USPTO Examiner LIU CHRIS Q - Art Unit 3761

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19170736WIDE LASER BEAM HIGH-THROUGHPUT ADDITIVE-MANUFACTURING AND CLADDING DEVICE AND WORKING METHOD THEREOFApril 2025August 2025Allow400YesNo
19001417Automatic Decanting ApparatusDecember 2024July 2025Allow710YesNo
18875719PREPARATION METHOD FOR ADDITIVE MANUFACTURING TITANIUM ALLOYSDecember 2024August 2025Allow810YesNo
18281575DEVICE AND METHOD FOR RECYCLING SELECTIVE LASER MELTING GRADIENT POWDERSAugust 2024September 2025Abandon2510YesNo
18625573INTEGRATED ELECTRODE MAINTENANCE FOR ROBOTIC WELDING CELLApril 2024January 2025Allow1000NoNo
18586252ELECTRODE SHEET MANUFACTURING APPARATUS AND POWER STORAGE DEVICE MANUFACTURING METHODFebruary 2024September 2024Allow700YesNo
18395315LASER WELDING METHOD AND MONITORING METHOD FOR SECONDARY BATTERYDecember 2023August 2024Allow700NoNo
18492168METHOD OF MAKING E-VAPING CARTRIDGE WITH HYDROGEL IN CAVITYOctober 2023January 2026Allow2750YesNo
18459340ROTATING MAGNET HEAT INDUCTIONAugust 2023April 2025Allow1930NoNo
18238800METHOD FOR 3D LASER PRINTING BY HEATING/FUSING METAL WIRE OR POWDER MATERIAL WITH CONTROLLABLE MELT POOLAugust 2023March 2024Allow700YesNo
18357186APPARATUS AND METHOD FOR LASER MACHINING A WORKPIECEJuly 2023April 2024Allow920YesNo
18342831APPARATUS FOR A LASER WELDING SYSTEMJune 2023November 2025Allow2820YesNo
18204747LASER ADDITIVE MANUFACTURING AND WELDING WITH HYDROGEN SHIELD GASJune 2023August 2024Abandon1410NoNo
18327729Digital Power Supply With Wireless Monitoring and ControlJune 2023May 2024Allow1101YesNo
18027632LASER APPARATUS AND LASER MACHINING APPARATUSMarch 2023February 2024Allow1020YesNo
18115246Systems, Methods, and Apparatus to Preheat Welding WireFebruary 2023February 2026Allow3620NoYes
18160571LASER WELDING TOOLING AND LASER WELDING SYSTEMSJanuary 2023November 2025Allow3430YesNo
18090376PULSED LASER PROCESSING OF MEDICAL DEVICESDecember 2022January 2024Allow1321YesNo
18089037MODULAR HEATER ASSEMBLY WITH INTERCHANGEABLE AUXILIARY SENSING JUNCTIONSDecember 2022September 2024Allow2101YesNo
18068669HOLDING TABLE ASSEMBLY AND PROCESSING METHODDecember 2022October 2025Allow3400YesNo
18084951Wire Electrical Discharge MachineDecember 2022February 2026Allow3810YesNo
18065709INTRAVASCULAR DEVICE INCLUDING HIGH VOLTAGE COAXIAL CONDUCTOR WIRINGDecember 2022November 2025Allow3500NoNo
18010107WORKPIECE PROCESSING METHOD AND PROCESSING MACHINEDecember 2022November 2025Allow3500NoNo
17803438HIGH SPEED CONVECTION FRYERDecember 2022May 2024Allow2310YesNo
18070772POWER SUPPLY UNIT FOR AEROSOL GENERATION DEVICENovember 2022January 2026Allow3710YesNo
18070586CONTAINER WITH HEATING/COOLING ASSEMBLY AND REMOVABLE POWER SOURCE MODULESNovember 2022July 2025Abandon3121NoNo
18070151Sensing and Control of Additive Manufacturing ProcessesNovember 2022November 2023Allow1200NoNo
17988515Additive Manufacturing System Using a Pulse Modulated Laser for Two-Dimensional PrintingNovember 2022October 2023Allow1100NoNo
17940631MULTI POINT PROJECTION WELDING METHOD AND LOADING-WELDING SYSTEM FOR CAR-BODY ASSEMBLY USING THE SAMESeptember 2022January 2024Allow1610NoNo
17897952AUTOMATED FOOD MANAGEMENT SYSTEMAugust 2022July 2025Allow3520YesNo
17892491IRRADIATION DEVICES WITH OPTICAL MODULATORS FOR ADDITIVELY MANUFACTURING THREE-DIMENSIONAL OBJECTSAugust 2022February 2024Allow1821YesNo
17806285LASER OUTPUT POWER CONTROL METHOD, AND LASER PROCESSING DEVICEJune 2022April 2025Allow3500NoNo
17783587ACTIVE AIR CONDITIONING IN SLM PROCESSESJune 2022November 2025Abandon4220NoNo
17828852HEATING PUMP COVER AND HEATING PUMPMay 2022November 2025Allow4220NoNo
17827598DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAMEMay 2022April 2025Allow3500YesNo
17825026APPARATUS FOR A LASER WELDING SYSTEMMay 2022July 2025Allow3811YesNo
17751180COOKING APPARATUSMay 2022December 2022Allow600YesNo
17662344ELECTRODE TRANSLATION CONTROL SYSTEM FOR AN ELECTRIC ARC FURNACEMay 2022November 2025Allow4201YesNo
17735421Method for applying a reinforcement of metal material to a component of metal material, particularly in the construction of a motor-vehicle body or a sub-assembly thereofMay 2022October 2023Allow1701YesNo
17723498SEGMENTED BEAM-SHAPING ELEMENT AND LASER PROCESSING INSTALLATIONApril 2022June 2025Allow3810YesNo
17722063Method for Realizing High-Speed Cladding of Hollow Offset-Focus Annular LaserApril 2022August 2025Allow4010YesNo
17766506LASER DEVICE FOR GENERATING LASER RADIATION AND 3D PRINTING DEVICE COMPRISING SUCH A LASER DEVICEApril 2022February 2026Abandon4601NoNo
17763383WATER JET LASER PROCESSING MACHINEMarch 2022April 2025Allow3710YesNo
17762105LASER PROCESSING MONITORING METHOD AND LASER PROCESSING MONITORING DEVICEMarch 2022February 2026Abandon4701NoNo
17642411LASER PROCESSING DEVICE AND LASER LIGHT MONITORING METHODMarch 2022August 2025Allow4110NoNo
17642000WELDING APPARATUSMarch 2022August 2025Abandon4120NoNo
17686894SYSTEM AND METHOD FOR CONTROLLING OUTPUT OF LIGHT TOWARDS OBJECTSMarch 2022April 2024Allow2541YesNo
17685920Laser-Based Method and System for Marking a WorkpieceMarch 2022September 2025Abandon4310NoNo
17683481MULTI-PURPOSE DRINK MACHINEMarch 2022December 2025Abandon4511NoNo
17637790SURFACE TREATMENT METHODFebruary 2022April 2025Allow3710YesNo
17636868POWDER MATERIALFebruary 2022December 2025Allow4520YesNo
17674417ANNULAR HOLLOW OFFSET-FOCUS LASER CLADDING DEVICEFebruary 2022August 2023Allow1710NoNo
17628236COOKING APPLIANCE HAVING A PEF GENERATOR, PEF SYSTEM AND METHODJanuary 2022July 2025Allow4201YesNo
17577332LASER WORKING MACHINE AND METHOD FOR MAINTAINING LASER WORKING MACHINEJanuary 2022January 2026Allow4820YesNo
17563181REPAIRING LASER WELDING METHOD AND REPAIRING LASER WELDING DEVICEDecember 2021August 2025Allow4411YesNo
17562809ELECTRODE SHEET MANUFACTURING APPARATUS AND POWER STORAGE DEVICE MANUFACTURING METHODDecember 2021January 2024Allow2410YesNo
17558511METHOD AND APPARATUS FOR FABRICATION OF ARTICLES BY MOLTEN AND SEMI-MOLTEN DEPOSITIONDecember 2021November 2024Allow3510NoNo
17617410PROCESSING APPARATUS, PROCESSING METHOD, AND NON-TRANSITORY STORAGE MEDIUMDecember 2021January 2026Abandon5020YesNo
17542441ENGRAVING MACHINEDecember 2021June 2023Allow1800YesNo
17537859VEHICLE WINDOW GLASS WITH METAL TERMINALNovember 2021March 2025Allow3910NoNo
17537803TECHNIQUES FOR FORMING COMPOSITE SANDWICH STRUCTURESNovember 2021November 2024Allow3500NoNo
17535420SYSTEM FOR HEATING AND FROTHING A BEVERAGE, A DEVICE FOR HEATING AND FROTHING A BEVERAGE SUITABLE FOR BEING USED IN SUCH A SYSTEM, A FROTH WAND SUITABLE FOR BEING USED IN SUCH A SYSTEM AND A METHOD OF PREPARING A BEVERAGE USING SUCH A SYSTEMNovember 2021January 2024Allow2500YesNo
17535416SYSTEM FOR HEATING AND FROTHING A BEVERAGE, A DEVICE FOR HEATING AND FROTHING A BEVERAGE SUITABLE FOR BEING USED IN SUCH A SYSTEM, A FROTH WAND SUITABLE FOR BEING USED IN SUCH A SYSTEM AND A METHOD OF PREPARING A BEVERAGE USING SUCH A SYSTEMNovember 2021January 2024Allow2500YesNo
17533726ELECTRIC KETTLE AND POWER SUPPLY UNITNovember 2021May 2025Allow4111YesNo
17532897SPOT WELDING METHOD FOR MULTI-LAYERS AND SPOT WELDING APPARATUS USING THE SAMENovember 2021June 2025Allow4320YesNo
17456037AIR MANAGEMENT SYSTEM FOR LASER WELDING WITH AIRFLOW OPTIMIZING DEFLECTORNovember 2021March 2024Allow2821YesNo
17524853LASER MACHINING METHODNovember 2021July 2023Allow2000YesNo
17608779HEATING ELEMENT FOR DIN RAILNovember 2021December 2025Abandon4920YesNo
17518106LASER MARKING SYSTEM FOR VEHICLE BODY CUSTOMIZATIONNovember 2021June 2025Allow4311YesNo
17509656Food Stuff Boiling Apparatus with Extraction HandleOctober 2021March 2025Abandon4110NoNo
17505698WORKPIECE HAVING WELD, WELDING APPARATUS FOR WORKPIECE, AND WELDING METHODOctober 2021June 2023Allow1900YesNo
17505366THERMAL IMMERSION CIRCULATOROctober 2021January 2024Allow2711YesNo
17604292DEVICE FOR THE DELIVERY OF PRODUCTS PROCESSED FROM FRESH FRUITS AND/OR VEGETABLESOctober 2021November 2024Allow3700YesNo
17602837LIGHT EMITTING AND RECEIVING MODULE WITH SNOW MELTING HEATEROctober 2021August 2025Abandon4621NoNo
17493605ELECTRIC KETTLE AND POWER SUPPLY UNITOctober 2021May 2025Allow4311YesNo
17482566LASER-CUTTING USING SELECTIVE POLARIZATIONSeptember 2021February 2025Allow4011YesNo
17448072PROCESSING APPARATUSSeptember 2021June 2024Allow3300NoNo
17438017BEAM-FORMING AND DEFLECTING OPTICAL SYSTEM FOR A LASER MACHINING DEVICE, AND METHOD FOR MACHINING A WORKPIECE USING A LASER BEAMSeptember 2021April 2022Allow710YesNo
17472320INSET FRAMES FOR SUPPORTING COOKING ACCESSORIES IN COOKBOXES OF GRILLSSeptember 2021March 2025Allow4212YesNo
17469977METHOD FOR OPERATING AN INDUCTION HOB AND INDUCTION HOBSeptember 2021September 2025Allow4911YesNo
17405158Heated JoystickAugust 2021February 2025Allow4210YesNo
17396665APPARATUS FOR PREPARING CUSTOM RECIPESAugust 2021November 2024Abandon4010NoNo
17395680ON-DEVICE LOW POWER, RAPID RESPONSE HEATERS FOR DEVICE CALIBRATION PROCESSESAugust 2021February 2026Allow5431YesNo
17395079THREE-PIECE ELECTRONIC VAPING DEVICE WITH PLANAR HEATERAugust 2021June 2025Allow4711NoNo
17387950DEVICE AND METHOD OF CUTTING POLARIZING PLATEJuly 2021July 2024Allow3600YesNo
17443070DYNAMIC BEAM DEFLECTION AND SHAPING FOR HIGH-POWER LASER MACHINING PROCESSJuly 2021August 2024Allow3720YesNo
17364657WAVELENGTH CONVERSION MEMBER MANUFACTURING METHOD AND METHOD FOR MANUFACTURING LIGHT-EMITTING DEVICEJune 2021April 2024Allow3300NoNo
17361560LASER PROCESSING APPARATUSJune 2021March 2024Allow3320YesNo
17416463A LIQUID HEATING APPLIANCE FOR MAKING A BEVERAGE AND ASSOCIATED METHOD, POWER MANAGEMENT SYSTEM AND MICROCONTROLLER READABLE MEDIUMJune 2021September 2024Allow3911NoNo
17350423ASYNCHRONOUS CONVERSION OF METALS TO METAL CERAMICSJune 2021September 2024Abandon3901NoNo
17342956COOKING APPARATUS, CONTROL METHOD, AND CONTROL SYSTEM THEREOFJune 2021February 2025Allow4411YesNo
17335395Welding Method For Connecting A First Connector To A Second Connector, The Use Of The Welding Method, And A Welded ConnectionJune 2021October 2024Allow4131YesNo
17332899BEVERAGE MAKERMay 2021June 2024Allow3610NoNo
17294895Base Unit And System For Liquid Circulation And Heating And For VacuumizingMay 2021February 2024Allow3300NoNo
17294936LIQUID HEATING VESSELSMay 2021October 2024Allow4120YesNo
17314559LASER IRRADIATION APPARATUSMay 2021September 2024Allow4111NoNo
17235701COMPOSITE DEVICE FOR HIGH-PRECISION LASER ADDITIVE/SUBTRACTIVE MANUFACTURINGApril 2021November 2022Allow1910YesNo
17232412LASER PROCESSING APPARATUSApril 2021January 2024Allow3330YesNo
17230858HYBRID WAFER DICING APPROACH USING A SPATIALLY MULTI-FOCUSED LASER BEAM LASER SCRIBING PROCESS AND PLASMA ETCH PROCESSApril 2021November 2025Abandon5540YesYes
17283899HEATABLE GLAZING PANELApril 2021September 2025Allow5340YesNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
8
Examiner Affirmed
7
(87.5%)
Examiner Reversed
1
(12.5%)
Reversal Percentile
25.2%
Lower than average

What This Means

With a 12.5% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
47
Allowed After Appeal Filing
13
(27.7%)
Not Allowed After Appeal Filing
34
(72.3%)
Filing Benefit Percentile
40.7%
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, 27.7% 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 face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner LIU, CHRIS Q - Prosecution Strategy Guide

Executive Summary

Examiner LIU, CHRIS Q works in Art Unit 3761 and has examined 347 patent applications in our dataset. With an allowance rate of 73.8%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 39 months.

Allowance Patterns

Examiner LIU, CHRIS Q's allowance rate of 73.8% 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 LIU, CHRIS Q receive 2.05 office actions before reaching final disposition. This places the examiner in the 54% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by LIU, CHRIS Q is 39 months. This places the examiner in the 28% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +46.0% benefit to allowance rate for applications examined by LIU, CHRIS Q. This interview benefit is in the 91% 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, 28.2% of applications are subsequently allowed. This success rate is in the 51% 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 24.4% of cases where such amendments are filed. This entry rate is in the 33% 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, 145.5% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 89% 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 81.0% of appeals filed. This is in the 74% percentile among all examiners. Of these withdrawals, 52.9% 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, 35.6% are granted (fully or in part). This grant rate is in the 23% percentile among all examiners. Strategic Note: Petitions are rarely granted regarding this examiner's actions compared to other examiners. Ensure you have a strong procedural basis before filing a petition, as the Technology Center Director typically upholds this examiner's decisions.

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 4.7% 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:

  • 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.