USPTO Examiner LI CHANGQING - Art Unit 1793

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
17134735Method of Concentration of Fluid Milk using Renewable EnergyDecember 2020September 2022Allow2120NoNo
17101222SYSTEM AND METHOD FOR FOOD PROCESSINGNovember 2020October 2023Abandon3520NoNo
17057522USE OF HEXOSE OXIDASE AND/OR CELLOBIOSE OXIDASE FOR REDUCTION OF MAILLARD REACTIONNovember 2020November 2023Abandon3601NoNo
16953877COMPOSITION AND METHOD OF TREATING PLANTS AND PLANT PARTS WITH VOLATILE SPOILAGE ORGANISM CONTROLLING ACTIVESNovember 2020March 2024Abandon4020NoNo
16951073COMPOUND BEVERAGE CONTAINING CORN PEPTIDES AND PUERARIA ROOT EXTRACT AND PREPARATION METHOD THEREOFNovember 2020April 2024Abandon4101NoNo
17044430PROCESS FOR PREPARING A BOUILLON TABLETOctober 2020November 2022Abandon2601NoNo
17043782MONASCUS PURPUREUS AND USE THEREOFSeptember 2020February 2024Allow4140YesNo
17041714NOVEL USE OF SUBSTITUTED 2H-CHROMENS AND THEIR DERIVATIVESSeptember 2020February 2024Abandon4110NoNo
17029348FERMENTATION METHODS FOR PRODUCING STEVIOL GLYCOSIDE USING HIGH PH AND COMPOSITIONS OBTAINED THEREFROMSeptember 2020September 2024Abandon4840YesNo
17014504NUTRITIONAL COMPOSITIONS CONTAINING MILK-DERIVED PEPTIDES AND USES THEREOFSeptember 2020December 2022Allow2710YesNo
16992314Method for producing a reconstituted raw piece of meatAugust 2020March 2023Abandon3120NoNo
16992027RUMINAL PROTECTION OF LIPIDS, LIPID-BEARING MATERIALS, AND BIOACTIVE ALIMENTSAugust 2020January 2022Abandon1711NoNo
16932480DEUTERATED CAFFEINE AND USES THEREOFJuly 2020August 2022Abandon2560YesNo
16958002EDIBLE FILM AND RELATED USESJune 2020June 2023Abandon3611NoNo
16956674EXTRACTS AND THEIR USEJune 2020February 2023Abandon3201NoNo
16904530PROCESS FOR PRODUCING A CANNABIS INFUSED OLIVE OILJune 2020January 2023Abandon3120NoNo
16897791LIQUID DAIRY BLEND FOR CULINARY FOOD PRODUCTSJune 2020June 2024Allow4860YesNo
16770293METHOD FOR EXTRACTING WASABI EXTRACTJune 2020April 2023Abandon3420NoNo
16769378USE OF CELLOBIOSE OXIDASE FOR REDUCTION OF MAILLARD REACTIONJune 2020August 2023Abandon3920NoNo
16886219Product and method for stabilizing lemon juiceMay 2020October 2024Abandon5330NoNo
16886691SUPPLEMENT MATERIAL FOR USE IN PET FOODMay 2020January 2025Abandon5640NoYes
15931865PROCESS FOR PRODUCING A BIO-INACTVE AND SHELF STABLE BIOMASS MATTER DERIVED FROM BIOACTIVE BIOMASS FEEDSTOCKMay 2020March 2023Allow3420YesNo
16763702HYDROLYSED PROTEIN DEBITTERING COMPOSITION AND PRODUCT, PREPARATION, AND APPLICATION THEREOFMay 2020August 2024Abandon5151YesNo
16758248PROCESS FOR THE PRODUCTION OF A BOUILLON POWDER, A BOUILLON POWDER AND ITS USEApril 2020June 2022Allow2601YesNo
16754758THE COMPOUND SALT OF N,N-DIMETHYLGLYCINE AND AN ORGANIC ACID AND COMPOSITION AND USE THEREOFApril 2020July 2022Allow2710YesNo
16754769PROVIDING NUTRITION FOR AN ACTIVITYApril 2020August 2023Abandon4021NoNo
16753712STEVIOL GLYCOSIDE SOLUBILITY ENHANCERSApril 2020July 2023Abandon3921YesNo
16651662SPREADABLE FAT-CONTAINING FOOD PRODUCTSMarch 2020August 2022Allow2910YesNo
16815174Fish Attractants and Chum SystemsMarch 2020February 2023Abandon3520NoNo
16643384PROCESS FOR PRODUCING AN IMPROVED MESOPHILIC FERMENTED MILK PRODUCTFebruary 2020December 2022Abandon3411NoNo
16643302OILINESS/FATTINESS ENHANCER FOR FOODS, AND FOOD CONTAINING SAMEFebruary 2020October 2022Abandon3210NoNo
16642787STREPTOCOCCUS THERMOPHILUS (ST) CELL TO MAKE E.G. MOZZARELLA CHEESEFebruary 2020February 2023Allow3611YesNo
16641303SEASONING PRODUCTFebruary 2020March 2023Abandon3721YesNo
16641636FOOD PRODUCT AND ITS PROCESS OF PREPARATIONFebruary 2020January 2024Abandon4641NoNo
16637867'High' Flavoured Beverage Component, Use Thereof and Method of Preparing Such Beverage ComponentFebruary 2020February 2024Abandon4831NoNo
16784974COFFEE BEVERAGE COMPOSITION AND METHOD OF PRODUCING ITFebruary 2020May 2023Abandon3930NoNo
16776604METHOD FOR PRODUCING A RAW PIECE OF RECONSTITUTED MEAT AND A RAW PIECE OF RECONSTITUTED MEAT COMBINED ACCORDING TO THE METHODJanuary 2020January 2023Abandon3620NoNo
16752407DEUTERATED CAFFEINE AND USES THEREOFJanuary 2020May 2020Allow410YesNo
16627559RICE PROTEIN HYDROLYSATES WITH ANTI-INFLAMMATORY PROPERTIESDecember 2019April 2024Abandon5141NoNo
16729223AGROCHEMICAL-FREE SIRAITIA GROSVENORII EXTRACT, AND METHOD FOR PREPARING SAMEDecember 2019January 2023Abandon3720YesNo
16692814METHOD FOR PREPARING AND PRESERVING SANITIZED PRODUCTSNovember 2019February 2023Allow3980YesYes
16681158FLOATING FACILITY AND METHOD FOR MATURATION OF ALCOHOL SPIRITSNovember 2019August 2024Abandon5820NoYes
16672057POLYMER-BASED ORAL CANNABINOID AND/OR TERPENE FORMULATIONSNovember 2019October 2022Abandon3501NoNo
16497850MEAT ALTERNATIVE COMPRISING AQUEOUS GELLING COMPOSITIONSeptember 2019October 2021Abandon2521NoNo
16493508LIQUID NUTRITIONAL COMPOSITIONS CONTAINING OXIDIZABLE FISH OIL, ROSMARINIC ACID, AND FERRIC IRONSeptember 2019April 2023Allow4340NoYes
16490046COMPOSITION FOR CONTROLLING SUPERFICIAL SCALD IN POME FRUITAugust 2019November 2024Abandon6070YesNo
16484613DRIED HYDROGEL CO-GELAugust 2019May 2025Abandon6051YesNo
16478464NON-BLOOM COMESTIBLE PRODUCTJuly 2019March 2025Abandon6041YesYes
16477530SAVOURY CONCENTRATE COMPRISING INORGANIC SALT, FAT AND PSYLLIUM SEED HUSK GUMJuly 2019February 2021Abandon1911NoNo
16452316DEUTERATED CAFFEINE AND USES THEREOFJune 2019December 2019Allow610YesNo
16473140PICKERING EMULSION PREPARED USING PEANUT PROTEIN ISOLATE AND PREPARATION METHOD THEREOFJune 2019November 2022Allow4020NoNo
16346504FOOD PRODUCTApril 2019June 2022Abandon3701NoNo
16343136FOOD COMPOSITIONS CONTAINING VEGETABLE OIL AND MIXTURE WITH STABILISING PROPERTIESApril 2019October 2024Abandon6040NoNo
16358399Apparatus for Imparting Color to Food Material During the Decorating of FoodsMarch 2019November 2021Abandon3211NoNo
16297278Methods of Controlling the Rate of Ripening in Harvested ProduceMarch 2019November 2024Abandon6061YesYes
16323448LACTOBACILLUS-CONTAINING CHOCOLATE AND MANUFACTURING METHOD THEREFORFebruary 2019October 2022Abandon4541YesNo
16322456A Process for Prepared a Beverage or Beverage Component, Beverage or Beverage Component Prepared by Such Process, and Use of Brewer's Spent Grains for Preparing Such Beverage or Beverage ComponentJanuary 2019December 2022Abandon4611NoNo
16320965DRY EXPANDED FOOD PRODUCT MADE FROM PROTEIN, AND METHOD FOR THE PRODUCTION THEREOFJanuary 2019September 2022Abandon4331YesNo
16315060SOLUBLE RAPESEED PROTEIN ISOLATEJanuary 2019November 2022Allow4670YesYes
16238698GROUND MEAT REPLICASJanuary 2019March 2021Allow2640NoNo
16309273SAVOURY CONCENTRATE WITH MULBERRY FRUIT EXTRACTDecember 2018May 2023Abandon5321NoNo
16209794Methods of Controlling the Rate of Ripening in Harvested ProduceDecember 2018November 2024Abandon60101YesYes
16094906SHAPED SAVOURY CONCENTRATE AND PROCESS FOR THE PREPARATION THEREOFOctober 2018January 2023Abandon5141YesNo
16090559METHOD OF PRODUCING FRUIT AND VEGETABLE JUICE RICH IN SODOctober 2018June 2022Abandon4460YesNo
16089953CARBONATED BEVERAGE CONTAINING CARAMEL AND STEVIOL GLYCOSIDESeptember 2018November 2023Abandon6060YesYes
16086765CORN PROTEIN CONCENTRATE AND METHODS OF MANUFACTURING SAMESeptember 2018March 2025Abandon6090YesNo
16082202LIPID COMPOSITIONS AND USES THEREOFSeptember 2018October 2024Abandon6041NoNo
16043610BACILLUS MICROBIAL TERROIR FOR PATHOGEN CONTROL IN SWINEJuly 2018November 2022Allow5251YesNo
16069828PROCESS FOR PREPARING FISH BONE POWDERJuly 2018December 2023Allow6070YesNo
16024186HIGH-PROTEIN COMPOSITIONS AND METHODS OF THEIR MAKING AND USEJune 2018December 2024Abandon6060YesNo
16062362PROFLAVOUR DELIVERY PARTICLESJune 2018April 2020Abandon2261NoNo
16003312METHOD FOR THE PREPARATION OF PICKLED POTATO STRINGSJune 2018January 2021Abandon3110NoNo
15994429NATURAL PRESERVATIVE COMPOSITIONSMay 2018July 2023Abandon6041NoYes
15779978BEVERAGE THAT CONTAINS MICROBIAL CELLSMay 2018July 2022Abandon4941NoNo
15972916Stabilization of Monocalcium Phosphate With Non-Aluminum MaterialsMay 2018November 2021Abandon4240NoNo
15972610Brewing SystemMay 2018November 2020Abandon3010NoNo
15772459Soluble Fiber Liquid Beverage Concentrate and Method for Delivery of Soluble FiberApril 2018July 2024Abandon6041NoYes
15963511FISHING BAIT PREPARED FROM FARM MORTALITYApril 2018December 2023Abandon6061YesNo
15956380Animal Feed IngredientApril 2018April 2022Abandon4821NoYes
15942655METHODS AND COMPOSITIONS FOR WEIGHT MANAGEMENT AND FOR IMPROVING GLYCEMIC CONTROLApril 2018December 2022Abandon5640NoYes
15940443Cold Smoked Meat Product and Method of Making SameMarch 2018May 2022Allow5031YesYes
15763731FERMENTED FOOD COMPOSITION PRODUCTION METHODMarch 2018January 2021Abandon3311NoNo
15934711METHODS OF FEEDING ANIMALS FEED PRODUCTS CONTAINING DIRECT-FED MICROBIALSMarch 2018April 2025Abandon6070YesYes
15926461METHOD OF CONVERTING LACTOSE-CONTAINING DAIRY BY-PRODUCTS INTO MONOSACCHARIDESMarch 2018August 2023Abandon6040NoYes
15761281YEAST CELL WALL DERIVED FLAVOURMarch 2018November 2021Allow4441YesNo
15756797STEVIA-CONTAINING FOOD AND BEVERAGE COMPOSITIONSMarch 2018January 2022Abandon4731NoNo
15756493METHOD FOR PRODUCING MEAT CAPABLE OF REDUCING SATURATED FATTY ACID INTAKEFebruary 2018April 2020Abandon2611NoNo
15897058RUMINAL PROTECTION OF LIPIDS, LIPID-BEARING MATERIALS, AND BIOACTIVE ALIMENTSFebruary 2018October 2020Abandon3211NoNo
15893762Processes for the Enzymatic Treatment of UHT Sterilized Milks to Reduce Cooked Flavor, Sulfur Odor, and Brown ColorFebruary 2018January 2021Abandon3520NoNo
15751083Microbial CompositionFebruary 2018June 2022Abandon5341YesNo
15750542A SHAPED SAVOURY CONCENTRATE ARTICLEFebruary 2018March 2022Abandon5050YesNo
15887005Low Fat Peanut Butter-Like Product Made with Corn SyrupFebruary 2018August 2019Abandon1810NoNo
15749559READY-TO-DRINK BEVERAGES WITH IMPROVED TEXTURE BY CONTROLLED PROTEIN AGGREGATIONFebruary 2018June 2020Abandon2801NoNo
15885118HIGH FIBER, HIGH PROTEIN, LOW CARBOHYDRATE FLOUR, SWEETENED LIQUID, SWEETENERS, CEREALS, AND METHODS FOR PRODUCTION THEREOFJanuary 2018July 2022Allow5440YesNo
15748371VEGETABLE HEALTH DRINKJanuary 2018July 2022Abandon5441NoNo
15573486METHOD FOR PRODUCING A RAW PIECE OF RECONSTITUTED MEAT AND A RAW PIECE OF RECONSTITUTED MEAT COMBINED ACCORDING TO THE METHODJanuary 2018November 2020Abandon3611NoNo
15880175PSYLLIUM PET FOOD COMPOSITIONJanuary 2018September 2020Abandon3230NoNo
15878761GRANULATED FEED SUPPLEMENT AND METHODS FOR MAKING AND USINGJanuary 2018August 2024Abandon6061YesYes
15747181ALCOHOL-CONTAINING BEVERAGE WITH IMPROVED FLAVORJanuary 2018March 2023Abandon6070NoNo
15747312FAST-DISSOLVING, CO-CRYSTALLINE FORMS OF SODIUM CHLORIDEJanuary 2018January 2021Abandon3631YesNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
23
Examiner Affirmed
16
(69.6%)
Examiner Reversed
7
(30.4%)
Reversal Percentile
48.2%
Lower than average

What This Means

With a 30.4% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage 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
42
Allowed After Appeal Filing
8
(19.0%)
Not Allowed After Appeal Filing
34
(81.0%)
Filing Benefit Percentile
24.7%
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, 19.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

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 LI, CHANGQING - Prosecution Strategy Guide

Executive Summary

Examiner LI, CHANGQING works in Art Unit 1793 and has examined 195 patent applications in our dataset. With an allowance rate of 25.1%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 43 months.

Allowance Patterns

Examiner LI, CHANGQING's allowance rate of 25.1% places them in the 4% 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 LI, CHANGQING receive 3.50 office actions before reaching final disposition. This places the examiner in the 92% 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 LI, CHANGQING is 43 months. This places the examiner in the 17% 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 +33.9% benefit to allowance rate for applications examined by LI, CHANGQING. This interview benefit is in the 81% 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, 5.3% 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 10.4% of cases where such amendments are filed. This entry rate is in the 12% 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, 33.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 33% 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 39.5% of appeals filed. This is in the 7% percentile among all examiners. Of these withdrawals, 20.0% 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, 52.9% are granted (fully or in part). This grant rate is in the 50% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 7% percentile). This examiner rarely makes examiner's amendments compared to other examiners. You should expect to make all necessary claim amendments yourself through formal amendment practice.

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.
  • 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.
  • 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.