USPTO Examiner LEESER ERICH A - Art Unit 1622

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19204186AP2 ASSOCIATED KINASE 1 INHIBITORS AND USES THEREOFMay 2025January 2026Allow801YesNo
19195185SPIROMACROCYCLIC OREXIN 2 RECEPTOR AGONISTSApril 2025November 2025Allow711NoNo
19072501HETEROCYCLIC SUBSTITUTED PYRIMIDOPYRAN COMPOUND AND USE THEREOFMarch 2025November 2025Allow811NoNo
19009637TREM2 MODULATORSJanuary 2025May 2025Allow501YesNo
18910967NOVEL COMPOUNDSOctober 2024February 2026Allow1612NoNo
18905898METHOD OF TREATING HAIR LOSS DISORDERSOctober 2024March 2025Allow500YesNo
18750014METHODS OF TREATING GASTROINTESTINAL STROMAL TUMORSJune 2024March 2025Allow910NoNo
18750032METHODS OF TREATING GASTROINTESTINAL STROMAL TUMORSJune 2024April 2025Allow1010NoNo
18674233MIRDAMETINIB TREATMENTMay 2024September 2024Allow410YesNo
18674168MIRDAMETINIB TREATMENTMay 2024January 2025Allow810NoNo
18674104MIRDAMETINIB TREATMENTMay 2024June 2025Abandon1210NoNo
18601528COMPOUNDS AND METHODS FOR TREATMENT OF VIRAL INFECTIONSMarch 2024October 2024Allow701NoNo
18437335PRMT5 INHIBITORS AND METHODS OF USEFebruary 2024July 2024Allow500NoNo
18435939HYBRID CYCLIC LIBRARIES AND SCREENS THEREOFFebruary 2024November 2025Allow2120NoNo
18430205COMBINATION THERAPY COMPRISING JAK PATHWAY INHIBITOR AND ROCK INHIBITORFebruary 2024October 2025Allow2101NoNo
18430528TERTIARY ALCOHOLS AS PI3K-y INHIBITORSFebruary 2024August 2025Allow1910NoNo
184254663-(2-(6-METHOXYPYRIDIN-3-YL)-4,5-DIPHENYL-1H-IMIDAZOL-1-YL)-N,N-DIMETHYLPROPAN-1-AMINE AS AN ANTICANCER COMPOUNDJanuary 2024June 2025Abandon1620NoNo
184127586-AMINO-8,9-DI(4-METHOXYPHENYL)-2-OXO-3,9-DIHYDRO-2H-[1,3]THIAZOLO[5',4':5,6]PYRANO[2,3-B]PYRIDINE-7-CARBONITRILE AS ANTICANCER COMPOUNDJanuary 2024June 2025Abandon1720YesNo
18407744Method of Using MEK Inhibitor to Prevent Radiation Induced FibrosisJanuary 2024January 2026Abandon2401NoNo
18395741METHOD OF INHIBITING KINASE BY MESYLATE SALTS OF TRIAZOLOPYRAZINE DERIVATIVESDecember 2023September 2025Allow2100NoNo
18394447Compounds, Compositions and Methods of Treating or Preventing Acute Lung InjuryDecember 2023October 2025Allow2110NoNo
18394122PYRAZOLO-QUINAZOLINE DERIVATIVES, PROCESS FOR THEIR PREPARATION AND THEIR USE AS KINASE INHIBITORSDecember 2023November 2025Abandon2301NoNo
183947033-(2-(4-METHOXYPYRIDIN-3-YL)-4,5-DIPHENYL-1H-IMIDAZOL-1-YL)-N,N-DIMETHYLPROPAN-1-AMINE AS AN ANTI-CANCER COMPOUNDDecember 2023June 2025Abandon1720NoNo
18392493LUTEINIZING HORMONE-RELEASING HORMONE RECEPTOR (LHRH-R) CONJUGATES AND USES THEREOFDecember 2023November 2025Allow2311NoNo
18391420PHARMACOPHORE FOR TRAIL INDUCTIONDecember 2023January 2026Allow2521NoNo
18538067JAK1 SELECTIVE INHIBITORSDecember 2023July 2025Allow1901NoNo
18529311PYRIDO[3',4':4,5]PYRROLO[3,2-C]NAPHTHYRIDINE COMPOUNDS AS CK2 INHIBITORSDecember 2023January 2025Allow1311NoNo
18526380Substituted 4-Benzyl And 4-Benzoyl Piperidine DerivatesDecember 2023June 2025Allow1810NoNo
18526408Spiropiperidine DerivativesDecember 2023June 2025Allow1810NoNo
18518127MIRDAMETINIB TREATMENTNovember 2023May 2025Allow1711NoNo
18508257TRIAZOLOPYRIMIDINE COMPOUNDS AND THEIR USE IN TREATING CANCERNovember 2023August 2025Allow2111NoNo
18507616MEK INHIBITORS AND USES THEREOFNovember 2023July 2025Allow2001NoNo
18385742IMIDAZOPYRIDAZINE COMPOUNDS AND USES THEREOFOctober 2023July 2025Allow2001NoNo
18496034COMPOUNDS FOR TREATING SPINAL MUSCULAR ATROPHYOctober 2023November 2025Abandon2410NoNo
18382210SUBSTITUTED TRICYCLIC COMPOUNDS AS FGFR INHIBITORSOctober 2023September 2025Allow2300NoNo
18463865PYRAZOLOPYRIMIDINE COMPOUNDS AS ADENOSINE RECEPTOR ANTAGONISTSSeptember 2023September 2025Allow2411NoNo
18549309ALPHA-1062 FOR TREATING TRAUMATIC BRAIN INJURYSeptember 2023December 2025Allow2800YesNo
18459675IRAK4 DEGRADERS AND USES THEREOFSeptember 2023August 2025Allow2310NoNo
18237152COMPOUNDS AND METHODS FOR TREATMENT OF VIRAL INFECTIONSAugust 2023June 2025Allow2210NoNo
182332265-(2,5-DIFLUOROPHENYL)PYRROLIDIN-1-YL)-3-(1H-PYRAZOL-1-YL)PYRAZOLO [1,5-A]PYRIMIDINE DERIVATIVES AND RELATED COMPOUNDS AS TRK KINASE INHIBITORS FOR TREATING CANCERAugust 2023October 2025Allow2620NoNo
18276594METHODS FOR TREATING COVID-19 WITH SEPIAPTERINAugust 2023March 2026Allow3110NoNo
18225966THERAPEUTIC COMPOUNDSJuly 2023June 2025Allow2310NoNo
18351278COMBINATION THERAPY COMPRISING AN ALK2 INHIBITOR AND A JAK2 INHIBITORJuly 2023October 2025Allow2701NoNo
18260472APPLICATION OF PYRIDO[1,2-A]PYRIMIDINONE ANALOGJuly 2023February 2026Allow3210NoNo
18269193TETRAHYDROTHIENOPYRIMIDINESULFONAMIDE COMPOUNDSJune 2023February 2026Allow3200NoNo
18334976SOLID STATE FORMS OF SUBSTITUTED PYRAZOLOPYRIMIDINES AND USES THEREOFJune 2023November 2025Abandon2910NoNo
18204149Methods and Compositions for Treating Melanoma and Non-Melanoma Skin CancersMay 2023May 2025Abandon2401NoNo
18321330REDUCTION OF THE INCIDENCE OR RECURRENCE OF BREAST CANCER IN POSTMENOPAUSAL WOMEN TREATED WITH INTRAVAGINAL SEX STEROID PRECURSORMay 2023October 2025Abandon2901NoNo
18320805WNT SIGNALING PATHWAY INHIBITORS FOR TREATMENTS OF DISEASEMay 2023March 2025Allow2211NoNo
18319509QUINAZOLINE DERIVATIVES AS ANTITUMOR AGENTSMay 2023October 2025Allow2902YesNo
18320111INHIBITORS OF THE MENIN-MLL INTERACTIONMay 2023October 2025Abandon2911NoNo
18196357SPIRO AROMATIC RING COMPOUND AND USE THEREOFMay 2023June 2025Allow2511NoNo
183149135-MEMBERED AZA-HETEROCYCLIC CONTAINING DELTA-OPIOID RECEPTOR MODULATING COMPOUNDS, METHODS OF USING AND MAKING THE SAMEMay 2023May 2025Abandon2501NoNo
18143765CRYSTALLINE (R)-5-CARBAMOYLPYRIDIN-3-YL-2-METHYL-4-(3-(TRIFLUOROMETHOXY)BENZYL)PIPERAZINE-1-CARBOXYLATE, COMPOSITIONS AND METHODS OF USE THEREOFMay 2023May 2025Allow2410NoNo
18311646Small Molecule Inhibitors of KRAS G12C MutantMay 2023December 2024Allow2001YesNo
18311639Small Molecule Inhibitors of KRAS G12C MutantMay 2023December 2024Allow2001YesNo
18140730MODULATORS OF METHYL MODIFYING ENZYMES, COMPOSITIONS AND USES THEREOFApril 2023January 2025Allow2110NoNo
18139859COMBINATION THERAPY INVOLVING DIARYL MACROCYCLIC COMPOUNDSApril 2023October 2025Abandon2911YesNo
18307119[1,2,4]TRIAZOLO[1,5-A]PYRIDINYL SUBSTITUTED INDOLE COMPOUNDSApril 2023October 2025Allow2911NoNo
18135607COMPOUNDS AND COMPOSITIONS FOR IMMUNOTHERAPYApril 2023May 2025Abandon2501NoNo
18134843METALLOENZYME INHIBITORS FOR TREATING CANCERS, ALZHEIMER'S DISEASE, HEMOCHROMATOSIS, AND OTHER DISORDERSApril 2023February 2025Allow2201YesNo
18131226PYRIDINE, PYRAZINE, AND TRIAZINE COMPOUNDS AS ALLOSTERIC SHP2 INHIBITORSApril 2023April 2025Abandon2501NoNo
18027049FUSED TRICYCLIC DERIVATIVE AND PHARMACEUTICAL APPLICATION THEREOFMarch 2023December 2025Allow3300YesNo
18041864TETRAHYDROQUINAZOLINE DERIVATIVES AS SELECTIVE CYTOTOXIC AGENTSFebruary 2023December 2025Allow3400NoNo
18169408BRIDGED BICYCLIC COMPOUNDS AS BTK INHIBITORSFebruary 2023January 2026Allow3511NoNo
18107774PHARMACEUTICAL COMPOSITION CONTAINING PALBOCICLIB AND LETROZOLEFebruary 2023October 2025Abandon3311NoNo
18091790PYRIMIDINE COMPOUNDDecember 2022October 2025Abandon3411NoNo
18091653SELECTIVE SULFONATION OF BENZODIAZEPINE DERIVATIVESDecember 2022July 2025Abandon3110YesNo
18088045DIHYDROINDOLIZINONE DERIVATIVEDecember 2022March 2025Abandon2701NoNo
18085018LANTHIONINE SYNTHETASE C-LIKE 2-BASED THERAPEUTICSDecember 2022August 2025Allow3211NoNo
18011734HETEROCYCLIC DERIVATIVES, PHARMACEUTICAL COMPOSITIONS AND THEIR USE IN THE TREATMENT, AMELIORATION OR PREVENTION OF FIBROTIC DISEASEDecember 2022February 2026Allow3801NoNo
18062295ACID ADDITION SALTS OF PIPERAZINE DERIVATIVESDecember 2022January 2025Allow2501YesNo
18061467TOPICAL FORMULATIONS OF RUXOLITINIB WITH AN ORGANIC AMINE PH ADJUSTING AGENT FOR TREATMENT OF SKIN DISEASESDecember 2022January 2026Allow3811YesNo
180607963-hydroxy-N-(3-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)phenyl)pyrrolidine-1-carboxamide DerivativesDecember 2022February 2025Abandon2610NoNo
18070993THERAPEUTIC COMPOUNDSNovember 2022October 2025Allow3501YesNo
17998827FUSED AZA-HETEROCYCLIC AMIDE COMPOUND AND USE THEREOFNovember 2022January 2026Allow3801NoNo
17924537USE OF AMINOACETONITRILE COMPOUNDS FOR THE TREATMENT OF INFECTION AND DISEASENovember 2022September 2024Allow2211YesNo
17938502SERINE THREONINE KINASE (AKT) DEGRADATION / DISRUPTION COMPOUNDS AND METHODS OF USEOctober 2022March 2026Abandon4112NoNo
17959799COMPOUNDS AND THEIR METHODS OF USEOctober 2022February 2025Abandon2801NoNo
17907707Methods of Treating Coronavirus Disease 2019September 2022March 2026Abandon4101NoNo
17956435ANTI-WOLBACHIA PYRIDO[2,3-d]PYRIMIDINE COMPOUNDSSeptember 2022October 2025Allow3621NoNo
17914414N-CYANOPYRROLIDINES WITH ACTIVITY AS USP30 INHIBITORSSeptember 2022July 2025Allow3400NoNo
179495952-Oxo-Thiazole Derivatives as A2A Inhibitors and Compounds for Use in the Treatment of CancersSeptember 2022September 2025Abandon3611NoNo
17946181HETEROCYCLIC RIP1 KINASE INHIBITORSSeptember 2022January 2025Allow2811NoNo
17944151Quinazoline Compounds, Preparation Method, Use, and Pharmaceutical Composition ThereofSeptember 2022August 2025Allow3521YesNo
17944149Quinazoline Compounds, Preparation Method, Use, and Pharmaceutical Composition ThereofSeptember 2022August 2025Allow3521YesNo
17941156PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING RHEUMATOID ARTHRITIS AND HEALTH FUNCTIONAL FOODSeptember 2022March 2026Allow4211NoNo
17910331USE OF PYRROLOPYRIMIDINE COMPOUND FOR TREATING HEMOPHAGOCYTIC SYNDROMESeptember 2022July 2025Allow3400YesNo
17908296ELASTASE INHIBITOR PRODRUG AND USE THEREOFAugust 2022June 2025Allow3300YesNo
17822871N-PYRIDINYL ACETAMIDE DERIVATIVES AS WNT SIGNALLING PATHWAY INHIBITORSAugust 2022June 2025Abandon3411NoNo
17867229NON BRAIN PENETRANT A2A INHIBITORS AND METHODS FOR USE IN THE TREATMENT OF CANCERSJuly 2022April 2025Abandon3301NoNo
17863236PYRIDINIUM SALT AND PEST CONTROL AGENTJuly 2022April 2025Abandon3401NoNo
17861023Compounds for the Prevention and Treatment of Medical Disorders and Uses ThereofJuly 2022March 2025Allow3311YesNo
17853904SUBSTITUTED BENZYL-TRIAZOLE COMPOUNDS FOR CBL-B INHIBITION, AND FURTHER USES THEREOFJune 2022July 2024Allow2411NoNo
17788698SUBSTITUTED HYDROXYSTILBENE COMPOUNDS AND DERIVATIVES SYNTHESIS AND USES THEREOFJune 2022August 2025Allow3811YesNo
17839215G1T38 SUPERIOR DOSAGE REGIMESJune 2022March 2025Allow3311NoNo
17784551THIENOPYRIMIDINE DERIVATIVES AS LPA RECEPTOR 2 INHIBITORSJune 2022August 2025Allow3810NoNo
17836255ANTIBACTERIAL COMPOUNDSJune 2022February 2025Allow3211NoNo
17832224HETEROARYLAMINOPYRIMIDINE AMIDE AUTOPHAGY INHIBITORS AND METHODS OF USE THEREOFJune 2022July 2025Allow3711NoNo
17781167FLUORINE-CONTAINING HETEROCYCLIC DERIVATIVES WITH MACROCYCLIC STRUCTURE AND USE THEREOFMay 2022June 2025Allow3600YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LEESER, ERICH A.

Strategic Value of Filing an Appeal

Total Appeal Filings
12
Allowed After Appeal Filing
3
(25.0%)
Not Allowed After Appeal Filing
9
(75.0%)
Filing Benefit Percentile
33.6%
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, 25.0% 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

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

Examiner LEESER, ERICH A - Prosecution Strategy Guide

Executive Summary

Examiner LEESER, ERICH A works in Art Unit 1622 and has examined 677 patent applications in our dataset. With an allowance rate of 82.1%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 26 months.

Allowance Patterns

Examiner LEESER, ERICH A's allowance rate of 82.1% places them in the 54% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by LEESER, ERICH A receive 1.08 office actions before reaching final disposition. This places the examiner in the 11% 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 LEESER, ERICH A is 26 months. This places the examiner in the 75% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +19.2% benefit to allowance rate for applications examined by LEESER, ERICH A. This interview benefit is in the 62% 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, 44.9% of applications are subsequently allowed. This success rate is in the 95% percentile among all examiners. Strategic Insight: RCEs are highly effective with this examiner compared to others. If you receive a final rejection, filing an RCE with substantive amendments or arguments has a strong likelihood of success.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 69.7% of cases where such amendments are filed. This entry rate is in the 92% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 0.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 0% percentile among all examiners. Note: Pre-appeal conferences show limited success with this examiner compared to others. While still worth considering, be prepared to proceed with a full appeal brief if the PAC does not result in favorable action.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 100.0% of appeals filed. This is in the 86% percentile among all examiners. Of these withdrawals, 83.3% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner frequently reconsiders rejections during the appeal process compared to other examiners. Per MPEP § 1207.01, all appeals must go through a mandatory appeal conference. Filing a Notice of Appeal may prompt favorable reconsideration even before you file an Appeal Brief.

Petition Practice

When applicants file petitions regarding this examiner's actions, 41.1% are granted (fully or in part). This grant rate is in the 32% 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 12.3% of allowed cases (in the 95% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 5.0% of allowed cases (in the 80% 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:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • RCEs are effective: This examiner has a high allowance rate after RCE compared to others. If you receive a final rejection and have substantive amendments or arguments, an RCE is likely to be successful.
  • Appeal filing as negotiation tool: This examiner frequently reconsiders rejections during the appeal process. Filing a Notice of Appeal may prompt favorable reconsideration during the mandatory appeal conference.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

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.