USPTO Examiner CONTRERAS CIEL P - Art Unit 1794

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18750807METHODS AND APPARATUS FOR EXTRACTING METALS FROM MATERIALSJune 2024May 2025Allow1121NoNo
18598841ELECTROCHEMICAL HYDROGEN PUMPMarch 2024November 2024Allow810NoNo
18584503DIRECT AIR CAPTURE OF CARBON DIOXIDEFebruary 2024September 2024Allow711YesNo
18517216ELECTROPLATING SOLUTION FOR INDIUM-BISMUTH ALLOY FOR LOW-TEMPERATURE SOLDER WITH IMPROVED BISMUTH SUBSTITUTION PREVENTION PERFORMANCENovember 2023April 2024Allow510NoNo
18550629SYSTEM AND METHOD FOR CO2 CAPTURE AND ELECTROREGENERATION AND SYNCHRONOUS CONVERSIONSeptember 2023April 2024Allow710NoNo
18550400ELECTRODE MATERIAL, MEMBRANE ELECTRODE ASSEMBLY, CO2 ELECTROLYSIS DEVICE, AND METHOD FOR PRODUCING CO2 ELECTROLYSIS PRODUCTSeptember 2023June 2025Allow2120YesNo
18241167METHOD FOR ALKALIATING ELECTRODESAugust 2023December 2024Abandon1610NoNo
18453176Methods of Operating a Water ElectrolyzerAugust 2023March 2025Abandon1920NoNo
18273490An Electrolysis System with a Buffer TankJuly 2023November 2024Allow1610YesNo
18326119Filter Press End Assembly and Fluid Management System for use in Unipolar Electrochemical DevicesMay 2023July 2024Allow1410YesNo
18142033Energy Efficient Precision Manufactured Critical Surface Guided Liquid-to-gas Conversion MethodMay 2023October 2024Allow1721YesNo
18299672REACTOR WITH ADVANCED ARCHITECTURE FOR THE ELECTROCHEMICAL REACTION OF CO2, CO AND OTHER CHEMICAL COMPOUNDSApril 2023January 2025Allow2120YesNo
18175782Water-in-salt Electrolyte for Electrochemical Redox ReactionsFebruary 2023June 2024Allow1611NoNo
18111141ELECTROLYZED WATER GENERATORFebruary 2023March 2025Allow2520NoNo
18107622ELECTROCHEMICAL CELL AND METHOD OF PRODUCING CARBONYL COMPOUNDFebruary 2023March 2025Allow2531NoNo
18005371ELECTROCHEMICAL CELL FOR CARBON DIOXIDE REDUCTION TOWARDS LIQUID CHEMICALSJanuary 2023April 2025Allow2721YesNo
18088294ELECTROLYSIS CELL ASSEMBLY UTILIZING AN ANION EXCHANGE MEMBRANEDecember 2022April 2025Allow2821YesNo
17993277MATRIX-CONTROLLED PRINTHEAD FOR AN ELECTROCHEMICAL ADDITIVE MANUFACTURING SYSTEMNovember 2022March 2024Allow1610NoNo
17991731ENVIRONMENT CONTROL SYSTEM UTILIZING AN ELECTROCHEMICAL CELLNovember 2022May 2024Allow1810YesNo
17989916SEPARATOR MEMBRANE-GASKET-PROTECTING MEMBER ASSEMBLY, ELECTROLYSIS ELEMENT, AND ELECTROLYSIS VESSELNovember 2022January 2025Allow2620YesNo
17987217MEMBRANE-ELECTRODE-GASKET ASSEMBLY FOR ALKALINE WATER ELECTROLYSISNovember 2022August 2024Allow2111NoNo
17919257METHOD FOR FASTENING AN ELECTRODEOctober 2022July 2025Allow3300NoNo
17918061Carbon Dioxide Gas-Phase Reduction Device and Method for Producing Porous Electrode-Supported Electrolyte MembraneOctober 2022June 2025Abandon3211NoNo
17881114ELECTROCHEMICAL REACTION DEVICEAugust 2022January 2024Allow1700NoNo
17863272METHOD FOR MANUFACTURING AN ELECTROCHEMICAL DEPOSITION PRINTHEAD WITH GRID CONTROL CIRCUIT AND BACKPLANEJuly 2022April 2024Allow2101NoNo
17792079PLATING APPARATUSJuly 2022May 2025Allow3400NoNo
17858464ORGANIC HYDRIDE PRODUCTION DEVICEJuly 2022December 2024Abandon2920NoNo
17858786FILTER PRESS END ASSEMBLY AND FLUID MANAGEMENT SYSTEM FOR USE IN UNIPOLAR ELECTROCHEMICAL DEVICESJuly 2022March 2023Allow810YesNo
17836449PRODUCT SELECTIVITY FOR CO2 REDUCTIONJune 2022May 2024Allow2310NoNo
17834470LIQUID METAL CATHODES FOR ELECTROLYSIS OF METAL CARBONATES IN MOLTEN SALTSJune 2022February 2025Allow3201NoNo
17829732METHOD FOR ALKALIATING ELECTRODESJune 2022October 2023Abandon1610NoNo
17780377DISTRIBUTION SYSTEM FOR A PROCESS FLUID FOR CHEMICAL AND/OR ELECTROLYTIC SURFACE TREATMENT OF A SUBSTRATEMay 2022July 2025Allow3720YesNo
17825841METHOD AND APPARATUS FOR PRODUCING CHLORINE GAS IN AN ELECTROLYTIC CELLMay 2022March 2025Allow3411YesNo
17749407APPARATUS, SYSTEM AND METHOD FOR MAKING CARBANOGEL BUCKYPAPER FROM CARBON DIOXIDE AND PRODUCTS THEREOFMay 2022March 2023Allow1011NoNo
17746275ELECTROLYZER SYSTEM WITH STEAM GENERATION AND METHOD OF OPERATING SAMEMay 2022April 2025Allow3511NoNo
17735943SYSTEMS AND METHODS FOR CAPTURING CARBON DIOXIDE AND REGENERATING A CAPTURE SOLUTIONMay 2022May 2025Allow3611NoNo
17734341SUSTAINABLE, FACILE SEPARATION OF THE MOLTEN CARBONATE ELECTROLYSIS CATHODE PRODUCTMay 2022February 2024Allow2130NoNo
17722879POWDER SUPPLY APPARATUS AND PLATING SYSTEMApril 2022June 2024Allow2610NoNo
17659238SYSTEMS AND METHODS TO MAKE HYDROGEN GAS USING METAL SALTApril 2022September 2024Abandon2941NoNo
17718311BIPOLAR PLATE FOR LOW PRESSURE FEED ELECTRODE OPERATIONApril 2022December 2024Abandon3210NoNo
17716573ELECTROLYSIS ARRANGEMENT FOR ALKALINE ELECTROLYSISApril 2022May 2025Allow3810NoNo
17642558A SYSTEM AND A METHOD FOR ALKALINE WATER ELECTROLYSISMarch 2022March 2025Allow3621YesNo
17684891ELECTROCHEMICAL CONVERSION OF CARBON DIOXIDEMarch 2022March 2025Allow3711YesNo
17639066A COMPACT HYDROGEN-OXYGEN GENERATORFebruary 2022March 2025Allow3610NoNo
17637937ELECTROLYTIC UNITFebruary 2022April 2025Allow3720NoNo
17674603SENSOR CONTROL OF ELECTROCHEMICAL ACTIVATIONFebruary 2022March 2025Abandon3711NoNo
17567505CARBON DIOXIDE ENVIRONMENTAL CONTROL SYSTEMJanuary 2022June 2024Abandon2910NoNo
17566546MATRIX-CONTROLLED PRINTHEAD FOR AN ELECTROCHEMICAL ADDITIVE MANUFACTURING SYSTEMDecember 2021July 2022Allow720YesNo
17554229REMOVAL OF MATERIALS FROM WATERDecember 2021March 2025Allow3920NoNo
17617135PLATING APPARATUSDecember 2021August 2024Allow3200NoNo
17616811ANODE HOLDER, AND PLATING APPARATUSDecember 2021May 2025Allow4120NoNo
17616484ELECTRODE ASSEMBLY FOR ELECTROCHEMICAL PROCESSES AND METHOD OF RESTORING THE SAMEDecember 2021August 2024Allow3201YesNo
17539815SYSTEM FOR PRODUCING AND REGULATING THE PRODUCTION AND DISTRIBUTION OF HYDROGEN FROM AN ELECTROLYZER AND NON-ELECTROLYZER SOURCEDecember 2021December 2024Abandon3611NoNo
17535615COMPRESSION APPARATUSNovember 2021March 2025Abandon3910NoNo
17535485NON-OFFSET MATRIX-CONTROLLED PRINTHEAD FOR AN ELECTROCHEMICAL ADDITIVE MANUFACTURING SYSTEMNovember 2021March 2022Allow310NoNo
17535469MATRIX-CONTROLLED PRINTHEAD GRID CONTROL FOR AN ELECTROCHEMICAL ADDITIVE MANUFACTURING SYSTEMNovember 2021March 2022Allow410NoNo
17535134ELECTROLYSIS SYSTEM AND METHOD FOR A HIGH ELECTRICAL ENERGY TRANSFORMATION RATENovember 2021January 2025Abandon3810NoNo
17529801HYDROGEN TRANSPORT, DISTRIBUTION AND STORAGE SYSTEM, METHOD AND APPARATUSNovember 2021May 2022Allow611NoNo
17520709METHOD FOR OPERATING APPARATUS FOR PRODUCING ALKALI HYDROXIDENovember 2021December 2023Allow2500YesNo
17608773GREEN PRODUCTION PROCESS FOR IODATENovember 2021August 2024Allow3310YesNo
17594907REACTOR FOR GAS PRODUCTIONNovember 2021September 2024Abandon3410NoNo
17511020COMPOSITE ELECTRODES AND METHODS FOR THE FABRICATION AND USE THEREOFOctober 2021December 2023Allow2500NoNo
17606043PLANT CONTROL METHOD, PLANT CONTROL DEVICE, PROGRAM, AND PLANTOctober 2021December 2022Allow1411YesNo
17603740Portable Hydrogen-Water Mist SprayerOctober 2021May 2024Allow3110NoNo
17476205METHOD AND SYSTEM FOR CO2 EMISSION REDUCTION IN THE PRODUCTION OF CHEMICAL COMPOUNDSSeptember 2021March 2025Allow4211NoNo
17439290METHOD FOR PURIFYING GAS FORMED BY ELECTROLYSIS, AND ELECTROLYTIC APPARATUSSeptember 2021November 2024Allow3811NoNo
17473595ADVANCED SYSTEM FOR ELECTROCHEMICAL CELLSeptember 2021August 2024Allow3510NoNo
17593221Dual Gas Flow Device Provided with Cooling FunctionalitySeptember 2021July 2022Allow1010NoNo
17471593CARBON DIOXIDE EXTRACTION ELECTROLYSIS REACTORSeptember 2021October 2023Abandon2541YesNo
17469734FILTER PRESS END ASSEMBLY AND FLUID MANAGEMENT SYSTEM FOR USE IN UNIPOLAR ELECTROCHEMICAL DEVICESSeptember 2021May 2022Allow820YesNo
17433613METHOD FOR ELECTROCHEMICAL EXTRACTION OF URANIUM FROM SEAWATER USING OXYGEN VACANCY (OV)-CONTAINING METAL OXIDEAugust 2021April 2022Allow710NoNo
17369952REACTOR WITH ADVANCED ARCHITECTURE FOR THE ELECTROCHEMICAL REACTION OF CO2, CO, AND OTHER CHEMICAL COMPOUNDSJuly 2021January 2025Abandon4230YesNo
17364818Electrolysis Electrode StructureJune 2021March 2022Allow820YesNo
17336559Reactant Flow Channels For Electrolyzer ApplicationsJune 2021October 2024Allow4001NoNo
17296709ELECTROCHEMICAL REACTOR AND ITS CLEANING OR REGENERATIONMay 2021July 2024Allow3820NoNo
17296785BY-PRODUCTS (IMPURITY) REMOVALMay 2021February 2023Allow2111YesNo
17296039Solid-State Electro-Chemical CompressorMay 2021February 2023Abandon2120YesNo
17292331Carbon Dioxide Gas-Phase Reduction Device and Carbon Dioxide Gas-Phase Reduction MethodMay 2021October 2023Abandon2931NoNo
17289738NEW ELECTRO-CHEMICAL PROCESS BASED ON A DIMENSIONLESS FACTORApril 2021June 2024Abandon3810NoNo
17243499ELECTROCHEMICAL SYSTEM, APPARATUS AND METHOD TO GENERATE METAL HYDROXIDE IN THE PRESENCE OF METAL SILICATESApril 2021January 2025Allow4541NoNo
17223931FLOW CELL DECONTAMINATIONApril 2021August 2022Allow1711YesNo
17222553Water Electrolyzers Employing Anion Exchange MembranesApril 2021February 2022Allow1130YesNo
17279670FLUORINE GAS PRODUCTION DEVICEMarch 2021August 2024Allow4120NoNo
17209322ELECTROLYSIS ARRANGEMENTMarch 2021January 2023Allow2111YesNo
17204959PREPARING FE/NI-FREE ALKALI METAL HYDROXIDE ELECTROLYTESMarch 2021June 2024Abandon3910NoNo
17199531SUSTAINABLE, FACILE SEPARATION OF THE MOLTEN CARBONATE ELECTROLYSIS CATHODE PRODUCTMarch 2021January 2024Abandon3441NoNo
17272654ULTRASOUND-ELECTRODE-NANO-POROUS MEMBRANE COUPLING HYDROGEN PRODUCTION AND STERILIZATION SYSTEMMarch 2021February 2024Allow3510NoNo
17249343REMOVAL OF MATERIALS FROM WATERFebruary 2021November 2021Allow921YesNo
17264505METAL SULFATE MANUFACTURING SYSTEM VIA ELECTROCHEMICAL DISSOLUTIONJanuary 2021September 2024Allow4441YesNo
17259306METHOD FOR PRODUCING MAGNESIUM AND CHLORINE AND ELECTROLYTIC CELL FOR IMPLEMENTING SAMEJanuary 2021February 2022Abandon1310NoNo
17259043Hydrogen Generating DeviceJanuary 2021July 2024Abandon4331NoNo
17126652Systems and Methods for Concentrating IonsDecember 2020July 2024Abandon4331NoNo
17120166HYPOCHLOROUS ACID REFILL GENERATOR METHOD AND DEVICESDecember 2020May 2025Abandon5321NoNo
17108008HYDROGEN SYSTEM AND METHOD OF OPERATING HYDROGEN SYSTEMDecember 2020March 2022Abandon1611NoNo
16953195HYDROGEN SYSTEMNovember 2020September 2024Allow4620YesNo
17099602TWO PART 3D METAL PRINTHEAD ASSEMBLY METHOD OF MANUFACTURENovember 2020April 2022Allow1710NoNo
17093771HYDROGEN TRANSPORT, DISTRIBUTION AND STORAGE SYSTEM, METHOD AND APPARATUSNovember 2020October 2021Allow1111YesNo
16949538REACTOR WITH ADVANCED ARCHITECTURE FOR THE ELECTROCHEMICAL REACTION OF CO2, CO AND OTHER CHEMICAL COMPOUNDSNovember 2020March 2023Allow2810NoNo
17038812ELECTRODE FOR OXYGEN EVOLVING, METHOD OF PREPARING THE ELECTRODE, AND OXYGEN GENERATING DEVICE INCLUDING THE ELECTRODESeptember 2020October 2024Abandon4941NoNo
17033927ELECTROLYZED OZONE WATER GENERATOR COMPOSED OF COATED TITANIUM ANODESSeptember 2020October 2022Abandon2410NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CONTRERAS, CIEL P.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
5
Examiner Affirmed
3
(60.0%)
Examiner Reversed
2
(40.0%)
Reversal Percentile
60.4%
Higher than average

What This Means

With a 40.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
10
Allowed After Appeal Filing
2
(20.0%)
Not Allowed After Appeal Filing
8
(80.0%)
Filing Benefit Percentile
21.6%
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, 20.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

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 CONTRERAS, CIEL P - Prosecution Strategy Guide

Executive Summary

Examiner CONTRERAS, CIEL P works in Art Unit 1794 and has examined 414 patent applications in our dataset. With an allowance rate of 66.4%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 30 months.

Allowance Patterns

Examiner CONTRERAS, CIEL P's allowance rate of 66.4% places them in the 20% percentile among all USPTO examiners. This examiner is less likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by CONTRERAS, CIEL P receive 2.01 office actions before reaching final disposition. This places the examiner in the 66% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CONTRERAS, CIEL P is 30 months. This places the examiner in the 40% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +27.9% benefit to allowance rate for applications examined by CONTRERAS, CIEL P. This interview benefit is in the 79% percentile among all examiners. Recommendation: Interviews are highly effective with this examiner and should be strongly considered as a prosecution strategy. Per MPEP § 713.10, interviews are available at any time before the Notice of Allowance is mailed or jurisdiction transfers to the PTAB.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 24.0% of applications are subsequently allowed. This success rate is in the 25% 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 49.4% of cases where such amendments are filed. This entry rate is in the 69% percentile among all examiners. Strategic Recommendation: This examiner shows above-average receptiveness to after-final amendments. If your amendments clearly overcome the rejections and do not raise new issues, consider filing after-final amendments before resorting to an RCE.

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 4% 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 37.5% of appeals filed. This is in the 4% percentile among all examiners. Of these withdrawals, 66.7% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 45.1% are granted (fully or in part). This grant rate is in the 50% 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 7% 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 1.5% of allowed cases (in the 61% 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:

  • Prepare for rigorous examination: With a below-average allowance rate, ensure your application has strong written description and enablement support. Consider filing a continuation if you need to add new matter.
  • Prioritize examiner interviews: Interviews are highly effective with this examiner. Request an interview after the first office action to clarify issues and potentially expedite allowance.

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.