USPTO Examiner NORTHINGTON DAVIS ZINNA - Art Unit 1625

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
17255600TRIAZOLE GLYCOLATE OXIDASE INHIBITORSDecember 2020March 2022Allow1501YesNo
17253342METHODS AND COMPOSITIONS FOR INHIBITION OF DIHYDROOROTATE DEHYDROGENASEDecember 2020September 2021Allow900YesNo
17039001BIOCATALYTIC SYNTHESIS OF CRYPTOPHYCIN ANTICANCER AGENTSSeptember 2020August 2022Allow2221YesNo
17043593N-HETEROCYCLIC FIVE-MEMBERED RING-CONTAINING CAPSID PROTEIN ASSEMBLY INHIBITOR, PHARMACEUTICAL COMPOSITION THEREOF, AND USE THEREOFSeptember 2020May 2022Allow2011YesNo
17025644PROTEIN TYROSINE PHOSPHATASE INHIBITORS AND METHODS OF USE THEREOFSeptember 2020November 2020Allow200NoNo
16994378WATER-BASED EXTRACTION AND PURIFICATION PROCESSES FOR CANNABINOID ACIDSAugust 2020February 2023Allow3010YesNo
16991190NOVEL DERIVATIVE OF BETA-APOPICROPODOPHYLLIN AND METHOD OF PREPARING THEREOFAugust 2020June 2022Allow2210NoNo
16989304ABIRATERONE PRODRUGSAugust 2020August 2022Allow2500YesNo
16987721PRODRUGS OF KALLIKREIN INHIBITORSAugust 2020November 2022Allow2710YesNo
16985879MORPHINAN DERIVATIVES AND USE THEREOFAugust 2020February 2023Abandon3110YesNo
16984152MODIFIED AMINO ACIDSAugust 2020August 2022Allow2400YesNo
16965790Method for Isolation of CytisineJuly 2020August 2022Allow2500YesNo
16940430PERFLUOROPYRIDINE DERIVED AROMATIC MONOMERS AND PROCESSES OF MAKING AND USING SAMEJuly 2020March 2021Allow710YesNo
16934534ZWITTERIONIC CATALYSTS FOR (TRANS)ESTERIFICATION: APPLICATION IN FLUOROINDOLE-DERIVATIVES AND BIODIESEL SYNTHESISJuly 2020October 2022Allow2701YesNo
16963488Solid Forms of FasoracetamJuly 2020October 2022Allow2711NoNo
16929694SYNTHETIC METHODS FOR PREPARATION OF (S)-(2R,3R,11BR)-3-ISOBUTYL-9,10-DIMETHOXY-2,3,4,6,7,11B-HEXAHYDRO-1H-PYRIDO[2,1,-A]ISOQUINOLIN-2-YL 2-AMINO-3-METHYLBUTANOATE DI(4-METHYLBENZENESULFONATE)July 2020December 2020Allow510NoNo
16961949HALOGENATION OF PYRIDINE DERIVATIVESJuly 2020October 2022Allow2711YesNo
16924346INDAZOLE DERIVATIVES AS ALPHA V INTEGRIN ANTAGONISTSJuly 2020February 2021Allow710NoNo
16922064CRYSTALLINE FORMS OF PLASMA KALLIKREIN INHIBITORSJuly 2020December 2021Allow1711YesNo
16908922ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAMEJune 2020October 2022Allow2721NoNo
16898239SOLID FORMS OF A KYNURENINE-3-MONOOXYGENASE INHIBITORJune 2020July 2021Allow1310NoNo
16895221PYRAN DERVATIVES AS CYP11A1 (CYTOCHROME P450 MONOOXYGENASE 11A1) INHIBITORSJune 2020April 2021Allow1010YesNo
16768287MODULATORS OF INDOLEAMINE 2,3-DIOXYGENASEMay 2020January 2022Abandon1910YesNo
16879810ARYL DIHYDROPYRIDINONES AND PIPERIDINONE MGAT2 INHIBITORSMay 2020November 2020Allow610NoNo
16765763PROCESS FOR THE PREPARATION OF FLUOPICOLIDEMay 2020July 2021Allow1410NoNo
16765826DIBUTYLFLUORENE DERIVATIVE AND APPLICATION THEREOF AS PHOTOINITIATORMay 2020September 2022Allow2801YesNo
167658063-OXO-6-HETEROARYL-2-PHENYL-2,3-DIHYDROPYRIDAZINE-4-CARBOXAMIDESMay 2020October 2022Allow2921YesNo
16876966PROCESS FOR THE MANUFACTURING OF (6AR,10AR)-7-PROPYL-6,6A,7,8,9,10,10A,11-OCTAHYDRO-[1,3]DIOXOLO[4',5':5,6]BENZO[1,2-G]QUINOLINE AND (4AR,10AR)-1-PROPYL-1,2,3,4,4A,5,10,10A-OCTAHYDRO-BENZO[G]QUINOLINE-6,7-DIOLMay 2020June 2021Allow1311YesNo
16871333SILIBININ 3,3'-THIODIPROPIONIC ACID ESTER WITH HEPATOPROTECTIVE ACTIVITY AND A METHOD OF PREPARING THE SAMEMay 2020July 2020Allow300NoNo
16761914ORGANIC PHOTOVOLTAIC CELLS AND NON-FULLERENE ACCEPTORS THEREOFMay 2020November 2022Allow3011YesNo
16070762METHOD FOR PREPARING METHIONINE ANALOGUESMay 2020November 2021Abandon4011YesNo
16866681SYNTHESIS OF 5-HYDROXYMETHYLFURFURALMay 2020March 2021Allow1110NoNo
16865855PYRROLE COMPOUNDS, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEMMay 2020March 2021Allow1010NoNo
16865924TYK2 INHIBITORS AND USES THEREOFMay 2020June 2021Allow1320YesNo
15929436ACTIVATING PYRUVATE KINASE RMay 2020January 2021Allow810NoNo
16758235MITOFLAVOSCINS: TARGETING FLAVIN-CONTAINING ENZYMES ELIMINATES CANCER STEM CELLS (CSCS) BY INHIBITING MITOCHONDRIAL RESPIRATIONApril 2020August 2021Allow1621YesNo
16756576EPOXY-OXETANE COMPOUND, METHOD FOR SYNTHESIZING SAME, AND USE OF SAID COMPOUNDApril 2020November 2020Allow700YesNo
16842744METHOD OF SYNTHESIZING (1S,12bS) LACTAM ESTER COMPOUNDApril 2020February 2021Allow1010NoNo
16652829RING-FUSED THIAZOLINO 2-PYRIDONES IN COMBINATION WITH A DRUG AGAINST TUBERCULOSISApril 2020May 2021Allow1411YesNo
16834577SUBSTITUTED PYRIDINONE-CONTAINING TRYCYCLIC COMPOUNDS, AND METHODS USING SAMEMarch 2020January 2021Allow1011YesNo
16831944INHIBITORS OF MITOCHONDRIAL FISSIONMarch 2020October 2021Allow1811YesNo
16651134ELECTRON DONOR, AND METHOD FOR SYNTHESIZING 4, 4'-BIPYRIDINE USING ELECTRON DONORMarch 2020March 2021Allow1211YesNo
16651049OPTICALLY ACTIVE PYRROLIDINE COMPOUND AND METHOD FOR PRODUCING SAMEMarch 2020February 2021Allow1110YesNo
16830561Polymorphism for Irinotecan Free BaseMarch 2020December 2020Allow810NoNo
16817749SALTS OF A HETEROCYCLIC COMPOUND AND CRYSTALLINE FORMS, PROCESSES FOR PREPARING, THERAPEUTIC USES, AND PHARMACEUTICAL COMPOSITIONS THEREOFMarch 2020March 2021Allow1210YesNo
16818800NOVEL NITROGEN-CONTAINING HETEROARYL COMPOUNDS AND METHODS OF USE THEREOFMarch 2020August 2021Allow1810NoNo
16814320HERBICIDAL PYRIDINO-/PYRIMIDINO-THIAZOLESMarch 2020June 2022Allow2700NoNo
16646050BETA-HYDROXY HETEROCYCLIC AMINES AND THEIR USE IN THE TREATMENT OF HYPERGLYCAEMIAMarch 2020January 2022Allow2211YesNo
16645525PRO-FRAGRANCES AND METHOD OF PREPARATION THEREOFMarch 2020January 2023Abandon3410NoNo
16645411APOPTOSIS SIGNAL-REGULATING KINASE INHIBITORS AND USES THEREOFMarch 2020January 2021Allow1110NoNo
16645286HETEROARYL SUBSTITUTED BETA-HYDROXYETHYLAMINES FOR USE IN TREATING HYPERGLYCAEMIAMarch 2020February 2022Allow2311YesNo
16808912ABIRATERONE PRODRUGSMarch 2020June 2020Allow400YesNo
16808246DIHYDROCHROMENE DERIVATIVESMarch 2020July 2020Allow400YesNo
168072183-PHENYL-2,3,4,8,9,10-HEXAHYDROPYRANO[2,3-F]CHROMENE DERIVATIVE AND METHOD FOR SYNTHESIZING OPTICAL ISOMER THEREOFMarch 2020November 2020Allow810NoNo
16803163SELECTIVE EP4 RECEPTOR ANTAGONISTIC SUBSTANCE FOR TREATMENT OF CANCERFebruary 2020October 2020Allow810YesNo
16642706BIARYLOXY DERIVATIVES AS TTX-S BLOCKERSFebruary 2020April 2021Allow1310YesNo
16642817THERAPEUTIC INDAZOLESFebruary 2020July 2021Allow1710YesNo
16640418OCTENDIDINE BASED COMPOUNDSFebruary 2020October 2020Allow800NoNo
16640264ANNULATED GLYCOSIDASE INHIBITORSFebruary 2020May 2022Allow2720YesNo
16639895PYRIDYLPYRIDONE COMPOUNDSFebruary 2020April 2021Allow1400YesNo
16787471COMPOUNDS AND PHARMACEUTICAL COMPOSITIONS CONTAINING AT LEAST ONE OF THE COMPOUNDSFebruary 2020January 2021Allow1110YesNo
16783894METHOD FOR PRODUCING HETEROCYCLIC COMPOUNDFebruary 2020September 2020Allow710NoNo
16778155PRECURSORS FOR RADIOFLUORINATIONJanuary 2020April 2021Allow1511YesNo
16773720HETEROCYCLIC COMPOUNDJanuary 2020December 2020Allow1010NoNo
16752076KCNQ2-5 CHANNEL ACTIVATORJanuary 2020December 2020Allow1010NoNo
16744080BROMODOMAIN INHIBITORSJanuary 2020October 2020Allow910NoNo
16630522Functionalized Pyridine Carbamates with Enhanced Neuroprotective ActivityJanuary 2020February 2022Allow2511YesNo
16739544PHENYLPIPERAZINE PROPROTEIN CONVERTASE SUBTILISIN/KEXIN TYPE 9 (PCSK9) MODULATORS AND THEIR USEJanuary 2020December 2020Allow1110NoNo
16715602HEPATITIS B ANTIVIRAL AGENTSDecember 2019October 2020Allow1010NoNo
16713667SUBSTITUTED PIPERIDINE COMPOUND AND USE THEREOFDecember 2019November 2021Allow2350YesNo
16622352HYDROGENATION PROCESS FOR PREPARING OXYCODONE HYDROCHLORIDE FROM 14-HYDROXYCODEINONEDecember 2019October 2020Allow1010YesNo
16622713PROCESS FOR MAKING ESTERS OF 2,5-FURANDICARBOXYLIC ACIDDecember 2019April 2021Allow1611YesNo
16621885TINOSTAMUSTINE FOR USE IN TREATING SARCOMADecember 2019October 2022Allow3410NoNo
16618518USE OF EZH2 INHIBITORS FOR TREATING CANCERDecember 2019July 2022Allow3121YesNo
16694694Benzylideneguanidine Derivatives and Therapeutic Use for the Treatment of Protein Misfolding DiseasesNovember 2019November 2020Allow1210YesNo
16616826ANTI-TUMOR EFFECT POTENTIATOR USING NOVEL BIPHENYL COMPOUNDNovember 2019June 2022Allow3111YesNo
16687335P97 INHIBITORS FOR TREATING CANCER AND NEURODEGENERATIVE DISORDERSNovember 2019October 2021Abandon2310NoNo
16613514INHIBITION OF GAMMA-GLUTAMYLTRANSFERASE AND GLUTATHIONE CATABOLISM TO ENHANCE THE EFFICACY OF NF-KB SIGNALLING PATHWAY INHIBITORSNovember 2019September 2021Abandon2211YesNo
166803596-AMINOISOQUINOLINE COMPOUNDSNovember 2019September 2020Allow1010NoNo
16612168CRYSTAL OF BENZOFURAN DERIVATIVE FREE BASE AND PREPARATION METHODNovember 2019July 2021Allow2010YesNo
16605757CYCLIC PLASMENYLETHANOLAMINESOctober 2019December 2021Allow2610YesNo
16594344SMALL MOLECULE MDM2 PROTEIN DEGRADERSOctober 2019February 2021Allow1721YesNo
16592595PROCESS OF MAKING SOMATOSTATIN MODULATORSOctober 2019September 2020Allow1110YesNo
16586498S1PR2 ANTAGONISTS AND USES THEREFORSeptember 2019August 2020Allow1110NoNo
16498870SYNTHETIC PROCESSES AND SYNTHETIC INTERMEDIATESSeptember 2019May 2020Allow700YesNo
16580138NOVEL METHODS FOR PREPARATION OF SUBSTITUTED PYRIDINES AND RELATED NOVEL COMPOUNDSSeptember 2019May 2021Allow2011YesNo
16496961NEW CATALYTIC SYSTEM FOR SCALABLE PREPARATION OF INDOXACARBSeptember 2019January 2021Allow1601YesNo
16576360ACTIVATING PYRUVATE KINASE RSeptember 2019January 2020Allow400YesNo
16574373PYRIDYL INHIBITORS OF HEDGEHOG SIGNALLINGSeptember 2019December 2020Abandon1510NoNo
16568459AZAINDOLES AS INHIBITORS OF HPK1September 2019November 2020Allow1401YesNo
165591385 TO 7 MEMBERED HETEROCYCLIC AMIDES AS JAK INHIBITORSSeptember 2019April 2020Allow800NoNo
16487939PROCESS FOR THE PRODUCTION OF TETRAAMINOBIPHENOL MACROCYCLIC LIGANDS; AND NOVEL TETRAAMINOBIPHENOL MACROCYCLIC LIGANDSAugust 2019February 2021Allow1811YesNo
16543303WDR5-MLL1 INHIBITORS AND MODULATORSAugust 2019May 2020Allow900YesNo
16535139PYRIDINONE DICARBOXAMIDE FOR USE AS BROMODOMAIN INHIBITORSAugust 2019July 2020Allow1110NoNo
165300846-ALKYNYL-PYRIDINE DERIVATIVESAugust 2019November 2020Abandon1510YesNo
16482100PROCESS FOR PREPARING D-GLUCARO-6,3-LACTONEJuly 2019May 2020Allow900NoNo
16481569NATURAL COMPOUNDS AND FIBROSISJuly 2019July 2021Allow2421YesNo
16522116COMPOUNDS FOR USE IN TREATING KIDNEY DISORDERSJuly 2019May 2021Abandon2111YesNo
16480514ETHANE-SULFONATE SALT OF QUINOLINE DERIVATIVEJuly 2019August 2020Allow1310YesNo
16480292QUINOLINE COMPOUND, PREPARATION METHOD AND MEDICAL USE THEREFORJuly 2019July 2020Allow1210YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner NORTHINGTON DAVIS, ZINNA.

Strategic Value of Filing an Appeal

Total Appeal Filings
21
Allowed After Appeal Filing
14
(66.7%)
Not Allowed After Appeal Filing
7
(33.3%)
Filing Benefit Percentile
90.5%
Higher 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, 66.7% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the top 25% across the USPTO, indicating that filing appeals is particularly effective here. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Strategic Recommendations

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner NORTHINGTON DAVIS, ZINNA - Prosecution Strategy Guide

Executive Summary

Examiner NORTHINGTON DAVIS, ZINNA works in Art Unit 1625 and has examined 1,996 patent applications in our dataset. With an allowance rate of 83.3%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 20 months.

Allowance Patterns

Examiner NORTHINGTON DAVIS, ZINNA's allowance rate of 83.3% places them in the 58% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by NORTHINGTON DAVIS, ZINNA receive 0.83 office actions before reaching final disposition. This places the examiner in the 5% 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 NORTHINGTON DAVIS, ZINNA is 20 months. This places the examiner in the 91% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +0.0% benefit to allowance rate for applications examined by NORTHINGTON DAVIS, ZINNA. This interview benefit is in the 19% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 42.4% of applications are subsequently allowed. This success rate is in the 94% 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 80.0% of cases where such amendments are filed. This entry rate is in the 96% 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, 200.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 93% 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 100.0% of appeals filed. This is in the 86% percentile among all examiners. Of these withdrawals, 95.0% 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, 47.7% are granted (fully or in part). This grant rate is in the 41% 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 9.1% of allowed cases (in the 93% 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 5.2% of allowed cases (in the 83% 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.
  • 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.
  • 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.