USPTO Examiner RIVERA PEREZ CARLOS O - Art Unit 2838

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18677768Method and system for entering and exiting a frequency clamp mode for variable frequency, offline switch-mode power convertersMay 2024February 2026Allow2110NoNo
18636441Control Device and Method For Controlling Switches Based on A Voltage ValueApril 2024March 2026Allow2320NoNo
18530486LOW-DROPOUT VOLTAGE REGULATION DEVICE HAVING COMPENSATION CIRCUIT TO COMPENSATE FOR VOLTAGE OVERSHOOTS AND UNDERSHOOTS WHEN CHANGING BETWEEN ACTIVITY MODE AND STANDBY MODEDecember 2023March 2025Allow1520NoNo
18387742Apparatus and Method for Reducing Stand-by Power Consumption in Isolated Power Conversion SystemNovember 2023December 2025Allow2510NoNo
18497514SYSTEMS AND METHODS FOR INTEGRATED HIGH VOLTAGE AND LOW VOLTAGE CONVERTER FOR BIDIRECTIONAL ONBOARD BATTERY CHARGEROctober 2023March 2026Allow2820NoNo
18384547Dynamic Current RectifierOctober 2023January 2026Allow2710YesNo
18495934CONTROLLER WITH AVERAGE CURRENT BALANCING CIRCUITOctober 2023August 2025Allow2210NoNo
18469822SEMICONDUCTOR DEVICE, REGULATOR CIRCUIT, AND METHOD FOR STARTING REGULATOR CIRCUITSeptember 2023January 2026Abandon2810NoNo
18469502Advanced Phase-Leg Short-Circuit Protection for Third-Generation SemiconductorsSeptember 2023May 2025Abandon2020NoNo
18236988SEMICONDUCTOR MODULEAugust 2023December 2025Abandon2810NoNo
18453904POWER CONVERTER EFFICIENCY BOOST AT LOW LOADS, KEEPING MAXIMUM CONSTANT SWITCHING FREQUENCY OPERATION RANGEAugust 2023November 2025Allow2710YesNo
18341419DEAD-TIME CALIBRATION SCHEME FOR ACTIVE CLAMP FLYBACK (ACF) PRIMARY FIELD-EFFECT TRANSISTORS (FET)June 2023October 2025Allow2800NoNo
18265946POWER SUPPLY SYSTEM AND SOLAR PHOTOVOLTAIC INVERTERJune 2023September 2025Allow2810NoNo
18265146CONVERTER ARRANGEMENT AND METHOD FOR OPERATING A CONVERTER ARRANGEMENTJune 2023January 2026Allow3220NoNo
18322355BANDGAP REFERENCE CIRCUIT USING HETEROGENEOUS POWER AND ELECTRONIC DEVICE HAVING THE SAMEMay 2023April 2025Allow2310YesNo
18196667SYSTEMS AND METHODS FOR DRIVING BIPOLAR TRANSISTORS RELATED TO POWER CONVERTERSMay 2023February 2026Allow3310YesNo
18252562POWER CONVERSION DEVICE AND METHOD OF CONTROLLING POWER CONVERSION DEVICEMay 2023October 2025Allow2910NoNo
18195353CONTROL CIRCUIT AND CONTROL METHOD FOR MULTIPHASE POWER SUPPLY AND MULTIPHASE POWER SUPPLYMay 2023December 2025Allow3110NoNo
18246878FAULT-TOLERANT DC-AC ELECTRIC POWER CONVERSION DEVICEMarch 2023December 2025Abandon3320NoNo
18028935CURRENT LIMITER, METHOD OF OPERATING THE SAME, AND HOTSWAP MODULEMarch 2023January 2026Allow3410NoNo
18125413CONTROLLER FOR AN ASYMMETRIC HALF BRIDGE FLYBACK CONVERTER,ASYMMETRIC HALF BRIDGE FLYBACK CONVERTER AND A METHOD OF CONTROLLING AN ASYMMETRIC HALF BRIDGE FLYBACK CONVERTERMarch 2023January 2026Allow3420YesNo
18183176VOLTAGE REGULATION CIRCUIT, DEVICE, AND METHODMarch 2023November 2025Allow3210NoNo
18041946POWER SUPPLY DEVICE COMPRISING A PLURALITY OF SEMICONDUCTOR SWITCHES AND A MECHANICAL SWITCH CONNECTED IN SERIESFebruary 2023August 2025Allow3020YesNo
18108345SWITCHING POWER CONVERTER AND CONTROLLER FOR A SWITCHING POWER CONVERTERFebruary 2023June 2025Allow2800NoNo
18166984SEMICONDUCTOR DEVICE INCLUDING IGBT AND MOSFETFebruary 2023June 2025Allow2820YesNo
18162789POWER SUPPLY DEVICE WITH HIGH OUTPUT STABILITYFebruary 2023September 2025Allow3210NoNo
18162287MULTI-LEVEL BUCK CONVERTER AND ASSOCIATE CONTROL CIRCUIT THEREOFJanuary 2023February 2025Allow2500NoNo
18101550VAPORIZER POWER SYSTEMJanuary 2023August 2024Allow1920NoNo
18158503POWER CONVERSION APPARATUS INCLUDING UPPER AND LOWER ARM CIRCUITS AND A FLYING CAPACITORJanuary 2023July 2025Allow3020NoNo
18099606CAPACITOR CONVERTERJanuary 2023December 2025Allow3520YesNo
18002067CELL ASSEMBLY AND CONVERTER COMPRISING A PLURALITY OF ARMS, EACH HAVING SUCH A CELL ASSEMBLYDecember 2022May 2025Allow2920YesNo
18066708DRIVER STAGE WITH AN INTERMEDIATE CIRCUITDecember 2022February 2025Allow2620NoNo
18079837VOLTAGE REGULATOR TO PREVENT VOLTAGE DROP IN REGULATED VOLTAGE FOR DOUBLE DATA READ PHYSICAL INTERFACEDecember 2022April 2025Allow2820NoNo
18074200POWER SUPPLY DEVICE AND OPERATING METHOD THEREOFDecember 2022January 2026Allow3830NoNo
17927893GATE DRIVING CIRCUIT FOR POWER SEMICONDUCTOR ELEMENTNovember 2022February 2025Allow2710NoNo
17983919PARTIALLY BOOTSTRAPPED GATE DRIVING CIRCUIT FOR REDUCING SWITCHING LOSS AND CONTROL METHOD THEREOFNovember 2022August 2025Allow3310NoNo
17983342SWITCHING MODE POWER SUPPLY WITH IMPROVED POWER BALANCE AND THE METHOD THEREOFNovember 2022July 2025Allow3230NoNo
18053036SWITCH MODE POWER CONVERTER WITH SYNCHRONOUS RECTIFIER IMPLEMENTING ADAPTIVE TURN-OFF VOLTAGENovember 2022April 2025Allow2900NoNo
17963534CURRENT SENSING CIRCUIT AND CORRESPONDING DC-DC CONVERTEROctober 2022December 2024Allow2610NoNo
17961264Trans-Inductor Voltage Regulator For High Bandwidth Power DeliveryOctober 2022July 2025Allow3430NoNo
17960712Reduced Gate Drive for Power Converter with Dynamically Switching RatioOctober 2022August 2024Allow2220NoNo
17957877POWER CONVERTER FOR ENABLING SIMULTANEOUS TRANSMISSION OF POWER BETWEEN MULTIPLE VOLTAGE PARTSSeptember 2022February 2025Allow2810YesNo
17944256Voltage Adjustment Apparatus, Chip, Power Source, and Electronic DeviceSeptember 2022January 2025Allow2820NoNo
17943693Method and a Device for Compensating a Faulty Switch in a Multi-Level Flying Capacitor ConverterSeptember 2022February 2025Allow2920NoNo
17822852SYNCHRONOUS RECTIFICATION CONTROL IN LLC TOPOLOGYAugust 2022May 2025Allow3220YesNo
17905160POWER CONVERSION DEVICEAugust 2022July 2025Abandon3410NoNo
17896132Frequency Converter with Ground Fault DetectionAugust 2022March 2025Allow3130YesNo
17894003MULTI-LEVEL GATE DRIVERAugust 2022October 2025Allow3830NoNo
17815948ISOLATED CONVERTER FOR REDUCING CROSS-PRESSURE ACROSS SWITCHESJuly 2022June 2025Abandon3540NoNo
17872387INTERLEAVED PHASE CURRENT BALANCINGJuly 2022November 2024Allow2810NoNo
17866806TWO-STAGE ELECTRICAL CONTROLLING SYSTEM AND ELECTRICAL APPARATUSJuly 2022August 2025Allow3730YesNo
17792508PROCESSING METHOD FOR PREVENTING ELECTROMAGNETIC INDUCTION WHEN MAIN SYSTEM AND STANDBY SYSTEM OF SAFETY DRIVE UNIT CO-DRIVE RELAYJuly 2022December 2024Allow2910NoNo
17860191METHOD AND SYSTEM FOR MODIFYING CARRIER SIGNALS DURING PHASE-SHIFTED PULSE WIDTH MODULATIONJuly 2022December 2025Allow4141NoNo
17858149CONSTANT TIME BUCK-BOOST SWITCHING CONVERTER AND MODULATION CONTROL CIRCUIT AND CONTROL METHOD THEREOFJuly 2022February 2025Allow3110NoNo
17809900POWER SUPPLY UNIT AND LOOP POWER SUPPLY SYSTEMJune 2022September 2025Abandon3840NoNo
17809768Low Dropout Regulator and Control MethodJune 2022September 2024Allow2720YesNo
17833966FEEDFORWARD COMPENSATION FOR LLC RESONANT CONVERTERSJune 2022October 2024Allow2830NoNo
17824501INTEGRATED CIRCUIT HAVING SWITCHING CONTROL AND POWER SUPPLY CIRCUIT INCLUDING THE SAMEMay 2022November 2024Allow3010YesNo
17752608CONFIGURABLE AC INPUT/DC INPUT POWER SUPPLY SYSTEMMay 2022August 2025Allow3830YesNo
17728856POWER FACTOR CORRECTION SYSTEMApril 2022August 2024Allow2710NoNo
17725743CIRCUIT ARRANGEMENT FOR A CURRENT CONVERTERApril 2022March 2025Allow3540NoNo
17705656CIRCUIT FOR PREVENTING LATCH-UP AND INTEGRATED CIRCUITMarch 2022October 2024Allow3110NoNo
17701996SETTING A STABLE OPERATING POINT AND EMI CONTROL OF AN H-BRIDGE OUTPUT STAGEMarch 2022January 2025Allow3420NoYes
17698893FAULT-RESPONSIVE POWER SYSTEM AND METHOD USING ASYNCHRONOUS LOAD CURRENT SWITCHINGMarch 2022March 2025Allow3620YesNo
17695003ELECTRONIC DEVICE INCLUDING BOOST CIRCUITMarch 2022June 2025Allow4040YesNo
17694182DISCHARGE CIRCUIT AND METHOD FOR VOLTAGE TRANSITION MANAGEMENTMarch 2022July 2024Allow2810NoNo
17637152PRODUCING A MOTOR VOLTAGE FOR A SWITCH DRIVEFebruary 2022January 2025Allow3520NoNo
17671163CONTROL CIRCUIT FOR CONTROLLING A SWITCHING STAGE OF AN ELECTRONIC CONVERTER, CORRESPONDING ELECTRONIC CONVERTER DEVICE AND METHODFebruary 2022September 2024Allow3120NoNo
17570644Power Supply Control Device for Wide Range Input VoltageJanuary 2022October 2024Allow3420NoNo
17567080REMOTE CURRENT SENSE COMPENSATION IN MULTIPHASE VOLTAGE REGULATORSDecember 2021April 2025Allow3920YesNo
17552310PARALLEL INPUT AND DYNAMIC CASCADED OPERATIONAL TRANSCONDUCTANCE AMPLIFIER ACHIEVING HIGH PRECISION WITH PHASE SHIFTINGDecember 2021August 2024Allow3210NoNo
17596242CONSTANT VOLTAGE GENERATOR CIRCUIT OPERATING AT LOW VOLTAGE POTENTIAL DIFFERENCE BETWEEN INPUT VOLTAGE AND OUTPUT VOLTAGEDecember 2021October 2024Allow3410NoNo
17613377Method for Operating a Power Electronic Converter, and Power Electronic ConverterNovember 2021January 2025Allow3820NoNo
17611423OVERCURRENT PROTECTION DEVICE FOR PROTECTING A CONSUMER ARRANGED IN A DC GRIDNovember 2021July 2024Allow3210NoNo
17484846ACTIVE VOLTAGE BUS SYSTEM AND METHODSeptember 2021December 2024Allow3830NoNo
17426155POWER CONVERSION DEVICE AND ELECTRIC POWER STEERING DEVICEJuly 2021August 2024Allow3620NoNo
17132407CARRIER FOR MICROELECTRONIC ASSEMBLIES HAVING DIRECT BONDINGDecember 2020March 2025Abandon5120NoNo
16988379CONTROL DEVICE FOR A SWITCHING VOLTAGE REGULATOR AND CONTROL METHODAugust 2020September 2024Allow5050NoNo
16330723DC-DC CONVERTER AND TWO-STAGE POWER CONVERTER INCLUDING THE SAMEMarch 2019March 2020Abandon1310NoNo
16166471COMPARATOR CIRCUIT, POWER SUPPLY CONTROL IC, AND SWITCHING POWER SUPPLY DEVICEOctober 2018July 2019Allow900NoNo
16106340METHOD AND APPARATUS FOR REGULATING THE VOLTAGE OF A TRANSFORMER SYSTEMAugust 2018October 2019Allow1410NoNo
16100455ISOLATED SYNCHRONOUS RECTIFICATION-TYPE DC/DC CONVERTERAugust 2018February 2020Abandon1920NoNo
16016805AUXILIARY POWER SUPPLY FOR SWITCH-MODE POWER SUPPLIESJune 2018September 2019Allow1520YesNo
15944833VOLTAGE CONVERSION AND CHARGING FROM LOW BIPOLAR INPUT VOLTAGEApril 2018September 2019Allow1720YesYes
15889683PHASE ADJUSTING CIRCUIT, INVERTER CIRCUIT, AND POWER SUPPLY SYSTEMFebruary 2018June 2019Allow1620NoNo
15859005ISOLATED DC-DC CONVERTERDecember 2017November 2019Allow2220YesYes
15859145ISOLATED DC-DC CONVERTERDecember 2017November 2019Allow2330YesNo
15735987POWER CONVERTERDecember 2017November 2019Allow2330YesNo
15831213SINGLE STAGE SWITCHING POWER CONVERTER WITH IMPROVED PRIMARY ONLY FEEDBACKDecember 2017March 2018Allow300NoNo
15817445Power Supply Switch with Programmable Switching DecisionNovember 2017August 2019Allow2020YesNo
15805145VOLTAGE REGULATOR WITH PERFORMANCE COMPENSATIONNovember 2017May 2019Allow1810NoNo
15805645METHOD FOR CONTROLLING AT LEAST TWO THREE-PHASE POWER CONVERTERS WITH ASYNCHRONOUS PULSE-WIDTH MODULATIONNovember 2017June 2019Allow2010NoNo
15782235METHODS AND SYSTEM FOR OPERATING A VARIABLE VOLTAGE CONTROLLEROctober 2017January 2020Allow2740YesNo
15721985ANALOG ASSISTED DIGITAL SWITCH REGULATOROctober 2017February 2019Allow1640NoNo
15714935BANDGAP WITH SYSTEM SLEEP MODESeptember 2017August 2019Allow2330YesNo
15706135CIRCUIT FOR CONTROLLING A POWER SUPPLY AND METHOD OF OPERATION THEREOFSeptember 2017November 2019Abandon2621NoNo
15558885POWER CONVERTER CONTROL DEVICESeptember 2017March 2018Allow600NoNo
15694135SCALABLE UNIVERSAL SPACE VECTOR PULSE WIDTH MODULATION SCHEME FOR MULTILEVEL INVERTERSSeptember 2017September 2019Allow2520YesNo
15679203SEMICONDUCTOR DEVICEAugust 2017September 2019Allow2530YesNo
15676445CLAMP VOLTAGE DETECTION AND OVER-VOLTAGE PROTECTION FOR POWER SUPPLY TOPOLOGIESAugust 2017September 2018Allow1310YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner RIVERA-PEREZ, CARLOS O.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
4
Examiner Affirmed
0
(0.0%)
Examiner Reversed
4
(100.0%)
Reversal Percentile
95.1%
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
18
Allowed After Appeal Filing
9
(50.0%)
Not Allowed After Appeal Filing
9
(50.0%)
Filing Benefit Percentile
80.5%
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, 50.0% 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.

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

Examiner RIVERA-PEREZ, CARLOS O - Prosecution Strategy Guide

Executive Summary

Examiner RIVERA-PEREZ, CARLOS O works in Art Unit 2838 and has examined 272 patent applications in our dataset. With an allowance rate of 64.0%, 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 RIVERA-PEREZ, CARLOS O's allowance rate of 64.0% places them in the 24% 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 RIVERA-PEREZ, CARLOS O receive 2.34 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 RIVERA-PEREZ, CARLOS O is 30 months. This places the examiner in the 61% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +20.9% benefit to allowance rate for applications examined by RIVERA-PEREZ, CARLOS O. 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, 24.5% of applications are subsequently allowed. This success rate is in the 36% 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 26.6% of cases where such amendments are filed. This entry rate is in the 37% 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, 42.9% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 39% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 77.8% of appeals filed. This is in the 69% percentile among all examiners. Of these withdrawals, 50.0% 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, 82.4% are granted (fully or in part). This grant rate is in the 85% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 25% 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 2.3% of allowed cases (in the 70% 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.

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.