USPTO Examiner KASSA TIGABU - Art Unit 1619

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19170092TRIPTOLIDE FORMULATIONSApril 2025January 2026Allow1011NoNo
19169843USE OF VARENICLINE FOR TREATING OCULAR CONDITIONSApril 2025February 2026Allow1021NoNo
18895498PHARMACEUTICAL COMPOSITIONS OF CABOTEGRAVIRSeptember 2024September 2025Abandon1221NoNo
18423908DRY EYE TREATMENTSJanuary 2024August 2025Abandon1801NoNo
18400069PHARMACEUTICAL FORMULATIONS OF NAPROXEN FOR SOFT GEL ENCAPSULATION AND COMBINATIONS THEREOFDecember 2023December 2025Allow2420NoNo
18541570INTRAOCULAR PRESSURE REDUCTION WITH INTRACAMERAL BIMATOPROST IMPLANTSDecember 2023December 2025Abandon2401NoNo
18541995LONG-TERM STABLE LIVE FECAL MICROBIOTA COMPOSITIONDecember 2023August 2025Allow2021YesNo
18503232Combination and Uses and Treatments ThereofNovember 2023April 2025Abandon1810NoNo
18370106INTERPENETRATING POLYMER NETWORK HYDROGELSeptember 2023October 2025Abandon2511NoNo
18236278COMPOSITION FOR PREVENTING ADHESION OF AIR-BORNE FINE PARTICLESAugust 2023April 2025Abandon2010NoNo
18355618MODIFIED RELEASE FORMULATIONJuly 2023June 2025Abandon2341NoNo
18255673COMPRESSED TABLETS COMPRISING HMOJune 2023January 2026Abandon3210NoNo
18144859TISSUE ADHESIVE MEMBRANE AND PREPARATION METHOD THEREOFMay 2023June 2024Allow1421YesNo
18307378ERODIBLE ANHYDROUS POLYETHYLENE OXIDE FILMApril 2023April 2025Abandon2310NoNo
18125562COMPOSITIONS AND USE OF VARENICLINE FOR TREATING DRY EYEMarch 2023January 2024Allow911YesNo
18125551COMPOSITIONS AND USE OF VARENICLINE FOR TREATING DRY EYEMarch 2023January 2024Allow911YesNo
18125517COMPOSITIONS AND USE OF VARENICLINE FOR TREATING DRY EYEMarch 2023January 2024Allow911YesNo
18170634Antiviral Resilient FlooringFebruary 2023December 2025Abandon3401NoNo
18019582SOLID DOSAGE FORMS OF PALBOCICLIBFebruary 2023December 2025Abandon3410NoNo
18098473Biodegradable, Antioxidant, Thermally Responsive Injectable Hydrogel and Uses ThereforJanuary 2023October 2025Allow3311YesNo
18095488INJECTABLE PREFORMED MACROSCOPIC 3-DIMENSIONAL SCAFFOLDS FOR MINIMALLY INVASIVE ADMINISTRATIONJanuary 2023August 2025Abandon3101NoNo
17960002ULTRAFINE NANOPARTICLES COMPRISING A FUNCTIONALIZED POLYORGANOSILOXANE MATRIX AND INCLUDING METAL COMPLEXES; METHOD FOR OBTAINING SAME AND USES THEREOF IN MEDICAL IMAGING AND/OR THERAPYOctober 2022September 2025Allow3511NoNo
17945328METHODS OF USING ACTIVIN RECEPTOR TYPE IIB VARIANTSSeptember 2022June 2025Allow3300YesNo
17942389HEAVY METAL-FREE CALCIUM HYDROXIDE-BASED ACTIVE SUBSTANCESeptember 2022May 2025Abandon3211NoNo
17900616ORAL THIN FILM OF POLYVINYL ALCOHOL AND POLYVINYL ALCOHOL-POLYETHYLENE GLYCOL GRAFT COPOLYMERAugust 2022February 2024Allow1721YesNo
17895681METHOD OF PREPARING A THIN FILM COMPOSITE LAYERAugust 2022November 2025Abandon3901NoNo
17801440SOLID PREPARATIONAugust 2022September 2025Abandon3710NoNo
17890947SKIN CARE FORMULATION CONTAINING SILVER NANOPARTICLESAugust 2022September 2024Allow2520YesNo
17883982POTASSIUM HYDROGEN SALTS OF ALKYLHYDROXAMATES AND COMPOSITIONS COMPRISING THE SAMEAugust 2022February 2024Allow1821YesNo
17798285CD137 BINDING MOLECULES AND USES THEREOFAugust 2022May 2025Allow3400YesNo
17796365DICLOFENAC SODIUM-CONTAINING ADHESIVE PATCHJuly 2022September 2025Abandon3810NoNo
17824420TISSUE MATRICES WITH CONTROLLED POROSITY OR MECHANICAL PROPERTIESMay 2022April 2025Abandon3411NoNo
17748566TELODENDRIMERS WITH RIBOFLAVIN MOIETIES AND NANOCARRIERS AND METHODS OF MAKING AND USING SAMEMay 2022April 2025Abandon3511NoNo
17719529COMPOSITIONS AND METHODS FOR DELIVERING DRUGS TO A VESSEL WALLApril 2022November 2024Abandon3201NoNo
17708552PARTICULATE SUBSTANCES COMPRISING CERAMIC PARTICLES FOR DELIVERY OF BIOMOLECULESMarch 2022February 2025Abandon3401NoNo
17705627NANOFIBROUS MAT CONTAINING CERAMIC PARTICLES WITH RELEASABLE DOPANTMarch 2022November 2024Abandon3210NoNo
17685732Depilatory Compositions Comprising AminoalkylpropanolMarch 2022April 2025Allow3721YesNo
17684219INTRAOCULAR PRESSURE REDUCTION WITH INTRACAMERAL BIMATOPROST IMPLANTSMarch 2022December 2023Abandon2210NoNo
17591333DICLOFENAC SACHET COMPOSITIONFebruary 2022June 2025Abandon4011NoNo
17649464METHODS AND COMPOSITIONS FOR INHIBITING GLYOXALASE 1 (GLO1)January 2022August 2025Allow4311YesNo
17583964TOPICAL ANTISEPTIC SYSTEMJanuary 2022February 2025Allow3730NoYes
17648380PREPARATION METHOD OF SUSTAINED-RELEASE MICROPARTICLESJanuary 2022December 2025Abandon4721YesNo
17561885DUAL-RATE RELEASE FORMULATION WITH HIGH DRUG LOADINGDecember 2021April 2025Abandon3911NoNo
17551703Foam Formulations Containing at Least One TriterpenoidDecember 2021December 2023Abandon2410NoNo
17543505COMPOSITIONS AND USE OF VARENICLINE FOR TREATING DRY EYEDecember 2021December 2023Allow2510YesNo
17539188Cosmetic Cleansing PowderNovember 2021June 2025Abandon4241NoNo
17539148Powder System For The Care Of HairNovember 2021June 2025Abandon4341NoNo
17535000BIMATOPROST OCULAR SILICONE INSERTS AND METHODS OF USE THEREOFNovember 2021December 2023Abandon2510NoNo
17522200ORAL THIN FILMNovember 2021November 2023Abandon2400NoNo
17609525NEW FORMULATIONS OF MICROORGANISMSNovember 2021April 2025Abandon4122NoNo
17609062TOPICAL COMPOSITION FOR BALANCING MICROBIOTA OF SKINNovember 2021February 2025Abandon3912NoNo
17513966POLYMORPHIC MIXTURE OF RIFAXIMIN AND ITS USE FOR THE PREPARATION OF SOLID FORMULATIONSOctober 2021July 2024Abandon3310NoNo
17501641Tamper Resistant Immediate Release FormulationsOctober 2021May 2024Allow3101YesNo
17498027PROCESS OF REWORKING A CRYSTALLINE FORM OF A GLYCINE TRANSPORT INHIBITOROctober 2021December 2024Allow3812NoNo
17467705GRAPHENE-BASED MULTIFUNCTIONAL COSMETIC COMPOSITIONSSeptember 2021August 2024Allow3621YesNo
17409669COMPOSITIONS AND METHODS FOR REDUCING THE TRANSMISSIVITY OF ILLNESSES USING AN ORAL DELIVERY SYSTEMAugust 2021April 2024Abandon3220NoNo
17404128MICROSPHERE FORMULATIONS COMPRISING KETAMINE AND METHODS FOR MAKING AND USING THE SAMEAugust 2021December 2024Allow4021YesNo
17389612ORALLY DISINTEGRATING COMPOSITIONSJuly 2021March 2024Allow3202YesNo
17347915VISCOELASTIC HYDROGELS WITH FAST STRESS RELAXATIONJune 2021June 2023Allow2400YesNo
17303795PUTRESCINE SLOW-RELEASE TOPICAL FORMULATIONSJune 2021March 2024Abandon3311NoNo
17328865RADIATION/CHEMOTHERAPY SENSITIZER TO BE USED FOR INTRATUMORAL LOCAL INJECTION AND FOR CONTROLLED RELEASE OF HYDROGEN PEROXIDE WITH HYDROGEL AS CARRIERMay 2021June 2024Allow3620NoNo
17230063METHODS FOR APPLYING A BIOACTIVE COATING ONTO A SURFACE OF AN IMPLANTApril 2021October 2023Abandon3010NoNo
17200454TOPICAL FORMULATIONS COMPRISING POLYOXYL LIPID OR FATTY ACID AND POLYALKOXYLATED ALCOHOL, AND USES THEREOFMarch 2021March 2024Allow3621YesNo
17275099HIGH PERFORMANCE EXCIPIENT COMPRISING CO-PROCESSED MICROCRYSTALLINE CELLULOSE AND SURFACE-REACTED CALCIUM CARBONATEMarch 2021June 2024Allow4021YesNo
17267323ABUSE DETERRENT PHARMACEUTICAL FORMULATIONSFebruary 2021March 2023Abandon2501NoNo
17169992L-PRF MESH REPAIR FOR INGUINAL HERNIAFebruary 2021December 2024Abandon4612NoNo
17158843POLYMORPHIC MIXTURE OF RIFAXIMIN AND ITS USE FOR THE PREPARATION OF SOLID FORMULATIONSJanuary 2021March 2023Allow2611NoNo
17159025SYSTEMS AND METHODS FOR PRINTING ON A CONTACT LENSJanuary 2021December 2023Allow3511YesNo
17157047STABLE MULTIPARTICULATE PHARMACEUTICAL COMPOSITION OF ROSUVASTATINJanuary 2021September 2025Allow5651YesYes
17155128COMPOSITION FOR WASHING AND CONDITIONING THE HAIRJanuary 2021February 2025Allow4931NoNo
17261863POLYHYDROXYL-CONTAINING POLYMER, PREPARATION METHOD THEREFOR AND USE THEREOFJanuary 2021April 2025Abandon5022NoNo
17260815COMPOSITION FOR PREVENTING ADHESION OF AIR-BORNE FINE PARTICLESJanuary 2021November 2023Abandon3420NoNo
17260291Process for Preparing Rapidly or Very Rapidly Dissolving Tablets Comprising Freely Soluble APIJanuary 2021May 2024Abandon4021NoNo
17253517Enzymes Entrapped in Organopolysiloxane Matrix for Treating Intestinal DiseasesDecember 2020March 2025Allow5121YesNo
16973530DELAMANID-CONTAINING COMPOSITIONDecember 2020January 2025Abandon5040YesYes
17104240HAIR TREATMENT COMPOSITIONS, KITS, AND METHODS OF USENovember 2020February 2024Allow3821YesNo
17074152ANTIOXIDANT COMPLEX AND COMPOSITION FOR FORMING SAMEOctober 2020June 2024Abandon4411NoNo
16948951BEVERAGE UNIT AND METHOD TO PROVIDE THE BEVERAGE UNITOctober 2020September 2025Allow6061YesNo
17044599GRANULATION COMPOSITION FORMED FROM CORE PARTICLES, COATING PARTICLES AND A BINDEROctober 2020September 2025Allow6041YesYes
17041635LENALIDOMIDE GASTRO-RETENTIVE SUSTAINED-RELEASE TABLET AND PREPARATION METHOD THEREOFSeptember 2020November 2024Allow5041YesNo
16978693PICOLINAMIDES AS FUNGICIDESSeptember 2020October 2024Abandon4922YesNo
16983232SHEET FOR COVERING WOUND, AND METHOD FOR COVERING WOUNDAugust 2020May 2025Abandon5741NoNo
16932470OPIOID RECEPTOR MODULATOR DOSAGE FORMULATIONSJuly 2020February 2022Abandon1911NoNo
16918538BIMODAL RELEASE ONDANSETRON TABLETS AND METHODS OF TREATING NAUSEA AND VOMITINGJuly 2020September 2022Abandon2711NoNo
16916421FORMULATIONS OF RIFAXIMIN AND USES THEREOFJune 2020May 2023Abandon3511NoNo
16772273NOVEL TERPOLYMERS AND THEIR USE IN PHARMACEUTICAL DOSAGE FORMSJune 2020February 2024Allow4421NoNo
16898071MODIFIED RELEASE FORMULATION FOR (-)-(3AR,4S,7AR)-4-HYDROXY-4-M-TOLYLETHYNYL-OCTAHYDRO-INDOLE-1-CARBOXYLIC ACID METHYL ESTERJune 2020February 2026Allow6031YesYes
16841125IMMOBILISING BIOLOGICAL ENTITIESApril 2020May 2023Abandon3701NoNo
16753790METHOD OF PRODUCTION OF A BRANCHED ORGANOSILICONE POLYMEROUS POLYNUCLEAR ADSORBENT OF HIGH MOLECULAR TOXINS AND THIS ADSORBENTApril 2020June 2024Abandon5021NoNo
16833606METHODS AND COMPOSITIONS FOR WHITENING TEETHMarch 2020March 2023Abandon3510NoNo
16830904BEVERAGES FOR LOWERING BLOOD PRESSUREMarch 2020April 2022Abandon2511YesNo
16646336METHOD FOR PREPARING A SOLID DOSAGE FORM COMPRISING ANTIBODIES BY WET GRANULATION, EXTRUSION AND SPHERONIZATIONMarch 2020May 2025Allow6021YesYes
16645529A Novel Green Micro-Emulsion for Controlling Fungal Wilt DiseasesMarch 2020April 2022Abandon2502NoNo
16797189COMPOSITIONS AND METHODS FOR DELIVERING DRUGS TO A VESSEL WALLFebruary 2020December 2021Allow2221NoNo
16640594ANHYDROUS ANTIPERSPIRANT AEROSOL COMPOSITIONFebruary 2020March 2024Allow4961YesYes
16637219APOPTOSIS-MIMICKING STRUCTURES FOR INDUCING TISSUE REGENERATIONFebruary 2020October 2025Allow6041YesNo
16751521Solid Pharmaceutical Compositions Of Androgen Receptor AntagonistsJanuary 2020August 2022Abandon3121NoNo
16630219Method of Increasing Epithelial Permeability Using NanoparticlesJanuary 2020February 2025Abandon6051YesNo
16735009Tellurium Nanowires with Anticancer Properties Synthesized by Green ChemistryJanuary 2020December 2023Allow4721YesYes
16733360COMPOSITIONS AND REAGENTS FOR ION BEAM IMAGINGJanuary 2020April 2025Abandon6021NoNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
46
Examiner Affirmed
25
(54.3%)
Examiner Reversed
21
(45.7%)
Reversal Percentile
68.2%
Higher than average

What This Means

With a 45.7% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
170
Allowed After Appeal Filing
42
(24.7%)
Not Allowed After Appeal Filing
128
(75.3%)
Filing Benefit Percentile
33.5%
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, 24.7% 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 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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner KASSA, TIGABU - Prosecution Strategy Guide

Executive Summary

Examiner KASSA, TIGABU works in Art Unit 1619 and has examined 760 patent applications in our dataset. With an allowance rate of 34.7%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 44 months.

Allowance Patterns

Examiner KASSA, TIGABU's allowance rate of 34.7% places them in the 5% 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 KASSA, TIGABU receive 2.93 office actions before reaching final disposition. This places the examiner in the 85% 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 KASSA, TIGABU is 44 months. This places the examiner in the 14% 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 +22.6% benefit to allowance rate for applications examined by KASSA, TIGABU. This interview benefit is in the 68% 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, 9.7% of applications are subsequently allowed. This success rate is in the 5% 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 23.4% of cases where such amendments are filed. This entry rate is in the 31% 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, 59.5% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 50% 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 63.2% of appeals filed. This is in the 42% percentile among all examiners. Of these withdrawals, 44.3% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows below-average willingness to reconsider rejections during appeals. Be prepared to fully prosecute appeals if filed.

Petition Practice

When applicants file petitions regarding this examiner's actions, 64.7% are granted (fully or in part). This grant rate is in the 70% 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 0.8% of allowed cases (in the 65% 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 0.8% of allowed cases (in the 58% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).

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 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.