USPTO Examiner CHAU LISA N - Art Unit 1785

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
17130857MAGNETIC TAPE, MAGNETIC TAPE CARTRIDGE, AND MAGNETIC TAPE APPARATUSDecember 2020June 2022Allow1700NoNo
17062318SINTERED MAGNET AND METHOD FOR PRODUCING SINTERED MAGNETOctober 2020March 2025Abandon5340YesNo
17022919MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING DEVICESeptember 2020March 2022Allow1820YesNo
17006200COMPOSITE FIBERS AND MATRICES THEREOFAugust 2020March 2023Abandon3121NoNo
16991872COMPACT ENERGY CONVERSION SYSTEMAugust 2020March 2024Abandon4301NoNo
16986894MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING DEVICEAugust 2020February 2024Abandon4340NoNo
16933267MAGNETIC FLOOR SURFACEJuly 2020March 2025Allow5670YesNo
16880051LIGHT SCANNING APPARATUSMay 2020March 2025Allow5840NoNo
16829229CURING AGENT FOR MAGNETIC RECORDING MEDIUM, COMPOSITION FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUMMarch 2020September 2024Abandon5441NoNo
16785923DEFROST/HEATING SOLUTION FOR GLAZED POLYCARBONATEFebruary 2020September 2024Abandon5521NoNo
16693960MAGNETIC SUBSTRATE AND METHOD OF MANUFACTURING THE SAME, BONDING STRUCTURE BETWEEN MAGNETIC SUBSTRATE AND INSULATING MATERIAL, AND CHIP COMPONENT HAVING THE BONDING STRUCTURENovember 2019September 2023Abandon4620NoNo
16586889BONDED MAGNET AND METHOD OF PREPARING THE SAMESeptember 2019July 2024Allow5831NoNo
16556996SHIELDING FOR SUPERCONDUCTING DEVICESAugust 2019November 2024Abandon6021YesNo
16341016PRINTED FLEXIBLE ELECTRONIC DEVICES CONTAINING SELF-REPAIRING STRUCTURESApril 2019January 2025Abandon6031YesYes
16292681RARE EARTH PERMANENT MAGNETMarch 2019October 2020Allow1920NoNo
16284731AMORPHOUS ALLOY MAGNETIC COREFebruary 2019October 2021Allow3210NoNo
16266328PROPPANTS AND ANTI-FLOWBACK ADDITIVES INCLUDING COMPOSITIONS COMPRISING CALCIUM, MULTI-FOIL CROSS SECTIONS, AND/OR SIZE RANGESFebruary 2019April 2021Abandon2610NoNo
16194153USING MAGNETIC FIELDS TO INCREASE THE BONDING AREA OF AN ADHESIVE JOINTNovember 2018July 2024Abandon6041YesNo
16144604METAL MAGNETIC FILM AND MAGNETIC SHEETSeptember 2018May 2022Abandon4340NoNo
16105062ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND HARD DISK DRIVEAugust 2018December 2020Abandon2820YesNo
16073175Pearlescent Metallic Effect Paper Material With High Lightfastness And Related Manufacturing MethodJuly 2018September 2022Abandon4951YesNo
16036809PLATE MEMBER, CASING INCLUDING PLATE MEMBER AND MANUFACTURING METHOD THEREOFJuly 2018March 2022Abandon4431NoNo
16029825MAGNETS COMPRISING A COATING INCLUDING AN ALUMINUM LAYERJuly 2018December 2024Abandon6051NoYes
16026035DUST COREJuly 2018November 2022Abandon5240YesNo
16020188ALUMINUM ALLOY HOUSING AND PREPARATION METHOD THEREFORJune 2018April 2021Abandon3301NoNo
16009825MAGNETIC TAPEJune 2018September 2020Allow2710NoNo
16009018MAGNETIC MATERIAL, ELECTRONIC COMPONENT, AND METHOD FOR MANUFACTURING MAGNETIC MATERIALJune 2018September 2023Allow6061YesNo
16008149MAGNETIC TAPEJune 2018May 2021Abandon3520NoNo
15996665LAGGING MATERIALJune 2018January 2022Abandon4420YesNo
15780693MAGNETIC ISOLATOR, METHOD OF MAKING THE SAME, AND DEVICE CONTAINING THE SAMEJune 2018October 2024Abandon6021NoYes
15992588STRUCTURE OF BICYCLE CABLE HOUSINGMay 2018April 2021Abandon3420NoNo
15987076MAGNETIC SHEET AND ELECTRONIC DEVICEMay 2018February 2024Abandon6031YesNo
15985661MULTILAYER EXCHANGE SPRING RECORDING MEDIAMay 2018May 2021Allow3620YesNo
15977112MAGNETIC DISK AND MANUFACTURING METHOD THEREOFMay 2018June 2020Abandon2510NoNo
15970886TUBE WITH INDICATION FUNCTIONMay 2018June 2020Abandon2510NoNo
15970961COMPOSITE SHAFTMay 2018August 2022Abandon5251NoNo
15968885CONTINUOUS FIBER-REINFORCED SILICON CARBIDE MEMBER, MANUFACTURING METHOD THEREOF, AND NUCLEAR REACTOR STRUCTURAL MEMBERMay 2018February 2025Allow6081YesNo
15967126ELECTRONIC COMPONENT AND METHOD FOR MANUFACTURING THE SAMEApril 2018July 2022Allow5021YesNo
15966107SULFUR AND ALKALI METAL CONTAINING IMIDAZOLE FIBER HAVING IONICALLY BOUND HALIDESApril 2018June 2019Allow1310NoNo
15966098SULFUR-CONTAINING IMIDAZOLE FIBER HAVING IONICALLY BONDED HALIDESApril 2018June 2019Allow1310NoNo
15768383HOLLOW-STRUCTURE PLATEApril 2018October 2022Abandon5540YesNo
15950719CORED SOLDER WIRE WITH ROSIN FLUX AND THERMOSET MATERIALApril 2018January 2020Abandon2120NoNo
15925749MULTILAYER EXCHANGE SPRING RECORDING MEDIAMarch 2018June 2020Abandon2720YesNo
15760746HOUSINGMarch 2018June 2021Abandon3930YesNo
15758903TEARABLE TUBE FORMED FROM FLUORORESINMarch 2018April 2022Abandon4951NoNo
15915668CASING FOR FOOD PRODUCTSMarch 2018November 2020Abandon3220NoNo
15913093EXTRUSION COATED PAPER FOR FLEXIBLE PACKAGINGMarch 2018November 2020Abandon3220NoNo
15757732HOSE RUBBER COMPOSITION, HOSE LAMINATED BODY, AND HOSEMarch 2018March 2020Abandon2510NoNo
15904573CRUCIBLE FOR MELTING REACTIVE ALLOYSFebruary 2018September 2020Abandon3111NoNo
15737429METHOD OF MANUFACTURING SOFT MAGNETIC DUST CORE AND SOFT MAGNETIC DUST COREDecember 2017April 2021Abandon3921YesNo
15837770ALUMINUM ALLOY PARTICLE WITH A PERMANENT MAGNET COREDecember 2017April 2023Abandon6021YesYes
15836494CERAMIC ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOFDecember 2017September 2022Abandon5741NoYes
15808952FE-BASED NANOCRYSTALLINE ALLOY AND ELECTRONIC COMPONENT USING THE SAMENovember 2017February 2025Allow6061YesNo
15806630MAGNETIC PAPER PRODUCT CAPABLE OF BEING DIRECTLY PRINTEDNovember 2017June 2021Abandon4441NoNo
15793420MAGNETIC FLOOR SURFACEOctober 2017April 2020Allow3011NoNo
15567108PROCESS FOR CROSSLINKING POLYPROPYLENEOctober 2017February 2020Abandon2801NoNo
15729084STRETCHABLE CONDUCTIVE FIBER AND METHOD OF MANUFACTURING THE SAMEOctober 2017August 2021Abandon4641NoNo
15565050MAGNETIC RECORDING MEDIUMOctober 2017April 2025Allow6080NoNo
15723414MAGNETIC SHEET AND ELECTRONIC DEVICEOctober 2017December 2023Abandon6050YesNo
15722588LOW-SUBSTITUTED HYDROXYPROPYL CELLULOSE, PRODUCTION METHOD THEREOF, AND SOLID PREPARATIONOctober 2017August 2020Allow3511NoNo
15712359LAMINATED ELECTRONIC COMPONENTSeptember 2017November 2022Abandon6050YesNo
15709030APPARATUS AND METHOD FOR INCORPORATING HIGH-FLUX-DENSITY MAGNETIC MATERIALS IN ELECTROMAGNETIC DEVICESSeptember 2017June 2020Abandon3311NoNo
15656242SOFT MAGNETIC METAL DUST CORE AND REACTOR HAVING THEREOFJuly 2017March 2022Abandon5630YesNo
15628782LAMINATED STRUCTURES FOR POWER EFFICIENT ON-CHIP MAGNETIC INDUCTORSJune 2017August 2023Abandon6060YesNo
15536289COMPOSITE FIBERS AND MATRICES THEREOFJune 2017May 2021Abandon4721NoYes
15534002CONJUGATE FIBERS WITH ENCAPSULATED LIQUID CRYSTAL AND CONJUGATE FIBER AGGREGATEJune 2017August 2020Abandon3830YesYes
15603737MULTILAYER COATED MULTICOLOR YARN AND MANUFACTURING METHOD THEREOFMay 2017November 2019Abandon3001NoNo
15517075HIGH MELTING POINT RESIN FIBERS AND NONWOVEN FABRICApril 2017September 2020Abandon4241NoNo
15516712HYBRID REINFORCEMENT ASSEMBLIESApril 2017December 2020Abandon4441NoNo
15516716HYBRID LONG FIBER THERMOPLASTIC COMPOSITESApril 2017December 2020Abandon4421NoNo
15454399BIFUNCTIONAL FIBER FOR COMBINED SENSING AND HAPTIC FEEDBACKMarch 2017October 2020Abandon4321YesNo
15445614ELECTROCONDUCTIVE COATINGFebruary 2017July 2021Abandon5221YesYes
15395173COMPOSITE FIBER AND METHOD FOR FORMING THE SAMEDecember 2016January 2021Abandon4831YesNo
15395577MAGNETIC MATERIAL AND MAGNETIC COMPONENT EMPLOYING THE SAMEDecember 2016September 2022Abandon6051YesNo
15394457OLIGOMER, COMPOSITION AND COMPOSITE MATERIAL EMPLOYING THE SAMEDecember 2016August 2019Abandon3101NoNo
15319415Reinforcing Fiber Bundle and Method for Producing SameDecember 2016April 2020Abandon4021NoNo
15372665SENSOR FIBERS AND METHODS OF MANUFACTURING THE SAMEDecember 2016May 2019Abandon2921NoNo
15361125ALUMINUM-ALLOY ELECTRIC WIRE AND WIRE HARNESSNovember 2016September 2021Abandon5721NoYes
15312253TETHER FOR PERSONAL PROTECTIVE DEVICE, SUCH AS A HEARING PROTECTION DEVICENovember 2016December 2020Abandon4831NoNo
15349124CHARGING CABLE HAVING FLEXIBILITY AT LOW TEMPEATURE AND OIL RESISTANCENovember 2016August 2019Abandon3310NoNo
15343818GaAs/GaAs(1-x-y)SbxNy CORE-SHELL NANOWIRESNovember 2016September 2022Abandon6051YesNo
15291372TRACTION ELEMENT MADE OF FIBER REINFORCED PLASTICOctober 2016March 2022Allow6041YesNo
15287835MOLDED WIRE AND MOLDED CABLE, AND WIRE FOR MOLDED WIRE AND CABLE FOR MOLDED CABLEOctober 2016June 2022Allow6060YesNo
15301285HYDROPHILIZED CELLULOSE ACETATE TOW BAND, AND ABSORBENT MATERIAL PRODUCED USING SAMESeptember 2016October 2020Abandon4941YesNo
15110667CONNECTOR-EQUIPPED ELECTRICAL WIRE AND METHOD FOR MANUFACTURING SAMESeptember 2016March 2023Abandon6071YesNo
15300791MODIFIED CROSS-SECTION FIBERSeptember 2016February 2023Abandon6081YesNo
15122225COPPER ALLOY TWISTED WIRE, METHOD FOR MANUFACTURING SAME, AND ELECTRIC WIRE FOR AUTOMOBILEAugust 2016May 2019Abandon3320NoNo
15115298FIBER-REINFORCED MULTILAYERED PELLET, MOLDED ARTICLE MOLDED THEREFROM, AND METHOD OF PRODUCING FIBER-REINFORCED MULTILAYERED PELLETJuly 2016May 2019Allow3411YesNo
15220202INSULATED WIRE AND METHOD OF MANUFACTURING THE SAMEJuly 2016November 2018Abandon2801NoNo
15217782Lubricious Silicone Cable Jackets and Cable Assemblies Formed TherefromJuly 2016December 2018Abandon2910NoNo
15216632ELECTRICAL ACCESSORIES FOR POWER TRANSMISSION SYSTEMS AND METHODS FOR PREPARING SUCH ELECTRICAL ACCESSORIESJuly 2016May 2018Abandon2200NoNo
15213564COMPOSITE CARBON FIBERSJuly 2016July 2024Abandon6061NoNo
15110336PAN-BASED CARBON FIBER AND PRODUCTION METHOD THEREFORJuly 2016January 2020Abandon4321NoNo
15203648ANTI-BACTERIAL METALLO IONOMER POLYMER NANOCOMPOSITE FILAMENTS AND METHODS OF MAKING THE SAMEJuly 2016May 2019Allow3511NoNo
15035309HYBRID REINFORCEMENTMay 2016March 2020Abandon4721NoNo
15034445COLORED GLASS FIBER AND MANUFACTURING METHOD THEREFORMay 2016February 2020Abandon4541YesNo
15074036MAGNETO-DIELECTRIC SUBSTRATE, CIRCUIT MATERIAL, AND ASSEMBLY HAVING THE SAMEMarch 2016September 2023Abandon6061NoNo
14911522OPTICAL FIBER PREFORM AND METHOD FOR MANUFACTURING SUCH OPTICAL FIBER PREFORM FROM A PRIMARY PREFORMFebruary 2016April 2021Allow6041NoYes
14911176BIOPLASTICIZERS AND PLASTICIZED POLYMERIC COMPOSITIONSFebruary 2016November 2019Abandon4530NoNo
14910895ELASTIC MONOFILAMENTFebruary 2016July 2020Abandon5340YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CHAU, LISA N.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
33
Examiner Affirmed
25
(75.8%)
Examiner Reversed
8
(24.2%)
Reversal Percentile
37.9%
Lower than average

What This Means

With a 24.2% 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
69
Allowed After Appeal Filing
14
(20.3%)
Not Allowed After Appeal Filing
55
(79.7%)
Filing Benefit Percentile
27.7%
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, 20.3% 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 CHAU, LISA N - Prosecution Strategy Guide

Executive Summary

Examiner CHAU, LISA N works in Art Unit 1785 and has examined 433 patent applications in our dataset. With an allowance rate of 23.3%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 50 months.

Allowance Patterns

Examiner CHAU, LISA N's allowance rate of 23.3% places them in the 3% percentile among all USPTO examiners. This examiner is less likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by CHAU, LISA N receive 3.38 office actions before reaching final disposition. This places the examiner in the 90% percentile for office actions issued. This examiner issues more office actions than most examiners, which may indicate thorough examination or difficulty in reaching agreement with applicants.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHAU, LISA N is 50 months. This places the examiner in the 7% percentile for prosecution speed. Applications take longer to reach final disposition with this examiner compared to most others.

Interview Effectiveness

Conducting an examiner interview provides a +15.3% benefit to allowance rate for applications examined by CHAU, LISA N. This interview benefit is in the 54% 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, 6.1% of applications are subsequently allowed. This success rate is in the 3% percentile among all examiners. Strategic Insight: RCEs show lower effectiveness with this examiner compared to others. Consider whether a continuation application might be more strategic, especially if you need to add new matter or significantly broaden claims.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 10.0% of cases where such amendments are filed. This entry rate is in the 11% percentile among all examiners. Strategic Recommendation: This examiner rarely enters after-final amendments compared to other examiners. You should generally plan to file an RCE or appeal rather than relying on after-final amendment entry. Per MPEP § 714.12, primary examiners have discretion in entering after-final amendments, and this examiner exercises that discretion conservatively.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 20.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 28% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 38.9% of appeals filed. This is in the 7% percentile among all examiners. Of these withdrawals, 28.6% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). 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, 97.6% are granted (fully or in part). This grant rate is in the 90% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.2% of allowed cases (in the 52% 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 8% percentile). This examiner rarely issues Quayle actions compared to other examiners. Allowances typically 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:

  • Prepare for rigorous examination: With a below-average allowance rate, ensure your application has strong written description and enablement support. Consider filing a continuation if you need to add new matter.
  • Expect multiple rounds of prosecution: This examiner issues more office actions than average. Address potential issues proactively in your initial response and consider requesting an interview early in prosecution.
  • Plan for RCE after final rejection: This examiner rarely enters after-final amendments. Budget for an RCE in your prosecution strategy if you receive a final rejection.
  • Plan for extended prosecution: Applications take longer than average with this examiner. Factor this into your continuation strategy and client communications.

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.