USPTO Examiner ROLDAN RAMOS CHRISTIAN - Art Unit 1723

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19284734POSITIVE ELECTRODE PLATE AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRICAL APPARATUSJuly 2025March 2026Allow721NoNo
19208558WARMING-UP CONTROL METHOD IN STARTING PROCESS OF FUEL CELL SYSTEM AND FUEL CELL SYSTEMMay 2025December 2025Allow711NoNo
19046499METHODS AND SYSTEMS FOR OPTIMIZING LIFETIME OF FUEL CELL SYSTEM BASED ON ADJUSTMENT AND CONSTRAINT OF THERMOELECTRIC RATIOFebruary 2025June 2025Allow410NoNo
18996740CROSS-CELL LEAK DETECTION AND SAMPLE CONDITIONING SYSTEMJanuary 2025October 2025Allow911NoNo
18987143PREDICTION METHOD OF ELECTROCHEMICAL AND MECHANICAL PERFORMANCES IN SOFC COLD AND HOT CYCLEDecember 2024July 2025Allow720YesNo
18979352Electrochemical Reactor, Electrochemical Reactor Systems, Processes for Electrochemical Reactions, and Methods Using SameDecember 2024June 2025Allow611NoNo
18749909Flow Battery Fluid Exchange System and MethodJuly 2024September 2025Allow1431YesNo
18743930INTEGRATED SOLID OXIDE FUEL CELL COMBUSTOR ASSEMBLY, SYSTEM, AND METHOD THEREOFJune 2024March 2025Allow921NoNo
18672838METHODS AND DEVICES FOR PREVENTING THERMALLY-INDUCED STRESS CRACKS IN LARGE FOOTPRINT SOLID OXIDE FUEL CELL COLUMNSMay 2024April 2025Allow1020NoNo
18427393HYDRIDE ION CONDUCTORJanuary 2024March 2026Allow2610NoNo
18569872COOLING METHOD FOR OPERATING A FUEL-CELL SYSTEMDecember 2023September 2024Allow911NoNo
18490018WATER GAS SHIFT REACTOR COOLING ASSEMBLY FOR A FUEL CELL SYSTEMOctober 2023February 2025Allow1621YesNo
18487928RECHARGEABLE BATTERY MODULEOctober 2023October 2025Allow2440NoNo
18343208MULTI-SHELL STRUCTURES AND FABRICATION METHODS FOR BATTERY ACTIVE MATERIALS WITH EXPANSION PROPERTIESJune 2023July 2024Allow1221NoNo
18215622BATTERYJune 2023March 2025Allow2131YesNo
18324748DYNAMIC ADJUSTMENT OF CURRENT OR POWER DRAW FOR FUEL CELL APPLICATIONS WITH ENHANCED TRANSIENT CAPABILITIESMay 2023July 2023Allow200NoNo
18137165BUSBAR AND BATTERY PACK INCLUDING THE SAMEApril 2023February 2026Allow3410YesNo
18128593PACKAGING HOUSING, BATTERY, AND ELECTRIC DEVICEMarch 2023January 2026Allow3410NoNo
18127139FUEL CELL SYSTEMMarch 2023January 2026Allow3410NoNo
18028371Bipolar Plate, Cell Frame, Battery Cell, Cell Stack, and Redox Flow BatteryMarch 2023January 2026Allow3310YesNo
18124643FUEL CELL SYSTEMMarch 2023December 2025Allow3300NoNo
18186963METAL FUEL FLOW BATTERY MANAGEMENT SYSTEMMarch 2023January 2026Allow3410NoNo
18122216AIR MANAGEMENT SYSTEM AND A METHOD FOR CONTROLLING INTAKE AIR PRESSURE AND EXHAUST BACK PRESSURE OF A FUEL CELL SYSTEMMarch 2023October 2025Allow3100NoNo
18245463METHOD AND FUEL CELL POWER SYSTEM TO IDENTIFY AND COMPENSATE FOR FUEL COMPOSITION VARIATIONS IN A FUEL CELL STACK OR SYSTEMMarch 2023March 2026Allow3611YesNo
18245010FUEL CELL STACK HAVING A SENSOR, AND METHOD USED FOR PRODUCING A FUEL CELL STACK HAVING THE SENSORMarch 2023January 2026Allow3410NoNo
18044760METHOD FOR OPERATING A FUEL CELL DEVICE, THE FUEL CELL DEVICE, AND A MOTOR VEHICLE OUTFITTED WITH A FUEL CELL DEVICEMarch 2023November 2025Allow3210NoNo
18176762CELL STACK-TO-CELL STACK CONNECTIONS FOR TRACTION BATTERY PACKSMarch 2023March 2026Allow3611NoNo
18004369FUEL CELL SYSTEM WITH A DEFLECTION MEANS IN THE ANODE PATHJanuary 2023January 2026Allow3620NoNo
18013988Cell Frame, Electrochemical Cell, Cell Stack and Operating MethodDecember 2022February 2026Allow3810NoNo
18003571METHOD FOR CHECKING AT LEAST ONE SENSOR WITHIN THE ANODE PATH OF A FUEL CELL SYSTEMDecember 2022October 2025Allow3410YesNo
18074772FUEL CELL SYSTEM AND CONTROL METHOD THEREOFDecember 2022August 2025Allow3201NoNo
18007793HEAT EXCHANGER SYSTEM FOR OPERATING A FUEL CELL STACKDecember 2022October 2025Allow3411YesNo
18072287SYSTEM INCLUDING FUEL CELL ASSEMBLY VOLTAGE MONITORNovember 2022July 2025Allow3100YesNo
17998778AIR SUPPLY APPARATUS FOR FUEL CELL SYSTEMS, AND FUEL CELL SYSTEMNovember 2022January 2026Allow3821NoNo
18053834METHODS AND DEVICES FOR PREVENTING THERMALLY-INDUCED STRESS CRACKS IN LARGE FOOTPRINT SOLID OXIDE FUEL CELL COLUMNSNovember 2022February 2024Allow1621YesNo
18053605FUEL CELL SYSTEM INCLUDING ANODE EXHAUST DIVERSION AND METHOD OF OPERATING THE SAMENovember 2022December 2023Allow1321NoNo
18049987FLOW BATTERY CLEANSING CYCLE TO MAINTAIN ELECTROLYTE HEALTH AND SYSTEM PERFORMANCEOctober 2022November 2025Abandon3610NoNo
17970166BATTERYOctober 2022September 2023Allow1111NoNo
18047976FUEL CELL HYDROGEN MODULEOctober 2022December 2023Allow1411NoNo
17968014HYDROGEN RECIRCULATION EJECTOR FOR FUEL CELLSOctober 2022September 2025Allow3510NoNo
17996243ELECTRODE BINDER AND SLURRY COMPOSITIONS FOR LITHIUM ION ELECTRICAL STORAGE DEVICESOctober 2022January 2026Abandon3910NoNo
17919089INTERCONNECTING STRUCTURE FOR ENERGY STORAGE CELLSOctober 2022December 2025Allow3920NoNo
17965033FUEL CELL UNITOctober 2022October 2025Allow3620YesNo
17960931FUEL CELLOctober 2022September 2025Allow3510NoNo
17933278Porous Electrode for Electrochemical CellsSeptember 2022October 2025Allow3711NoNo
17940880POROUS CERAMIC SEPARATOR MATERIALS AND FORMATION PROCESSESSeptember 2022June 2025Allow3320YesNo
17802318Pouch Type Battery Case and Pouch Type Secondary BatteryAugust 2022December 2025Allow4020NoNo
17889295HYDROGEN-PRODUCING FUEL CELL SYSTEMS AND METHODS OF OPERATING THE SAMEAugust 2022February 2025Allow3010YesNo
17888194FUEL CELL REGENERATIONAugust 2022July 2025Allow3521YesNo
17760385A SEQUENTIAL REACTOR FOR ADSORPTION OF POLLUTANTS ONTO ACTIVATED CARBON AND ELECTROCHEMICAL REGENERATION OF THE ACTIVATEAugust 2022February 2026Abandon4221NoNo
17875695UNITIZED REGENERATIVE FUEL CELL SYSTEM FOR TUNNEL AND METHOD FOR CONTROLLING THE SAMEJuly 2022March 2025Allow3101NoNo
17865556NEGATIVE ELECTRODE ACTIVE MATERIAL, MIXED NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, PRODUCTION METHOD OF NEGATIVE ELECTRODE ACTIVE MATERIAL, AND PRODUCTION METHOD OF LITHIUM ION SECONDARY BATTERYJuly 2022March 2025Allow3220NoNo
17811525SEALED REDOX BATTERYJuly 2022April 2024Allow2110NoNo
17856123FUEL CELL SYSTEMJuly 2022November 2024Abandon2820NoNo
17854070CELL MODULE HAVING A PLURALITY OF ELECTROCHEMICAL POUCH CELLSJune 2022May 2025Allow3510NoNo
17848025ELECTROCHEMICAL CELLS WITH IONIC SEQUESTRATION PROVIDED BY POROUS SEPARATORSJune 2022February 2025Allow3220NoNo
17788141ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERYJune 2022August 2025Allow3820NoNo
17807986HANDLING OF VARIABLE AND UNPREDICTABLE GAS COMPOSITION CHANGES TO MAXIMIZE HEALTH AND PERFORMANCE OF FUEL CELL SYSTEMSJune 2022November 2025Allow4141NoNo
17605193SECONDARY BATTERY AND SECONDARY BATTERY SYSTEMJune 2022August 2025Abandon4610NoNo
17804816SEALED REDOX BATTERYMay 2022November 2024Allow3020NoNo
17661715BATTERYMay 2022April 2025Allow3510NoNo
17767820SYSTEMS AND METHODS FOR PROVIDING HEAT CONTROL IN A MULTI-STACK FUEL CELL SYSTEMApril 2022August 2025Allow4010NoNo
17764797Battery Pack, Electronic Device Comprising Same, And VehicleMarch 2022April 2025Allow3610YesNo
17692870INERTIALLY ENHANCED MASS TRANSPORT USING POROUS FLOW-THROUGH ELECTRODES WITH PERIODIC LATTICE STRUCTURESMarch 2022March 2025Allow3631YesNo
17676243FUEL CELL SYSTEM AND DRIVING METHOD THEREFORFebruary 2022October 2025Abandon4341YesNo
17673917FUEL CELL SYSTEMFebruary 2022September 2023Allow1910NoNo
17669867CELL VOLTAGE CONTROL THROUGH OXYGEN STARVATION FOR FUEL CELL SYSTEMSFebruary 2022August 2024Allow3011NoNo
17669886VOLTAGE-BASED FUEL CELL CONTROLFebruary 2022August 2023Allow1801NoNo
17667116METHOD OF OPERATING FUEL CELL SYSTEMFebruary 2022March 2023Allow1410YesNo
17665905SILICON ANODES WITH FUNCTIONAL COATINGSFebruary 2022September 2025Abandon4421YesNo
17591637ELECTRIC POWER SUPPLY SYSTEM, CONTROLLING METHOD OF ELECTRIC POWER SUPPLY SYSTEM, AND STORAGE MEDIUMFebruary 2022August 2023Allow1911NoNo
17590849METHOD FOR PRODUCING NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICLEFebruary 2022October 2023Allow2020NoNo
17648984FUEL CELL SYSTEMJanuary 2022April 2023Allow1400NoNo
17573309HEAT TREATMENT APPARATUS OF MEA FOR FUEL CELLJanuary 2022September 2023Allow2010NoNo
17645293FLOW BATTERY CLEANSING CYCLE TO MAINTAIN ELECTROLYTE HEALTH AND SYSTEM PERFORMANCEDecember 2021June 2024Allow3031NoNo
17456948INTEGRATED HYDROGEN RECYCLE SYSTEM USING PRESSURIZED MULTICHAMBER TANKNovember 2021April 2024Allow2921NoNo
17534751FUEL CELL SYSTEMNovember 2021May 2023Allow1710NoNo
17528020BATTERY MODULENovember 2021October 2023Allow2320NoNo
17486052SOLID OXIDE FUEL CELL STACKSeptember 2021April 2023Allow1810NoNo
17462669METHOD AND SYSTEM FOR CORRECTING OFFSET OF HYDROGEN PRESSURE SENSORAugust 2021July 2023Allow2211NoNo
17324499METHODS OF APPLYING PRINTABLE LITHIUM COMPOSITIONS FOR FORMING BATTERY ELECTRODESMay 2021June 2024Allow3731NoNo
17243661FUEL CELL SYSTEM AND METHOD OF CONTROLLING FUEL CELLApril 2021July 2023Allow2611NoNo
17241298GLASS FRIT, CRYSTALLIZED GLASS, METHOD FOR PRODUCING CRYSTALLIZED GLASS, SOLID ELECTROLYTE, AND LITHIUM ION SECONDARY BATTERYApril 2021June 2025Allow5012NoNo
17288785NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD OF USING NONAQUEOUS ELECTROLYTE SECONDARY BATTERYApril 2021January 2025Allow4530NoNo
17287221Transparent BodyApril 2021November 2024Allow4310NoNo
17233869FUEL CELL SYSTEM AND CONTROL METHOD FOR FUEL CELL SYSTEMApril 2021March 2023Allow2320NoNo
17221004FUEL CELL SYSTEMApril 2021April 2022Allow1300NoNo
17216725METHOD OF DETERMINING DEGRADATION OF FUEL CELL STACK, AND FUEL CELL VEHICLE EQUIPPED WITH THE FUEL CELL STACKMarch 2021July 2023Allow2721YesNo
17213835METHOD OF OPERATING FUEL CELL SYSTEMMarch 2021July 2023Allow2811NoNo
17198771SYSTEM INCLUDING FUEL CELL ASSEMBLY VOLTAGE MONITORMarch 2021October 2022Allow1941YesYes
17273904DEVICE FOR COOLING BATTERY CELLSMarch 2021June 2025Abandon5120NoNo
17173786FLOW BAFFLE FOR MOLTEN CARBONATE FUEL CELLFebruary 2021October 2023Allow3321YesNo
17159452FUEL CELL SYSTEM AND CONTROL METHOD THEREOFJanuary 2021February 2023Abandon2421NoNo
17262871LEAD MEMBERJanuary 2021July 2025Abandon5421YesNo
17258855ELECTROCHEMICAL ACCUMULATOR WITH BIPOLAR ARCHITECTURE INCLUDING A SPECIFIC STRUCTUREJanuary 2021May 2025Allow5231NoNo
17251413SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING THE SAMEDecember 2020December 2024Allow4930NoNo
17114910SEALED REDOX BATTERYDecember 2020February 2022Allow1521YesNo
17052295SULFUR-CARBON COMPOSITE, METHOD FOR PREPARING THE SAME, AND POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING THE SAMENovember 2020June 2025Allow5531YesNo
17085413FUEL CELL HAVING BIPOLAR PLATES WITH MULTI-LAYERED DEHOMOGENIZED TURING-PATTERN MICROSTRUCTURE CONFIGURATIONOctober 2020May 2025Allow5570YesNo
17076753FUEL CELL SYSTEMOctober 2020January 2023Allow2721NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner ROLDAN RAMOS, CHRISTIAN.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
6
Examiner Affirmed
4
(66.7%)
Examiner Reversed
2
(33.3%)
Reversal Percentile
49.6%
Lower than average

What This Means

With a 33.3% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
23
Allowed After Appeal Filing
8
(34.8%)
Not Allowed After Appeal Filing
15
(65.2%)
Filing Benefit Percentile
57.2%
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, 34.8% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

Strategic Recommendations

Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

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

Examiner ROLDAN RAMOS, CHRISTIAN - Prosecution Strategy Guide

Executive Summary

Examiner ROLDAN RAMOS, CHRISTIAN works in Art Unit 1723 and has examined 228 patent applications in our dataset. With an allowance rate of 67.5%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 41 months.

Allowance Patterns

Examiner ROLDAN RAMOS, CHRISTIAN's allowance rate of 67.5% places them in the 29% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by ROLDAN RAMOS, CHRISTIAN receive 3.10 office actions before reaching final disposition. This places the examiner in the 89% 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 ROLDAN RAMOS, CHRISTIAN is 41 months. This places the examiner in the 20% 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 +20.8% benefit to allowance rate for applications examined by ROLDAN RAMOS, CHRISTIAN. This interview benefit is in the 65% 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, 20.5% of applications are subsequently allowed. This success rate is in the 23% 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 27.7% of cases where such amendments are filed. This entry rate is in the 39% 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, 66.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 52% 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.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 73.9% of appeals filed. This is in the 62% percentile among all examiners. Of these withdrawals, 35.3% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.

Petition Practice

When applicants file petitions regarding this examiner's actions, 44.4% are granted (fully or in part). This grant rate is in the 37% 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 0.0% of allowed cases (in the 4% 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 1.3% of allowed cases (in the 63% 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:

  • 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.