USPTO Examiner LIU HENRY Y - Art Unit 3654

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19173382OUTPUT ASSEMBLY FOR DRIVING A DRIVE PULLEY OF A CONTINUOUSLY VARIABLE TRANSMISSION AND FOR SUPPLYING HYDRAULIC FLUID TO THE DRIVE PULLEY FOR ACTUATING THE DRIVE PULLEYApril 2025March 2026Allow1100NoNo
19038245SUMP AND HEAT EXCHANGER MODULEJanuary 2025February 2026Allow1200NoNo
19005055DRIVEN CLUTCH FOR CONTINUOUSLY VARIABLE TRANSMISSIONDecember 2024January 2026Allow1200NoNo
19002492HIGH-OFFSET BELT TENSIONER WITH COUNTERBALANCE TORSION SPRING FORCEDecember 2024December 2025Allow1200NoNo
18878490TURBOMACHINE HAVING AN IMPROVED OIL-RECOVERY DEVICEDecember 2024January 2026Allow1300NoNo
18984136SUPER CHARGER COMPONENTSDecember 2024January 2026Allow1300NoNo
18961470REAR SPROCKETNovember 2024February 2026Allow1400NoNo
18952984Front Derailleur with Integral Cadence SensorNovember 2024January 2025Allow200NoNo
18921000INTERNAL COMBUSTION ENGINEOctober 2024March 2026Allow1710NoNo
18917803DOUBLE CAM ACTUATION SYSTEM FOR CVTOctober 2024February 2026Allow1610NoNo
18906190TRANSMISSION DEVICE FOR BICYCLEOctober 2024December 2025Allow1400NoNo
18904273CHAIN GUIDE WITH PRELOADED GUIDE ELEMENTSOctober 2024December 2025Allow1500NoNo
18900923TURNING APPARATUS WITH MINIMAL QUANTITY LUBRICATION BASED ON MAGNETIC CIRCULATION AND ULTRASOUND-ASSISTED INFILTRATIONSeptember 2024December 2025Allow1400NoNo
18850687POWER TRANSMISSION BELT AND RELATED TRANSMISSION SYSTEMSeptember 2024March 2026Allow1710NoNo
18891298METHOD FOR DETECTING SLIP IN A BELT DRIVEN INTEGRATED STARTER SYSTEMSeptember 2024November 2025Allow1400NoNo
18847852POWER TRANSMISSION DEVICESeptember 2024September 2025Allow1200NoNo
18847773CONTROL DEVICE FOR TRANSMISSION, CONTROL METHOD FOR TRANSMISSION, AND NON-TRANSITORY COMPUTER-READABLE MEDIUMSeptember 2024September 2025Allow1200NoNo
18846965POWER TRANSMISSION DEVICESeptember 2024August 2025Allow1100NoNo
18846955POWER TRANSMISSION DEVICESeptember 2024October 2025Allow1300NoNo
18846551CONTROL DEVICE FOR TRANSMISSIONSeptember 2024August 2025Allow1100NoNo
18846395TRANSMISSIONSeptember 2024August 2025Allow1100NoNo
18813616CONTINUOUSLY VARIABLE TRANSMISSIONAugust 2024January 2026Allow1710NoNo
18810190BICYCLE GEARBOX HAVING SEGMENTED SPROCKETSAugust 2024December 2025Allow1610NoNo
18808131TENSIONING ADJUSTING MECHANISM FOR DRUMAugust 2024July 2025Allow1100NoNo
18836727TENSIONER WITH TENSIONER LOCK WITH PROJECTION THAT INCLUDES FIRST AND SECOND PROJECTION PARTSAugust 2024October 2025Allow1401NoNo
18796814POWER TRANSMISSION DEVICEAugust 2024October 2025Allow1510NoNo
18792313BICYCLE FRONT SPROCKETAugust 2024September 2025Allow1410NoNo
18791386BICYCLE DERAILLEURJuly 2024September 2025Allow1301NoNo
18785660Belt and Actuator Belt SystemJuly 2024March 2026Allow1920NoNo
18781553Method for Controlling a Gear Shifting Means of a BicycleJuly 2024July 2025Allow1100NoNo
18778228CONTINUOUSLY VARIABLE TRANSMISSION WITH A SELECT REVOLUTIONS PER MINUTE OUTPUTJuly 2024October 2025Allow1510NoNo
17912490TRANSMISSION OIL FILTER MODULEJuly 2024September 2025Allow3600NoNo
18772932DERAILLEUR FOR A BICYCLEJuly 2024September 2025Allow1501NoNo
18728333BICYCLE DRIVETRAIN AND BICYCLE INCLUDING THE SAMEJuly 2024January 2026Allow1910NoNo
18762631CVT CONES THAT USE COMMERCIALLY AVAILABLE TRANSMISSION BELTSJuly 2024January 2026Abandon1810NoNo
18753531COMPRESSOR AND HOME APPLIANCE INCLUDING THE SAMEJune 2024October 2025Allow1510YesNo
18724100OIL-INJECTED COMPRESSOR DEVICEJune 2024September 2025Allow1510NoNo
18751993POWER TRANSMISSION BELT WITH CONDUCTIVE RUBBER MIXTURE HAVING GRAPHENEJune 2024May 2025Allow1100NoNo
18751966LUBRICATION SYSTEM FOR A TURBINE ENGINEJune 2024June 2025Allow1200NoNo
18751984LUBRICATION SYSTEM FOR A TURBINE ENGINEJune 2024October 2025Allow1610NoNo
18722137RUBBER COMPOSITION FOR TRANSMISSION BELT AND TRANSMISSION BELTJune 2024September 2025Allow1510NoNo
18722259Automatic TensionerJune 2024August 2025Allow1410NoNo
18744178CONTINUOUSLY VARIABLE TRANSMISSION CLUTCH WITH MOVABLE SHEAVE ACTUATORJune 2024June 2025Allow1200NoNo
18744024DRIVE SYSTEM COMPRISING A DRIVE SHAFT AND A CHAINRINGJune 2024July 2025Allow1300NoNo
18741736DISC SPROCKETS, DISC SPROCKET SYSTEMS, AND METHODS FOR ASSEMBLING THE SAMEJune 2024September 2025Allow1510NoNo
18737145PULLEY ARRANGEMENT FOR A BELT DRIVE AND AGRICULTURAL MACHINE WITH SUCHJune 2024July 2025Allow1410NoNo
18737337Systems and Methods for Assembling and Repairing ChainsJune 2024August 2024Allow200NoNo
18717042A SPROCKET ASSEMBLY, AND A METHOD FOR ASSEMBLING OR REPLACING SAMEJune 2024June 2025Allow1200NoNo
18734705GEAR, MOTOR-GEAR UNIT, VEHICLE, GENERATOR WITH A GEAR, AND FORCE TRANSMITTING ELEMENTJune 2024August 2025Allow1410NoNo
18732757TRANSMISSION DEVICE AND AGRICULTURAL MACHINE HAVING A TRANSMISSION DEVICEJune 2024June 2025Allow1300NoNo
18732977CVT SPIDER CLUTCH WITH ROLLER SYSTEMJune 2024April 2025Allow1000NoNo
18733478Separator for Liquid and GasJune 2024February 2026Abandon2010NoNo
18678959SPROCKETMay 2024June 2025Allow1210NoNo
18713468SPRING STRUCTURE FOR MECHANICAL OIL PUMPMay 2024July 2024Allow200NoNo
18672088LEVEL SENSING FILL WITHOUT A SIGHT GAUGEMay 2024June 2025Allow1301NoNo
18669955RAW EDGE V-BELTMay 2024March 2025Allow1000NoNo
18668461ELECTROMECHANICAL REAR DERAILLEURMay 2024October 2025Allow1710NoNo
18664584CONTINUOUSLY VARIABLE TRANSMISSION COOLINGMay 2024September 2025Allow1620NoNo
18706971REDUCTION RATIO CHANGING DEVICEMay 2024October 2025Abandon1710NoNo
18653358DERAILLEUR HANGERMay 2024October 2025Allow1801NoNo
18648470Hydraulic Pump ArrangementApril 2024July 2025Allow1510NoNo
18647376DRIVEN PULLEY FOR A CONTINUOUSLY VARIABLE TRANSMISSIONApril 2024September 2025Allow1610NoNo
18701659Belt Drive for Driving a Motor Vehicle, in Particular a Motorcycle, and Motor Vehicle, in Particular a MotorcycleApril 2024August 2025Allow1610NoNo
18632457Accessory Rotary Drive System and MethodApril 2024September 2025Allow1711NoNo
18631734DAMPER FOR A BICYCLE COMPONENTApril 2024October 2025Allow1920NoNo
18699413IMPROVED FILTERING PULLEYApril 2024May 2025Allow1300NoNo
18624239DERAILLEUR FOR HUMAN-POWERED VEHICLEApril 2024February 2025Allow1000NoNo
18624303REAR GEARSHIFT MECHANISM FOR COAXIAL INSTALLATIONApril 2024August 2025Allow1610NoNo
18697154Toothed Belt and Manufacturing Method ThereforMarch 2024April 2025Allow1200NoNo
18621431BELT TENSIONING APPARATUS FOR DRIVE MECHANISMSMarch 2024May 2025Allow1320YesNo
18613857SPROCKET ASSEMBLYMarch 2024May 2025Allow1410NoNo
18694014TORSIONAL DAMPERMarch 2024March 2025Allow1200NoNo
18610690ALTERNATORMarch 2024March 2025Allow1101NoNo
18692155COMPRESSOR-OIL RECEIVING DEVICE AND COMPRESSOR SYSTEM HAVING A COMPRESSOR-OIL RECEIVING DEVICE OF THIS TYPEMarch 2024March 2025Allow1200NoNo
18690380PORTABLE CLASS-II LUBRICATION DEVICEMarch 2024August 2025Allow1810YesNo
18586054DEVICES FOR RETAINING A BICYCLE CHAIN ON A SPROCKETFebruary 2024March 2025Allow1310NoNo
18584714CONTINUOUSLY VARIABLE TRANSMISSIONFebruary 2024November 2024Allow900NoNo
18684873LUBRICANT DISPENSERFebruary 2024June 2025Allow1620NoNo
18437592SPROCKET ASSEMBLY AND A METHOD FOR PREVENTING INGRESS OF DIRT IN A BEARING OF A SPROCKET ASSEMBLYFebruary 2024August 2025Allow1800NoNo
18434808BICYCLE DERAILLEUR AND CHARGING CABLE FOR BICYCLE DERAILLEURFebruary 2024December 2025Allow2240NoNo
18429961BICYCLE COMPONENTFebruary 2024October 2025Allow2030YesNo
18429406Belt Pulley AssemblyJanuary 2024April 2025Allow1401NoNo
18294047A TRANSMISSION SYSTEM FOR A BICYCLEJanuary 2024August 2025Allow1810NoNo
18426966SQUEEZE FILM DAMPER AND A ROTATING MACHINERYJanuary 2024May 2025Allow1600NoNo
18292898FLEXIBLE RAMP FOR RAISING A LEVELING EXTENSIONJanuary 2024September 2025Allow2010NoNo
18422487REAR DERAILLEURJanuary 2024January 2025Allow1200NoNo
18292010WEAR PAD, TELESCOPIC BOOM ASSEMBLY AND WORK MACHINEJanuary 2024September 2025Allow2010YesNo
18420967NOZZLEJanuary 2024October 2025Allow2020NoNo
18291105ARTIFICIAL VERTEBRAL BODYJanuary 2024May 2025Allow1600NoNo
18417862METHOD OF PRODUCING A GAS TURBINE ENGINE BEARING HOUSINGJanuary 2024April 2025Allow1501NoNo
18580326IMPROVED FILTERING PULLEYJanuary 2024February 2025Allow1310NoNo
18415983BELT TENSIONER WITH INTEGRATED IDLER PULLEY FOR AN ENDLESS DRIVE BELT OF AN ENGINEJanuary 2024May 2025Allow1610NoNo
18410015BICYCLE CHAIN WITH BUSHING LINKJanuary 2024March 2025Allow1401NoNo
18408576MINIMUM GRIP SPROCKET DRIVE SYSTEMJanuary 2024November 2024Allow1000NoNo
18576562TEMPERATURE CONTROL DEVICE FOR MACHINE TOOLJanuary 2024February 2025Allow1400NoNo
18575663SLIDING COMPONENTSDecember 2023September 2025Allow2010NoNo
18574518JOINED BODY, METHOD OF MANUFACTURING JOINED BODY, AND SHOCK ABSORBERDecember 2023March 2026Allow2700NoNo
18392879BICYCLE REAR DERAILLEURDecember 2023December 2024Allow1100NoNo
18545194MULTIPLE SPROCKET ARRANGEMENT AND MODULAR SPROCKET ARRANGEMENT SYSTEMDecember 2023June 2025Allow1810NoNo
18542296COMBINED MACHINE WITH SELECTIVE ACTUATIONDecember 2023November 2024Allow1100NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LIU, HENRY Y.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
24
Examiner Affirmed
12
(50.0%)
Examiner Reversed
12
(50.0%)
Reversal Percentile
76.9%
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
73
Allowed After Appeal Filing
44
(60.3%)
Not Allowed After Appeal Filing
29
(39.7%)
Filing Benefit Percentile
89.7%
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, 60.3% 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

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 LIU, HENRY Y - Prosecution Strategy Guide

Executive Summary

Examiner LIU, HENRY Y works in Art Unit 3654 and has examined 1,585 patent applications in our dataset. With an allowance rate of 79.1%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 27 months.

Allowance Patterns

Examiner LIU, HENRY Y's allowance rate of 79.1% places them in the 48% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by LIU, HENRY Y receive 1.33 office actions before reaching final disposition. This places the examiner in the 19% 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 LIU, HENRY Y is 27 months. This places the examiner in the 74% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +10.3% benefit to allowance rate for applications examined by LIU, HENRY Y. This interview benefit is in the 43% 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, 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 29.8% of cases where such amendments are filed. This entry rate is in the 43% 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, 93.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 68% 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 70.4% of appeals filed. This is in the 57% percentile among all examiners. Of these withdrawals, 47.4% 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, 45.3% are granted (fully or in part). This grant rate is in the 39% 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 1.3% of allowed cases (in the 70% percentile). This examiner makes examiner's amendments more often than average to place applications in condition for allowance (MPEP § 1302.04).

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.0% of allowed cases (in the 39% 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:

    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.