Detailed information about the 100 most recent patent applications.
| Application Number | Title | Filing Date | Disposal Date | Disposition | Time (months) | Office Actions | Restrictions | Interview | Appeal |
|---|---|---|---|---|---|---|---|---|---|
| 19097310 | Lithium Secondary Battery | April 2025 | January 2026 | Allow | 10 | 2 | 0 | Yes | No |
| 19004117 | BATTERY | December 2024 | December 2025 | Allow | 12 | 2 | 0 | Yes | No |
| 18813060 | ANODE, LITHIUM METAL BATTERY INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE LITHIUM METAL BATTERY | August 2024 | December 2025 | Allow | 16 | 2 | 0 | No | No |
| 18713296 | Non-Aqueous Electrolyte and Lithium Secondary Battery Including the Same | May 2024 | May 2025 | Allow | 12 | 3 | 0 | Yes | No |
| 18416905 | NEGATIVE ELECTRODE PLATE, SODIUM ION BATTERY, POWER CONSUMING DEVICE AND USE | January 2024 | March 2026 | Abandon | 25 | 4 | 0 | Yes | No |
| 18531894 | ELECTRODE ASSEMBLY AND LITHIUM BATTERY COMPRISING SAME | December 2023 | October 2025 | Allow | 22 | 2 | 0 | No | No |
| 18386651 | Lithium Secondary Battery | November 2023 | February 2026 | Allow | 28 | 2 | 0 | Yes | No |
| 18552738 | ELECTROLYTE SYSTEM AND APPLICATION THEREOF | September 2023 | February 2026 | Abandon | 28 | 2 | 0 | No | No |
| 18457507 | SOFC-CONDUCTION | August 2023 | November 2025 | Allow | 26 | 2 | 0 | No | No |
| 18040094 | ADDITIVE FOR NON-AQUEOUS ELECTROLYTE, NON-AQUEOUS ELECTROLYTE, AND POWER STORAGE DEVICE | January 2023 | March 2026 | Abandon | 38 | 1 | 0 | No | No |
| 18013295 | SEPARATOR, LITHIUM SECONDARY BATTERY EMPLOYING SAME, AND METHOD FOR MANUFACTURING SAME | December 2022 | February 2026 | Abandon | 38 | 4 | 0 | No | No |
| 17932596 | HIGH ENERGY SOLID-STATE BATTERIES AND METHODS OF MAKING THE SAME | September 2022 | March 2026 | Allow | 42 | 4 | 0 | Yes | Yes |
| 17814374 | SULFIDE SOLID ELECTROLYTE | July 2022 | September 2025 | Allow | 38 | 2 | 0 | Yes | No |
| 17858482 | BIPOLAR IONOMER MEMBRANE | July 2022 | September 2025 | Allow | 38 | 1 | 0 | No | No |
| 17809832 | PRINTED ELECTROCHEMICAL CELLS WITH ZINC SALTS AND METHODS OF FABRICATING THEREOF | June 2022 | July 2025 | Allow | 36 | 4 | 1 | No | No |
| 17729236 | POSITIVE ELECTRODE ACTIVE MATERIAL AND MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL | April 2022 | July 2025 | Allow | 39 | 4 | 0 | Yes | Yes |
| 17697050 | STABILIZED SOLID GARNET ELECTROLYTE AND METHODS THEREOF | March 2022 | February 2026 | Allow | 47 | 3 | 0 | No | Yes |
| 17697061 | STABILIZED SOLID GARNET ELECTROLYTE AND METHODS THEREOF | March 2022 | January 2026 | Allow | 46 | 2 | 1 | Yes | No |
| 17666574 | POSITIVE ELECTRODE AND ELECTRICITY STORAGE DEVICE | February 2022 | February 2026 | Allow | 48 | 3 | 0 | Yes | No |
| 17582401 | NEGATIVE ELECTRODE PLATE, LITHIUM SECONDARY BATTERY, AND APPARATUS CONTAINING SUCH LITHIUM SECONDARY BATTERY | January 2022 | December 2025 | Allow | 47 | 4 | 0 | Yes | No |
| 17626753 | RECTANGULAR SECONDARY BATTERY | January 2022 | November 2025 | Allow | 46 | 3 | 0 | Yes | No |
| 17563500 | BATTERY MODULE, BATTERY PACK, AND VEHICLE | December 2021 | November 2025 | Allow | 47 | 3 | 0 | Yes | No |
| 17531929 | MICROPOROUS MEMBRANES, SEPARATORS, LITHIUM BATTERIES, AND RELATED METHODS | November 2021 | November 2025 | Allow | 47 | 4 | 1 | No | No |
| 17524385 | All-Solid-State Battery and Method of Manufacturing the Same | November 2021 | December 2025 | Allow | 50 | 3 | 1 | Yes | No |
| 17521766 | LITHIUM METAL BATTERY | November 2021 | February 2026 | Abandon | 51 | 6 | 0 | No | No |
| 17503846 | Use of Silicon With Impurities In Silicon-Dominant Anode Cells | October 2021 | February 2026 | Allow | 52 | 5 | 0 | Yes | No |
| 17593862 | METHOD OF PRODUCING ELECTRODE FOR ELECTROCHEMICAL DEVICE, METHOD OF PRODUCING ELECTROCHEMICAL DEVICE, AND SHAPING MATERIAL FOR ELECTRODE | September 2021 | March 2026 | Allow | 53 | 5 | 0 | Yes | No |
| 17448260 | EXPLOSIVE ENVIRONMENT NEUTRALIZATION IN CHEMICAL ENERGY STORAGE | September 2021 | October 2025 | Allow | 49 | 2 | 1 | Yes | No |
| 17411706 | NON-FLAMMABLE ELECTROLYTES | August 2021 | January 2026 | Allow | 53 | 2 | 0 | No | Yes |
| 17238687 | NOVEL ORGANOBORANES USEFUL AS ELECTROLYTES FOR LITHIUM BATTERIES | April 2021 | September 2025 | Allow | 53 | 2 | 1 | No | No |
| 17264701 | POSITIVE ELECTRODE ACTIVE MATERIAL AND MANUFACTURING METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL | January 2021 | December 2025 | Abandon | 59 | 3 | 0 | No | No |
| 17133404 | ELECTROLYTE COMPOSITIONS FOR LITHIUM ION BATTERIES | December 2020 | June 2025 | Allow | 54 | 4 | 0 | Yes | No |
| 17247142 | REFORMER-ELECTROLYZER-PURIFIER (REP) ASSEMBLY FOR HYDROGEN PRODUCTION, SYSTEMS INCORPORATING SAME AND METHOD OF PRODUCING HYDROGEN | December 2020 | September 2025 | Allow | 57 | 5 | 1 | Yes | No |
| 16957657 | ELECTROLYTE SOLUTION FOR LITHIUM ION SECONDARY BATTERY | June 2020 | August 2025 | Allow | 60 | 6 | 0 | No | Yes |
| 16366493 | FUEL CELL BATTERY | March 2019 | April 2021 | Allow | 25 | 2 | 0 | Yes | No |
| 16299887 | SOLID ALKALINE FUEL CELL | March 2019 | October 2019 | Allow | 8 | 1 | 0 | Yes | No |
| 16269893 | FUEL CELL SYSTEM AND CONTROL METHOD THEREOF | February 2019 | August 2020 | Allow | 18 | 1 | 0 | No | No |
| 15554198 | POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY | August 2017 | October 2018 | Allow | 14 | 0 | 0 | No | No |
| 15661292 | INTERCHANGEABLE CARRIAGE FOR AN ENERGY STORAGE AND POWER SUPPLY DEVICE | July 2017 | March 2020 | Allow | 32 | 2 | 1 | Yes | No |
| 15546691 | BATTERY CELL AND BATTERY SYSTEM | July 2017 | September 2020 | Allow | 37 | 5 | 0 | Yes | No |
| 15625476 | POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME | June 2017 | October 2018 | Allow | 16 | 2 | 0 | No | No |
| 15474699 | BATTERIES INCLUDING A FLAT PLATE DESIGN | March 2017 | June 2018 | Allow | 15 | 2 | 0 | No | No |
| 15468299 | Electrochemical Cell, Electrolyte Suitable for the Filling Thereof, Production Method Thereof, and Method for the Operation Thereof | March 2017 | October 2025 | Allow | 60 | 8 | 2 | No | No |
| 15220890 | Exchangeable Electric Vehicle Battery Receptacle, Kiosk, and Infrastructure | July 2016 | June 2019 | Allow | 34 | 2 | 0 | Yes | No |
| 15007484 | Method for Producing a Fuel Cell and a Fuel Cell System | January 2016 | December 2018 | Allow | 34 | 2 | 0 | Yes | No |
| 14997107 | Silicon Anode for a Rechargeable Battery | January 2016 | August 2017 | Allow | 19 | 1 | 0 | Yes | No |
| 14931896 | DEVICE AND METHOD FOR SUPPLYING A FUEL CELL BATTERY | November 2015 | June 2019 | Allow | 43 | 4 | 1 | Yes | No |
| 14621091 | Cost-Effective Solid State Reactive Sintering Method for Protonic Ceramic Fuel Cells | February 2015 | September 2018 | Allow | 43 | 3 | 1 | Yes | No |
| 14597389 | ELECTRODE STRUCTURE HAVING ALTERNATING COMPOSITE LAYERS | January 2015 | September 2017 | Allow | 32 | 3 | 0 | Yes | No |
| 14593797 | HIGH ENERGY DENSITY SOLID STATE LITHIUM ION BATTERY WITH FAIL-SALE | January 2015 | December 2018 | Allow | 48 | 4 | 1 | No | No |
| 14399492 | CURRENT COLLECTOR, ELECTRODE STRUCTURE, NONAQUEOUS ELECTROLYTE BATTERY AND ELECTRICAL STORAGE DEVICE, AND METHOD FOR PRODUCING CURRENT COLLECTOR | November 2014 | June 2017 | Allow | 31 | 1 | 1 | Yes | No |
| 14523387 | CELL MODULE ASSEMBLY | October 2014 | February 2017 | Allow | 28 | 2 | 0 | Yes | No |
| 13719089 | MODULAR AND PORTABLE BATTERY PACK POWER SYSTEM | December 2012 | May 2016 | Allow | 41 | 2 | 1 | Yes | No |
| 13615099 | RECHARGEABLE BATTERY PACK | September 2012 | November 2015 | Allow | 38 | 5 | 0 | Yes | No |
| 13600192 | Materials for Battery Electrolytes and Methods for Use | August 2012 | October 2013 | Allow | 14 | 2 | 1 | Yes | No |
| 13577594 | FUEL CELL SYSTEM | August 2012 | December 2014 | Allow | 28 | 3 | 0 | Yes | No |
| 13568986 | SOLID OXIDE FUEL CELL STACK | August 2012 | October 2014 | Allow | 26 | 3 | 0 | Yes | No |
| 13537890 | ELECTRODE FOR BATTERY, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK | June 2012 | December 2016 | Allow | 54 | 6 | 0 | No | No |
| 13493592 | DYNAMIC PRESSURE CONTROL IN A BATTERY ASSEMBLY | June 2012 | November 2015 | Allow | 42 | 4 | 1 | Yes | Yes |
| 13489101 | ELECTRODE MATERIALS FOR ELECTRICAL CELLS | June 2012 | April 2015 | Allow | 34 | 3 | 2 | No | No |
| 13482301 | OPTICAL SEMICONDUCTOR AND METHOD FOR PRODUCING THE SAME, OPTICAL SEMICONDUCTOR DEVICE, PHOTOCATALYST, HYDROGEN PRODUCING DEVICE, AND ENERGY SYSTEM | May 2012 | November 2013 | Allow | 18 | 3 | 1 | No | No |
| 13499801 | DEVICE FOR ELECTRICALLY INTERCONNECTING CELLS IN A BATTERY PACK BY MEANS OF CELL CONNECTORS AND BATTERY PACK WITH SUCH CELL CONNECTORS | May 2012 | March 2017 | Allow | 60 | 7 | 0 | Yes | No |
| 13502401 | CARBON MATERIAL FOR LITHIUM ION SECONDARY CELL, NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY CELL AND LITHIUM ION SECONDARY CELL | April 2012 | August 2015 | Allow | 40 | 5 | 0 | Yes | No |
| 13433189 | REBALANCING ELECTROLYTES IN REDOX FLOW BATTERY SYSTEMS | March 2012 | October 2014 | Allow | 30 | 3 | 1 | Yes | Yes |
| 13433045 | MANUFACTURING METHOD OF ELECTRODE CATALYST LAYER, MEMBRANE ELECTRODE ASSEMBLY USING THE SAME, FUEL CELL USING THE SAME AND COMPLEX PARTICLES | March 2012 | October 2016 | Allow | 55 | 7 | 1 | No | No |
| 13088592 | POWER STORAGE DEVICE AND METHOD FOR MANUFACTURING THE SAME | April 2011 | February 2017 | Allow | 60 | 7 | 1 | Yes | No |
| 12980130 | APPARATUS AND METHODS FOR CONNECTING FUEL CELLS TO AN EXTERNAL CIRCUIT | December 2010 | March 2016 | Allow | 60 | 8 | 1 | Yes | No |
| 12952887 | THIN FILM BATTERY HAVING IMPROVED EFFICIENCY OF COLLECTING ELECTRIC CURRENT | November 2010 | August 2016 | Allow | 60 | 6 | 0 | Yes | No |
| 12807103 | Secondary particle and lithium battery including secondary particle | August 2010 | August 2015 | Allow | 59 | 7 | 0 | Yes | No |
| 12739736 | AUXILIARY POWER UNIT | May 2010 | November 2015 | Allow | 60 | 5 | 1 | Yes | No |
| 12764457 | BATTERIES INCLUDING A FLAT PLATE DESIGN | April 2010 | November 2016 | Allow | 60 | 9 | 1 | Yes | Yes |
| 12628022 | SECONDARY BATTERY | November 2009 | March 2015 | Allow | 60 | 5 | 0 | No | No |
| 11587175 | Fuel Cell and Fuel Cell Use Gas Diffusion Electrode | October 2006 | May 2017 | Allow | 60 | 7 | 1 | Yes | No |
This analysis examines appeal outcomes and the strategic value of filing appeals for examiner AMPONSAH, OSEI K.
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.
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, 80.0% 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.
✓ 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 is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.
Examiner AMPONSAH, OSEI K works in Art Unit 1752 and has examined 52 patent applications in our dataset. With an allowance rate of 96.2%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 47 months.
Examiner AMPONSAH, OSEI K's allowance rate of 96.2% places them in the 86% percentile among all USPTO examiners. This examiner is more likely to allow applications than most examiners at the USPTO.
On average, applications examined by AMPONSAH, OSEI K receive 3.88 office actions before reaching final disposition. This places the examiner in the 97% 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.
The median time to disposition (half-life) for applications examined by AMPONSAH, OSEI K is 47 months. This places the examiner in the 9% percentile for prosecution speed. Applications take longer to reach final disposition with this examiner compared to most others.
Conducting an examiner interview provides a +11.8% benefit to allowance rate for applications examined by AMPONSAH, OSEI K. This interview benefit is in the 47% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.
When applicants file an RCE with this examiner, 19.2% of applications are subsequently allowed. This success rate is in the 19% 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.
This examiner enters after-final amendments leading to allowance in 31.7% of cases where such amendments are filed. This entry rate is in the 46% 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.
When applicants request a pre-appeal conference (PAC) with this examiner, 100.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 70% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences show above-average effectiveness with this examiner. If you have strong arguments, a PAC request may result in favorable reconsideration.
This examiner withdraws rejections or reopens prosecution in 83.3% of appeals filed. This is in the 76% percentile among all examiners. Of these withdrawals, 60.0% 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.
When applicants file petitions regarding this examiner's actions, 33.3% are granted (fully or in part). This grant rate is in the 20% percentile among all examiners. Strategic Note: Petitions are rarely granted regarding this examiner's actions compared to other examiners. Ensure you have a strong procedural basis before filing a petition, as the Technology Center Director typically upholds this examiner's decisions.
Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 6% 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 4.0% of allowed cases (in the 77% 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.
Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:
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.