USPTO Examiner DEMISSE AFEWORK S - Art Unit 2838

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18678327Compact High-Power DC-to-DC Converters with Out-of-Phase Converter Units and Multiple Cooling TypesMay 2024December 2024Allow600NoNo
18605047SWITCH-MODE POWER CONVERTERS WITH DEMAGNETIZATION DETECTION AND METHODS THEREOFMarch 2024December 2025Allow2100YesNo
18591723VOLTAGE CONVERTER WITH REGULATED SWITCHING FREQUENCY AND MINIMUM ON TIME OVERRIDEFebruary 2024November 2025Allow2100YesNo
18582018Buck Converter Continuous Conduction OperationFebruary 2024October 2025Allow2000NoNo
18682393METHOD FOR OPERATING A POWER CONVERTER AND POWER CONVERTERFebruary 2024October 2025Allow2000NoNo
18409086SYSTEMS AND METHODS FOR PHOTOVOLTAIC DIRECT CURRENT (DC) BUS CONTROLJanuary 2024February 2025Allow1300NoNo
18405753ENERGY STORAGE CIRCUIT AND CONTROL METHOD THEREOFJanuary 2024September 2025Allow2000NoNo
18402760ACTIVE CURRENT COMPENSATION DEVICE CAPABLE OF DETECTING MALFUNCTIONJanuary 2024August 2024Allow700NoNo
18571750SWITCH UNITDecember 2023September 2025Allow2100NoNo
18500308ELECTROSTATIC CHUCKNovember 2023August 2024Allow900NoNo
18499039SECONDARY SIDE CONTROLLED FLYBACK CONVERTER WITH ACCURATE FEED-FORWARD SENSINGOctober 2023August 2025Allow2200NoNo
18489639THREE-LEVEL BUCK CONVERTER CONFIGURABLE FOR TWO-LEVEL BUCK CONVERTER MODE OPERATIONOctober 2023October 2024Allow1210NoNo
18374075INSTRUMENTATION AMPLIFIER AND RELATED APPARATUSSeptember 2023August 2024Allow1100YesNo
18475642REVERSIBLE COOLING APPARATUS FOR SYSTEMS WITH VARIABLE HEAT DISTRIBUTIONSeptember 2023July 2025Allow2100NoNo
18371971HYBRID CIRCUIT BREAKER AND PRE-CHARGE CONTROL METHODSeptember 2023September 2025Allow2410NoNo
18472852LLC CONVERTER WITH PROTECTION CIRCUITSeptember 2023June 2025Allow2100YesNo
18471331SWITCHING REGULATOR AND OPERATION CLOCK SIGNAL GENERATOR CIRCUIT AND CONTROL METHOD THEREOFSeptember 2023June 2025Allow2100NoNo
18471868Decoupling Device Using Stored Charge Reverse RecoverySeptember 2023August 2024Allow1100NoNo
18469750BUCK-BOOST BASED HIGH LINEARITY DRIVER WITH SEPARATELY CONTROLLABLE DUTY CYCLE FOR ENERGIZING AND DE-ENERGIZING PHASESSeptember 2023June 2025Allow2100NoNo
18468619COMPACT HIGH-POWER DC-TO-DC CONVERTERS WITH OUT-OF-PHASE CONVERTER UNITS AND MULTIPLE COOLING TYPESSeptember 2023February 2024Allow510NoNo
18461968ADAPTIVE MINIMUM DUTY CYCLE DESIGN TO EXTEND OPERATIONAL VOLTAGE RANGE FOR DCDC CONVERTERSSeptember 2023May 2024Allow800YesNo
18461979INPUT ISOLATED VOLTAGE MONITOR WITH VOLTAGE TRACKINGSeptember 2023June 2025Allow2100NoNo
18240734Bias Generation for Bridge Driver Load Current SensingAugust 2023May 2025Allow2100NoNo
18240459TIME MODULATION FOR DC-DC ANALOG CURRENT SENSINGAugust 2023May 2025Allow2100NoNo
18240861CONTROL CIRCUIT, SYSTEM AND METHOD FOR SWITCHED-MODE POWER SUPPLYAugust 2023January 2025Allow1600NoNo
18455138MULTI-PHASE VOLTAGE REGULATOR CONTROLAugust 2023June 2024Allow910NoNo
18226597CIRCUITRY AND METHODS FOR MONITORING POWER CONVERSION CIRCUITRYJuly 2023September 2025Allow2510YesNo
18359548VOLTAGE CONVERTER AND METHODJuly 2023February 2024Allow700NoNo
18224744HIGH-BANDWIDTH FACTORIZED POWER SYSTEM AND REGULATORJuly 2023April 2025Allow2100NoNo
18350224DYNAMIC TOTAL CURRENT CONTROL FOR A VOLTAGE REGULATORJuly 2023April 2025Allow2100NoNo
18219200DEVICE AND METHOD OF CONTROLLING THE SAMEJuly 2023June 2025Allow2300NoNo
18212631INVERTER ASSEMBLYJune 2023April 2025Allow2100YesNo
18258597CIRCUIT BREAKER DEVICE AND METHODJune 2023October 2024Allow1600NoNo
18337569CONFIGURABLE MODULAR HAZARDOUS LOCATION COMPLIANT CIRUIT PROTECTION DEVICES, SYSTEMS AND METHODSJune 2023January 2024Allow700NoNo
18211375Wide Range Amplifier and Control MethodJune 2023April 2025Allow2200YesNo
18208953POWER FACTOR CORRECTION CIRCUITJune 2023March 2025Allow2200NoNo
18208523Power Console For A Surgical Tool That Includes A Transformer With An Integrated Current Source For Producing A Matched Current To Offset The Parasitic CurrentJune 2023October 2024Allow1620NoNo
18331932RECTIFIER CIRCUIT AND RECEIVER CIRCUITJune 2023April 2025Allow2200NoNo
18039975POWER SUPPLY SYSTEM AND POWER SUPPLY UNITJune 2023July 2025Allow2510NoNo
18326063OVER-ENERGY PROTECTION FOR A POWER SUPPLYMay 2023April 2025Allow2300YesNo
18322330Circuits and Methods to Startup and Shutdown Multi-Level ConvertersMay 2023April 2025Allow2300NoNo
18322532CONTROL CIRCUIT AND SWITCHING POWER SOURCEMay 2023March 2025Allow2200NoNo
18254111CONTROLLER FOR A DC-TO-DC CONVERTER, DC-TO-DC CONVERTER DEVICE, AND METHOD FOR ACTUATING A DC-TO-DC CONVERTERMay 2023March 2025Allow2200NoNo
18320308DCDC CONVERTER, INTEGRATED CIRCUIT, AND TARGET VOLTAGE GENERATION CIRCUITMay 2023March 2025Allow2200NoNo
18319811SWITCHING POWER SUPPLY CIRCUIT AND SWITCHING POWER SUPPLY DEVICEMay 2023March 2025Allow2200NoNo
18197901HYBRID ARC FLASH MITIGATION SYSTEMMay 2023August 2024Allow1520NoNo
18036518LEVEL-SHIFT CIRCUIT AND POWER SUPPLYMay 2023September 2025Abandon2910NoNo
18035691APPARATUS, METHOD AND SYSTEM FOR ADJUSTING VOLTAGE STABILIZATION OUTPUT OF POWER SOURCEMay 2023April 2025Allow2300NoNo
18142485SELECTIVE DAMPING OF RINGING IN A POWER CONVERTERMay 2023August 2025Abandon2810NoNo
18309284DIGITAL NONLINEAR TRANSFORMATION FOR VOLTAGE-MODE CONTROL OF A POWER CONVERTERApril 2023April 2024Allow1210NoNo
18307349POWER CONVERTERApril 2023February 2025Allow2200NoNo
18029471DC/DC CONVERTER AND A METHOD FOR OPERATING A DC/DC CONVERTERMarch 2023May 2025Allow2610NoNo
181927723-LEVEL BUCK-BOOST CONVERTER WITH FLYING CAPACITOR VOLTAGE BALANCING CIRCUITMarch 2023December 2024Allow2100NoNo
18193454CONTROL OF AUXILIARY-ASSISTED DC-DC CONVERTERMarch 2023July 2025Allow2810NoNo
18125559CONTROLLERS AND METHODS FOR CONTROLLING TRANSISTORS BASED AT LEAST IN PART ON MODES OF OPERATION RELATED TO POWER CONVERTERSMarch 2023March 2025Allow2300NoNo
18187992Synchronous Switch Driver with Switched FilterMarch 2023June 2025Allow2710NoNo
18186859Synchronous Rectifier Scheme to Avoid Cross-conduction in a Fly-Back ConverterMarch 2023November 2024Allow2000NoNo
18185304ELECTRONIC CIRCUITRY, POWER CONVERSION DEVICE, AND METHODMarch 2023April 2025Allow2510NoNo
18014078SUPER-STEEP SWITCHING DEVICE AND INVERTER DEVICE USING THE SAMEMarch 2023September 2025Allow3300YesNo
18177975DEVICES AND METHODS FOR IMPROVING A GRID SYNCHRONIZATION OF UNIDIRECTIONAL POWER CONVERTERSMarch 2023November 2024Allow2100NoNo
18177688STARTUP CIRCUIT FOR A FLYBACK CONVERTERMarch 2023April 2025Allow2510NoNo
18175848PFC DESIGN TECHNIQUE FOR HIGH PEAK LOADFebruary 2023July 2025Allow2810YesNo
18174193ASYMMETRIC POWER CONVERTERFebruary 2023December 2024Allow2200NoNo
18170757CONTROL CIRCUIT WITH ENERGY REGULATION FOR VOLTAGE REGULATORS AND CONTROL METHOD THEREOFFebruary 2023December 2024Allow2200NoNo
18169656METHODS AND SYSTEMS OF POWER-FACTOR-CORRECTION CONVERTERSFebruary 2023January 2025Allow2300NoNo
18166166QUASI-RESONANT AUTO-TUNING CONTROLLERFebruary 2023December 2023Allow1010NoNo
18163440SWITCHING POWER CONVERTING APPARATUSFebruary 2023March 2025Allow2510NoNo
18163481ACTIVE CLAMP FLYBACK CIRCUITFebruary 2023November 2024Allow2200NoNo
18162524POWER CONVERSION CIRCUIT, POWER TRANSMISSION SYSTEM, AND PHOTOVOLTAIC DEVICEJanuary 2023October 2024Allow2100NoNo
18161225SOLID-STATE TRANSFORMER AND POWER SUPPLY SYSTEMJanuary 2023February 2025Allow2510NoNo
18102784CHARGING DEVICE AND SAFETY FUNCTION CONTROL CIRCUIT AND METHOD THEREOFJanuary 2023November 2024Allow2200NoNo
18101051METHOD OF DESIGN AND MANUFACTURE OF A POWER ELECTRONICS CONVERTER FOR AN ELECTRICAL POWER SYSTEM, POWER ELECTRONICS CONVERTER FOR AN AIRCRAFT, AND AN AIRCRAFTJanuary 2023June 2025Allow2800NoNo
18156766FLYING CAPACITOR STARTUP CIRCUIT FOR MULTI-LEVEL VOLTAGE CONVERTERJanuary 2023January 2025Allow2400NoNo
18154848SEMICONDUCTOR DEVICES INCLUDING VOLTAGE MONITORSJanuary 2023May 2025Allow2800NoNo
18005491POWER CONVERSION DEVICE AND METHOD OF DIAGNOSING FAILURES OF SWITCHING DEVICESJanuary 2023January 2025Allow2400NoNo
18097175CURVATURE COMPENSATION CIRCUITS FOR BANDGAP VOLTAGE REFERENCE CIRCUITSJanuary 2023February 2025Allow2510NoNo
18096123SYSTEMS AND METHODS FOR MANAGING ENERGY-RELATED STRESS IN AN ELECTRICAL SYSTEMJanuary 2023August 2023Allow710NoNo
18095988Method and Device for Controlling Buck Converter and ChipJanuary 2023December 2024Allow2300NoNo
18148081POWER SUPPLY DEVICE, AND CHARGING METHOD AND SYSTEMDecember 2022October 2024Allow2100YesNo
18061262ELECTRICAL ENERGY CONVERTER WITH PIEZOELECTRIC ELEMENT(S) AND SWITCHING ASSISTANCE CIRCUIT(S), ASSOCIATED ELECTRICAL ENERGY CONVERSION ELECTRONIC SYSTEMDecember 2022October 2024Allow2200YesNo
17994635BRIDGELESS POWER FACTOR CORRECTION PFC CIRCUITNovember 2022October 2024Allow2200NoNo
18058219SWITCH MODE POWER CONVERTER WITH SYNCHRONOUS RECTIFIER IMPLEMENTING ADAPTIVE GATE VOLTAGE REGULATION FOR FAST TURN-OFFNovember 2022September 2024Allow2100NoNo
17987811APPARATUS AND METHOD FOR CONTROLLING TRANSIENT BOOST CIRCUIT OF VOLTAGE REGULATOR THROUGH FEEDBACK SIGNALS OBTAINED BY DIFFERENTIAL SENSING APPLIED TO OUTPUT CAPACITORNovember 2022October 2024Allow2300NoNo
17986530CONTROL CIRCUIT FOR A TOTEM POLE POWER FACTOR CORRECTION CIRCUIT AND THE METHOD THEREOFNovember 2022September 2024Allow2200NoNo
17986087CHARGING CIRCUITNovember 2022October 2024Allow2310NoNo
17982807HYBRID ARC FLASH MITIGATION SYSTEMNovember 2022February 2023Allow400NoNo
17997728ELECTRICAL POWER CONVERTER WITH PRE-CHARGE MODE OF OPERATIONNovember 2022August 2024Allow2200NoNo
17977472DC Voltage Detector Isolation CircuitOctober 2022February 2023Allow300NoNo
18050115DIGITAL NONLINEAR TRANSFORMATION FOR VOLTAGE-MODE CONTROL OF A POWER CONVERTEROctober 2022February 2023Allow300NoNo
17974787VOLTAGE REGULATOR WITH PULSE FREQUENCY CONTROLOctober 2022August 2024Allow2200NoNo
17970338INVERTER STRUCTUREOctober 2022July 2024Allow2000NoNo
17969436THREE-PHASE MULTI-TAP BALANCING DISTRIBUTION TRANSFORMEROctober 2022November 2024Allow2510NoNo
18047053VOLTAGE CONVERTEROctober 2022February 2025Allow2810NoNo
18047067SYSTEMS AND METHODS FOR INTEGRATED BOOST IN HIGH VOLTAGE AND LOW VOLTAGE POWER CONVERSION FOR BATTERY CHARGEROctober 2022June 2025Allow3210NoNo
17935542CONTROL CIRCUIT FOR A FLYBACK CONVERTER, RELATED INTEGRATED CIRCUIT, ELECTRONIC FLYBACK CONVERTER AND METHODSeptember 2022May 2023Allow710NoNo
17951481HYBRID-MODE POWER FACTOR CORRECTOR AND METHOD OF OPERATING THE SAMESeptember 2022June 2024Allow2100NoNo
17934749BUCK CONVERTER SYSTEM WITH AN ASYMMETRIC THRESHOLD VOLTAGE GATE DRIVE CIRCUIT DESIGNSeptember 2022May 2025Allow3220YesNo
17947465BANDGAP CIRCUIT WITH LOW POWER CONSUMPTIONSeptember 2022July 2024Allow2200NoNo
17911458DEVICE FOR PROVIDING A BANDGAP VOLTAGE REFERENCESeptember 2022September 2024Allow2410NoNo
17911265ELECTRIC POWER SUPPLY SYSTEM FOR BATTERY ASSEMBLY CONTROL CIRCUIT OF ELECTRICITY STORAGE DEVICE, AND ELECTRICITY STORAGE DEVICESeptember 2022May 2025Allow3200NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner DEMISSE, AFEWORK S.

Strategic Value of Filing an Appeal

Total Appeal Filings
11
Allowed After Appeal Filing
2
(18.2%)
Not Allowed After Appeal Filing
9
(81.8%)
Filing Benefit Percentile
22.2%
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, 18.2% 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

⚠ Filing a Notice of Appeal shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner DEMISSE, AFEWORK S - Prosecution Strategy Guide

Executive Summary

Examiner DEMISSE, AFEWORK S works in Art Unit 2838 and has examined 689 patent applications in our dataset. With an allowance rate of 95.5%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 21 months.

Allowance Patterns

Examiner DEMISSE, AFEWORK S's allowance rate of 95.5% places them in the 85% percentile among all USPTO examiners. This examiner is more likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by DEMISSE, AFEWORK S receive 0.89 office actions before reaching final disposition. This places the examiner in the 6% percentile for office actions issued. This examiner issues significantly fewer office actions than most examiners.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by DEMISSE, AFEWORK S is 21 months. This places the examiner in the 91% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +0.5% benefit to allowance rate for applications examined by DEMISSE, AFEWORK S. This interview benefit is in the 18% percentile among all examiners. Note: Interviews show limited statistical benefit with this examiner compared to others, though they may still be valuable for clarifying issues.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 38.1% of applications are subsequently allowed. This success rate is in the 87% percentile among all examiners. Strategic Insight: RCEs are highly effective with this examiner compared to others. If you receive a final rejection, filing an RCE with substantive amendments or arguments has a strong likelihood of success.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 50.8% of cases where such amendments are filed. This entry rate is in the 77% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 160.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 91% 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 100.0% of appeals filed. This is in the 93% 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 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, 20.0% are granted (fully or in part). This grant rate is in the 10% 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 Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.1% of allowed cases (in the 51% 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 2.1% of allowed cases (in the 69% 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:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • RCEs are effective: This examiner has a high allowance rate after RCE compared to others. If you receive a final rejection and have substantive amendments or arguments, an RCE is likely to be successful.
  • 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.