesNo
18012853SLIDING COMPONENTDecember 2022November 2023Allow1110YesNo
18068431Thermal Energy Storage with Fluid Flow InsulationDecember 2022August 2023Allow801NoNo
17927599SCROLL COMPRESSORNovember 2022February 2024Allow1510NoNo
17987529SCROLL COMPRESSORNovember 2022April 2024Allow1711NoNo
17935422BEARING AND UNLOADER ASSEMBLY FOR COMPRESSORSSeptember 2022December 2023Allow1510NoNo
17935001ROOTS BLOWERSeptember 2022July 2024Abandon2220NoNo
17933948THERMAL-CYCLE POWERED WATER PUMPSeptember 2022August 2023Allow1110NoNo
17949631Power Generating Device Using Free Falling of Object Due to GravitySeptember 2022March 2024Abandon1820NoNo
17941079SOFT ACTUATORS WITH TWISTED COILED POLYMER ACTUATORSSeptember 2022December 2023Allow1510YesNo
17905998PUMP SPEED CONTROLLING METHOD AND APPARATUS, A COMPUTER PROGRAM AND A COMPUTER READABLE MEDIUM HAVING STORED THEREON THE COMPUTER PROGRAM APPLIED THEREBY AND A PUMPSeptember 2022February 2024Allow1710NoNo
17897774COMPRESSOR WHEELAugust 2022November 2023Allow1420NoNo
17885319RADIAL COMPRESSOR WITH LEADING EDGE AIR INJECTIONAugust 2022October 2023Allow1520YesYes
17797145REFUELING SCREW COMPRESSORAugust 2022September 2023Allow1300YesNo
17873958CONTROLLING PRESSURE ON A JOURNAL BEARINGJuly 2022October 2023Allow1520YesNo
17854655Gas Turbine Engine Heat Exchanger for Annular FlowpathsJune 2022October 2023Allow1610NoNo
17835048Modulated Compressor And Valve AssemblyJune 2022November 2024Abandon3040NoNo
17834875FLUID PUMP WITH INTEGRATED COWLING AND DISCHARGE MUFFLERJune 2022March 2024Allow2140NoNo
17826699MONOLITHIC HEAT-EXCHANGER BODIESMay 2022September 2023Allow1610NoNo
17752765NOVEL EFFICIENT POWER GENERATION DEVICE OF TIDE-WAVE ENERGYMay 2022October 2023Abandon1710NoNo
17772904MAIN BEARING HOUSING ASSEMBLY AND SCROLL COMPRESSOR HAVING THE MAIN BEARING HOUSING ASSEMBLYApril 2022July 2023Allow1500NoNo
17772921SCROLL COMPRESSORApril 2022January 2024Allow2110NoNo
17772208METHODS AND SYSTEMS FOR STARTING AND STOPPING A CLOSED-CYCLE TURBOMACHINEApril 2022September 2023Allow1610NoNo
17728546CENTER CAMSHAFT SCROLL PUMPApril 2022September 2024Abandon2930NoNo
17770618SOLUTION MINED CAVITY SYSTEMApril 2022October 2023Allow1810YesNo
17768333ASSEMBLING OR DISASSEMBLING A GEAR ASSEMBLY OF A WIND TURBINEApril 2022July 2024Allow2700NoNo
17714133MULTI-AXIAL WAVE ENERGY CONVERSION DEVICEApril 2022June 2023Allow1410NoNo
17657472DIRECT-FIRED SUPERCRITICAL CARBON DIOXIDE POWER CYCLE THAT GENERATES POWER AND HYDROGENMarch 2022June 2023Allow1520NoNo
17765123TENSION TORSION STRAP WITH ARCHED WINDING PATTERNMarch 2022June 2024Abandon2720NoNo
17701149ELECTRIC COMPRESSORMarch 2022June 2023Allow1410YesNo
17696012TEMPERATURE DIFFERENTIAL ENGINEMarch 2022March 2024Allow2411YesNo
17695674METHOD OF HYBRID POWER GENERATION IN AN ENVIRONMENT WITH A GAS PRESSURE BELOW THE EARTH'S ATMOSPHERIC PRESSUREMarch 2022June 2022Allow300NoNo
17678739POWER GENERATION USING STORAGE RESERVOIRS AT DIFFERENT ELEVATIONSFebruary 2022January 2023Allow1110YesNo
17678610FLUID DISPLACEMENT ENERGY STORAGEFebruary 2022January 2023Allow1110YesNo
17577710FACILITY FOR GENERATING MECHANICAL ENERGY BY MEANS OF A COMBINED POWER CYCLEJanuary 2022July 2024Allow3010NoNo
17576362MECHANICAL/ELECTRICAL POWER GENERATION SYSTEMJanuary 2022May 2023Allow1610YesNo
17573671Thermal Buoyant High Efficient SystemJanuary 2022August 2023Allow1910YesNo
17574022Compressor Having Damped ScrollJanuary 2022March 2023Allow1410NoNo
17625745SYSTEM FOR CONVERTING THERMAL ENERGY INTO MECHANICAL WORKJanuary 2022March 2024Abandon2620NoNo
17556355BAFFLE PLATE FOR COMPRESSOR, COMPRESSOR, AND REFRIGERATION APPARATUSDecember 2021April 2024Allow2820YesNo
17553020MUFFLER DEVICE AND COMPRESSOR HAVING THE SAMEDecember 2021March 2024Allow2730NoNo
17644214COMPRESSOR FOR HIGH EFFICIENCY HEAT PUMP SYSTEMDecember 2021September 2022Allow900YesNo
17549348Shape Memory Alloy Actuators And Methods ThereofDecember 2021August 2023Allow2020YesNo
17596464POSITIONING ARRANGEMENTDecember 2021October 2024Abandon3430YesNo
17544178SCROLL COMPRESSORDecember 2021January 2023Allow1410NoNo
17543319MULTIPLE LOOP POWER GENERATION USING SUPER CRITICAL CYCLE FLUID WITH SPLIT RECUPERATORDecember 2021August 2023Allow2030NoNo
17608152COMBINED CYCLE POWER DEVICENovember 2021November 2023Abandon2401NoNo
17607387COMBINED CYCLE POWER DEVICEOctober 2021November 2023Abandon2501NoNo
17605344METHOD AND DEVICE FOR BALANCING CRANKSHAFT DEFORMATION, CRANKSHAFT, AND SCROLL COMPRESSOROctober 2021January 2024Allow2720YesNo
17451473SYSTEMS AND METHODS OF GENERATING ELECTRICITY USING HEAT FROM WITHIN THE EARTHOctober 2021June 2023Allow2010YesNo
17502098VANE ROTARY COMPRESSOROctober 2021February 2023Allow1610NoNo
17498748COMPRESSOR INSTALLATION STRUCTURE FOR VEHICLEOctober 2021November 2022Allow1310NoNo
17603151ENGINE APPARATUS AND METHOD FOR OPERATIONOctober 2021June 2024Allow3210YesNo
17437993SCROLL COMPRESSORSeptember 2021July 2023Allow2210NoNo
17430398Intercooled Cascade Cycle Waste Heat Recovery SystemAugust 2021November 2022Allow1501YesNo
17351206SYSTEM, METHOD, AND COMPOSITION FOR GEOTHERMAL HEAT HARVESTJune 2021December 2023Allow3011NoNo
17340133SYSTEM AND METHODS FOR INTEGRATION OF CONCENTRATED SOLAR STEAM GENERATORS TO RANKINE CYCLE POWER PLANTSJune 2021May 2023Allow2410YesNo
17339017TURBINE POWER GENERATION SYSTEMJune 2021May 2023Allow2320YesNo
17299363GROUNDWATER ENHANCED GEOTHERMAL HEAT PUMPJune 2021October 2024Abandon4121YesNo
17308418Carbon negative clean fuel production systemMay 2021January 2023Allow2010YesNo
17244407Coupling Between Crankshaft And Orbiting Scroll PlateApril 2021February 2023Allow2110NoNo
17229027VACUUM PUMPApril 2021November 2023Allow3230NoNo
17214100LOW DENSITY FLUID DISPLACEMENT TO STORE OR GENERATE POWERMarch 2021November 2021Allow810YesNo
17279403GAS TURBINE STATOR VANE, GAS TURBINE PROVIDED WITH SAME, AND METHOD OF MANUFACTURING GAS TURBINE STATOR VANEMarch 2021August 2022Allow1700YesNo
17278686SOLAR POWER GENERATING SYSTEM AND THE METHOD OF GENERATING ELECTRICITY AND PROVIDING HEAT IN SUCH A SYSTEMMarch 2021May 2023Allow2610YesNo
17277919PROGRESSIVE CAVITY PUMP UNIVERSAL JOINTMarch 2021March 2024Abandon3610NoNo
17205243ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUSMarch 2021February 2024Allow3510YesNo
17181076ROTARY COMPRESSORFebruary 2021June 2023Allow2820YesNo
17164286USE OF EXTERNAL AIR FOR CLOSED CYCLE INVENTORY CONTROLFebruary 2021July 2022Allow1800YesNo
17264535ACTUATOR USING PHOTO-RESPONSIVE SHAPE-CHANGING CONSTRUCT AND METHOD OF DRIVING SAMEJanuary 2021November 2022Allow2110YesNo
17160348Oil-Free Scroll Air Compressor with Double Parallel Grooves on Both SidesJanuary 2021October 2022Allow2110YesNo
17159308SCROLL COMPRESSOR AND REFRIGERATION CYCLE DEVICEJanuary 2021October 2022Allow2110YesNo
17154716Compressor Having Seal AssemblyJanuary 2021May 2023Allow2830YesNo
17260173SCROLL COMPRESSORJanuary 2021February 2023Allow2520NoNo
17260098COMPRESSOR APPARATUS AND MANUFACTURING METHOD OF THE SAMEJanuary 2021April 2022Allow1500YesNo
17143325SYSTEM AND METHOD FOR IMPROVING STARTUP TIME IN A FOSSIL-FUELED POWER GENERATION SYSTEMJanuary 2021March 2022Allow1500YesNo
17257143Nested Loop Supercritical CO2 Waste Heat Recovery SystemDecember 2020December 2022Abandon2310NoNo
17137182TESLA-TYPE TURBINE, METHOD FOR OPERATING A TESLA-TYPE TURBINE, APPARATUS FOR CONVERTING THERMAL ENERGY INTO MECHANICAL ENERGY, METHOD FOR CONVERTING THERMAL ENERGY INTO MECHANICAL ENERGY AND METHOD FOR CONVERTING THERMAL ENERGY INTO ELECTRICAL ENERGYDecember 2020July 2022Allow1810NoNo
17256905DAMPING APPARATUS FOR EXHAUST VALVE IN COMPRESSOR, EXHAUST VALVE ASSEMBLY, AND COMPRESSORDecember 2020June 2022Allow1810NoNo
17130957COMBINATION SEAL FOR A SUPERCRITICAL CARBON DIOXIDE TURBO GENERATORDecember 2020March 2023Allow2721YesNo
17124016ENERGY-RECOVERY TURBINES FOR GAS STREAMSDecember 2020March 2023Allow2730NoNo
17101756VAPOR INJECTION DOUBLE REED VALVE PLATENovember 2020June 2022Allow1810YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner HU, XIAOTING.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
1
Examiner Affirmed
1
(100.0%)
Examiner Reversed
0
(0.0%)
Reversal Percentile
18.4%
Lower than average

What This Means

With a 0.0% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is in the bottom 25% across the USPTO, indicating that appeals face significant challenges here.

Strategic Value of Filing an Appeal

Total Appeal Filings
4
Allowed After Appeal Filing
2
(50.0%)
Not Allowed After Appeal Filing
2
(50.0%)
Filing Benefit Percentile
82.2%
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, 50.0% 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 face challenges. Ensure your case has strong merit before committing to full Board review.

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

Examiner HU, XIAOTING - Prosecution Strategy Guide

Executive Summary

Examiner HU, XIAOTING works in Art Unit 3746 and has examined 286 patent applications in our dataset. With an allowance rate of 75.9%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 21 months.

Allowance Patterns

Examiner HU, XIAOTING's allowance rate of 75.9% places them in the 34% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by HU, XIAOTING receive 1.37 office actions before reaching final disposition. This places the examiner in the 29% 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 HU, XIAOTING is 21 months. This places the examiner in the 87% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +35.5% benefit to allowance rate for applications examined by HU, XIAOTING. This interview benefit is in the 86% percentile among all examiners. Recommendation: Interviews are highly effective with this examiner and should be strongly considered as a prosecution strategy. Per MPEP § 713.10, interviews are available at any time before the Notice of Allowance is mailed or jurisdiction transfers to the PTAB.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 29.1% of applications are subsequently allowed. This success rate is in the 45% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 28.3% of cases where such amendments are filed. This entry rate is in the 32% percentile among all examiners. Strategic Recommendation: This examiner shows below-average receptiveness to after-final amendments. You may need to file an RCE or appeal rather than relying on after-final amendment entry.

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 99% 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 75.0% of appeals filed. This is in the 62% percentile among all examiners. Of these withdrawals, 33.3% 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, 35.6% 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 0.0% of allowed cases (in the 40% 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 0.0% of allowed cases (in the 40% 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:

  • Prioritize examiner interviews: Interviews are highly effective with this examiner. Request an interview after the first office action to clarify issues and potentially expedite allowance.
  • 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.

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.