USPTO Examiner JOHNSON CHRISTOPHER A - Art Unit 2899

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18946251FIELD PLATE STRUCTURE TO REDUCE SELF-HEATING IN TRANSISTOR AND RELATED METHODNovember 2024July 2025Allow811YesNo
18814235FIELD-EFFECT TRANSISTORS WITH HETEROGENOUS DOPED REGIONS IN THE SUBSTRATE OF A SILICON-ON-INSULATOR SUBSTRATEAugust 2024June 2025Allow911NoNo
18657928METHOD FOR MAKING DMOS DEVICES INCLUDING A SUPERLATTICE AND FIELD PLATE FOR DRIFT REGION DIFFUSIONMay 2024April 2025Allow1120NoNo
18424201TECHNIQUES FOR SINGULATING PHOTONICS DIE WITH OPTICAL QUALITY EDGEJanuary 2024February 2025Allow1311YesNo
18518872MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAMENovember 2023February 2026Allow2700NoNo
18495043SEMICONDUCTOR DEVICEOctober 2023January 2026Allow2700NoNo
18479366SEMICONDUCTOR DEVICE, METHOD FOR FABRICATING THE SEMICONDUCTOR DEVICE, AND MEMORY DEVICE AND SYSTEM INCLUDING THE SEMICONDUCTOR DEVICEOctober 2023February 2026Allow2800NoNo
18244329SEMICONDUCTOR DEVICESeptember 2023January 2026Allow2800NoNo
18366748MICROELECTRONIC DEVICES WITH SUPPORT PILLARS SPACED ALONG A SLIT REGION BETWEEN PILLAR ARRAY BLOCKS, AND RELATED METHODS AND SYSTEMSAugust 2023March 2026Allow3101NoNo
18230020METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES AND SEMICONDUCTOR DEVICESAugust 2023January 2026Allow3000YesNo
18348940PROCESS FOR TRANSFERRING A THIN LAYER TO A SUPPORT SUBSTRATE THAT HAVE DIFFERENT THERMAL EXPANSION COEFFICIENTSJuly 2023June 2025Abandon2430NoNo
18207499Integrated Assemblies and Methods of Forming Integrated AssembliesJune 2023October 2025Allow2800NoNo
18324068ELECTRONIC DEVICES COMPRISING ADJOINING OXIDE MATERIALS AND RELATED SYSTEMSMay 2023October 2025Allow2900NoNo
18144341Memory Array Comprising Strings Of Memory Cells And Method Used In Forming A Memory Array Comprising Strings Of Memory CellsMay 2023December 2025Allow3110NoNo
18135550DISPLAY DEVICE AND MANUFACTURING METHOD THEREOFApril 2023December 2025Allow3210NoNo
18193647SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOFMarch 2023February 2026Allow3510NoNo
18127404SEMICONDUCTOR DEVICE AND ELECTRONIC SYSTEM INCLUDING THE SAMEMarch 2023September 2025Allow3000NoNo
18190398SEMICONDUCTOR DEVICES AND ELECTRONIC SYSTEMS INCLUDING THE SAMEMarch 2023November 2025Allow3200NoNo
18190876SEMICONDUCTOR DEVICES AND DATA STORAGE SYSTEMS INCLUDING THE SAMEMarch 2023December 2025Allow3300NoNo
18187609MANUFACTURING METHOD OF SEMICONDUCTOR DEVICEMarch 2023November 2025Allow3200NoNo
18186531THREE-DIMENSIONAL SEMICONDUCTOR MEMORY DEVICE, ELECTRONIC SYSTEM INCLUDING THE SAMEMarch 2023October 2025Allow3100YesNo
18184168THREE-DIMENSIONAL MEMORY DEVICEMarch 2023February 2026Allow3510YesNo
18116991Memory Array And Method Used In Forming A Memory Array Comprising Strings Of Memory CellsMarch 2023December 2025Allow3410NoNo
18178460SEMICONDUCTOR STORAGE DEVICEMarch 2023June 2025Allow2800NoNo
18177613MICRO DEVICE INTEGRATION INTO SYSTEM SUBSTRATEMarch 2023April 2025Allow2610NoNo
18115544SEMICONDUCTOR MEMORY DEVICE AND METHOD OF MANUFACTURING THE SEMICONDUCTOR MEMORY DEVICEFebruary 2023September 2025Allow3000NoNo
18172534SEMICONDUCTOR DEVICES AND DATA STORAGE SYSTEMS INCLUDING THE SAMEFebruary 2023December 2025Allow3410YesNo
18110052SEMICONDUCTOR DEVICE AND ELECTRONIC SYSTEM INCLUDING THE SAMEFebruary 2023February 2026Allow3620YesNo
18109271SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAMEFebruary 2023December 2025Allow3411YesNo
18108501SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICEFebruary 2023December 2025Allow3411NoNo
18161331THREE-DIMENSIONAL SEMICONDUCTOR MEMORY DEVICESJanuary 2023April 2025Allow2610NoNo
18101606SEMICONDUCTOR MEMORY DEVICEJanuary 2023September 2025Allow3210NoNo
180920753D MEMORY DEVICE, MEASUREMENT METHOD THEREOF, AND FILM MEASUREMENT DEVICEDecember 2022February 2026Allow3821YesNo
18085717NONVOLATILE MEMORY DEVICEDecember 2022October 2025Allow3410YesNo
18083420Integrated Assemblies and Methods of Forming Integrated AssembliesDecember 2022July 2025Allow3110NoNo
18081172THREE-DIMENSIONAL MEMORY DEVICESDecember 2022September 2025Allow3310YesNo
18080472SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD OF THE SEMICONDUCTOR MEMORY DEVICEDecember 2022June 2025Allow3000NoNo
18079364SEMICONDUCTOR STORAGE DEVICE AND METHOD OF MANUFACTURING THE SAMEDecember 2022March 2025Allow2700NoNo
18078507SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICEDecember 2022December 2025Allow3611NoNo
18063269SEMICONDUCTOR MEMORY DEVICEDecember 2022May 2025Allow3000NoNo
18076702Integrated Circuitry Comprising A Memory Array Comprising Strings Of Memory Cells And Methods Used In Forming A Memory Array Comprising Strings Of Memory CellsDecember 2022June 2025Allow3000NoNo
180749353D SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAMEDecember 2022September 2025Allow3310NoNo
17989061SEMICONDUCTOR DEVICES AND DATA STORAGE SYSTEMS INCLUDING THE SAMENovember 2022May 2025Allow3000NoNo
17975241MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAMEOctober 2022October 2024Allow2310NoNo
17972859SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR MEMORY DEVICEOctober 2022January 2026Allow3811YesNo
17973236THREE-DIMENSIONAL SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAMEOctober 2022March 2025Allow2900NoNo
179729533D MEMORY DEVICE AND METHOD OF FORMING SEAL STRUCTUREOctober 2022September 2025Allow3511NoNo
17968595THREE-DIMENSIONAL MEMORY DEVICES AND METHODS FOR FORMING THE SAMEOctober 2022May 2025Allow3100NoNo
17948627MEMORY DEVICE AND METHOD OF MANUFACTURING THE SAMESeptember 2022December 2025Allow3911NoNo
17903914GATE-ALL-AROUND INTEGRATED CIRCUIT STRUCTURES HAVING UNDERLYING DOPANT-DIFFUSION BLOCKING LAYERSSeptember 2022August 2025Allow3510NoNo
17892940SEMICONDUCTOR MEMORY DEVICEAugust 2022September 2025Allow3710NoNo
17801100MONOLITHIC ELECTRONIC DEVICEAugust 2022August 2025Allow3610NoNo
17878304MEMORY DEVICEAugust 2022December 2024Allow2900NoNo
17872565MEMORY DEVICEJuly 2022August 2025Allow3600NoNo
17860618NONVOLATILE MEMORY DEVICEJuly 2022February 2025Allow3200NoNo
17860516NON-VOLATILE MEMORY DEVICE AND METHOD OF MANUFACTURING THE NON-VOLATILE MEMORY DEVICEJuly 2022September 2024Allow2710NoNo
17857254LIGHT EMITTING ELEMENT DISPLAY DEVICEJuly 2022September 2024Allow2700NoNo
17854356SEMICONDUCTOR DEVICESJune 2022August 2025Allow3810YesNo
17850214Memory Arrays Comprising Strings Of Memory Cells And Methods Used In Forming A Memory Array Comprising Strings Of Memory CellsJune 2022August 2025Allow3710YesNo
17808338SEMICONDUCTOR PACKAGE ELECTRICAL CONTACT STRUCTURES AND RELATED METHODSJune 2022July 2025Allow3710NoNo
17844565Integrated Assemblies and Methods of Forming Integrated AssembliesJune 2022February 2025Allow3220YesNo
17841925Memory Arrays Comprising Strings Of Memory Cells And Methods Used In Forming A Memory Array Comprising Strings Of Memory CellsJune 2022September 2024Allow2710NoNo
17836357Memory Arrays Comprising Strings Of Memory Cells And Methods Used In Forming A Memory Array Comprising Strings Of Memory CellsJune 2022September 2024Allow2810NoNo
17806144SILICON-ON-INSULATOR DIE SUPPORT STRUCTURES AND RELATED METHODSJune 2022June 2025Allow3621NoNo
17830396SEMICONDUCTOR DEVICES AND METHODS OF FORMING THE SAMEJune 2022June 2025Allow3710YesNo
17744092INTEGRATED CIRCUIT DEVICEMay 2022September 2024Allow2810YesNo
17662786SEMICONDUCTOR PACKAGE ELECTRICAL CONTACTS AND RELATED METHODSMay 2022June 2025Allow3731YesNo
17726899NONVOLATILE MEMORY DEVICEApril 2022October 2024Allow3010YesNo
17722736VERTICAL MEMORY DEVICES AND METHODS OF MANUFACTURING THE SAMEApril 2022March 2024Allow2300NoNo
17659320SEMICONDUCTOR FABRICATION APPARATUS AND FABRICATION METHODApril 2022May 2025Allow3711YesNo
17719625RAISED PAD FORMATIONS FOR CONTACTS IN THREE-DIMENSIONAL STRUCTURES ON MICROELECTRONIC WORKPIECESApril 2022September 2024Abandon3010NoNo
17658071MULTI-FACED MOLDED SEMICONDUCTOR PACKAGE AND RELATED METHODSApril 2022March 2025Allow3520NoNo
17763172DUMMY WORDLINE CONTACTS TO IMPROVE ETCH MARGIN OF SEMI-ISOLATED WORDLINES IN STAIRCASE STRUCTURESMarch 2022August 2025Allow4120YesNo
17687131THREE-DIMENSIONAL SEMICONDUCTOR MEMORY DEVICEMarch 2022September 2024Allow3110YesNo
17680914SEMICONDUCTOR MEMORY DEVICE AND MANUFACTURING METHOD THEREOFFebruary 2022May 2024Allow2700NoNo
17678983Integrated Assemblies and Methods of Forming Integrated AssembliesFebruary 2022March 2024Allow2500NoNo
17652014THREE-DIMENSIONAL SEMICONDUCTOR MEMORY DEVICE AND ELECTRONIC SYSTEM INCLUDING THE SAMEFebruary 2022June 2025Allow3900NoNo
17635984SILICON COMPOUNDS AND METHODS FOR DEPOSITING FILMS USING SAMEFebruary 2022August 2025Abandon4220NoNo
17671543SELF ALIGNED GRATINGS FOR TIGHT PITCH INTERCONNECTS AND METHODS OF FABRICATIONFebruary 2022June 2024Allow2800NoNo
17670685Methods Used In Forming A Memory Array Comprising Strings Of Memory CellsFebruary 2022May 2024Allow2700YesNo
17669830SEMICONDUCTOR DEVICEFebruary 2022September 2024Allow3110YesNo
17586682Methods of Forming Charge-Blocking Material, and Integrated Assemblies Having Charge-Blocking MaterialJanuary 2022October 2024Allow3320NoNo
17582143SOLID-STATE IMAGING DEVICE AND ELECTRONIC APPARATUSJanuary 2022June 2024Allow2810NoNo
17648708MICROELECTRONIC DEVICES INCLUDING CORROSION CONTAINMENT FEATURES, AND RELATED ELECTRONIC SYSTEMS AND METHODSJanuary 2022June 2024Allow2810NoNo
17579656METHOD FOR FABRICATING NONVOLATILE MEMORY DEVICEJanuary 2022September 2023Allow1900NoNo
17575707SEMICONDUCTOR DEVICE, AND METHOD OF MANUFACTURING THE SEMICONDUCTOR DEVICEJanuary 2022August 2024Allow3110NoNo
17575947METHOD OF FABRICATING SEMICONDUCTOR DEVICEJanuary 2022December 2023Allow2310YesNo
17574422RESISTIVE MEMORYJanuary 2022October 2024Allow3310NoNo
17567297Memory Arrays Comprising Strings Of Memory Cells And Methods Used In Forming A Memory Array Comprising Strings Of Memory CellsJanuary 2022September 2023Allow2010NoNo
17567461Integrated Circuit Package and MethodJanuary 2022January 2024Allow2511NoNo
17563685SEMICONDUCTOR DEVICE, METHOD FOR FABRICATING THE SEMICONDUCTOR DEVICE, AND MEMORY DEVICE AND SYSTEM INCLUDING THE SEMICONDUCTOR DEVICEDecember 2021June 2023Allow1800NoNo
17645866SEMICONDUCTOR DEVICE HAVING A STACKED STRUCTUREDecember 2021February 2024Allow2610YesNo
17645418DISPLAY DEVICEDecember 2021May 2025Abandon4040NoNo
17644792METHOD OF MANUFACTURING DISPLAY DEVICEDecember 2021July 2025Allow4310NoNo
17550580THREE-DIMENSIONAL MEMORY DEVICE WITH SOURCE STRUCTURE AND METHODS FOR FORMING THE SAMEDecember 2021June 2023Allow1810YesNo
17536819METHOD OF MANUFACTURING A SEMICONDUCTOR AND A SEMICONDUCTOR DEVICENovember 2021December 2023Allow2511YesNo
17532852METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES AND SEMICONDUCTOR DEVICESNovember 2021January 2024Allow2511NoNo
17523223SEMICONDUCTOR DEVICES AND METHODS OF FORMING THE SAMENovember 2021September 2023Allow2210YesNo
17514331METHODS OF MANUFACTURING VERTICAL MEMORY DEVICESOctober 2021June 2023Allow1900NoNo
17512383THREE-DIMENSIONAL MEMORY DEVICE INCLUDING DISCRETE MEMORY ELEMENTS AND METHOD OF MAKING THE SAMEOctober 2021August 2025Allow4510NoNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
1
Examiner Affirmed
0
(0.0%)
Examiner Reversed
1
(100.0%)
Reversal Percentile
96.2%
Higher than average

What This Means

With a 100.0% reversal rate, the PTAB has reversed the examiner's rejections more often than affirming them. This reversal rate is in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.

Strategic Value of Filing an Appeal

Total Appeal Filings
14
Allowed After Appeal Filing
3
(21.4%)
Not Allowed After Appeal Filing
11
(78.6%)
Filing Benefit Percentile
28.2%
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, 21.4% 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 JOHNSON, CHRISTOPHER A - Prosecution Strategy Guide

Executive Summary

Examiner JOHNSON, CHRISTOPHER A works in Art Unit 2899 and has examined 545 patent applications in our dataset. With an allowance rate of 84.6%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 24 months.

Allowance Patterns

Examiner JOHNSON, CHRISTOPHER A's allowance rate of 84.6% places them in the 60% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by JOHNSON, CHRISTOPHER A receive 1.65 office actions before reaching final disposition. This places the examiner in the 33% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by JOHNSON, CHRISTOPHER A is 24 months. This places the examiner in the 84% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +5.4% benefit to allowance rate for applications examined by JOHNSON, CHRISTOPHER A. This interview benefit is in the 31% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 27.7% of applications are subsequently allowed. This success rate is in the 49% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 30.9% of cases where such amendments are filed. This entry rate is in the 45% 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, 111.1% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 80% 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 90.9% of appeals filed. This is in the 83% percentile among all examiners. Of these withdrawals, 80.0% 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, 45.2% are granted (fully or in part). This grant rate is in the 39% 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 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 8.2% of allowed cases (in the 87% 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:

  • 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.

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.