USPTO Examiner NICHOLS CHARLES W - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
16972844REFRIGERATION SYSTEM MIXED-FLOW COMPRESSORDecember 2020March 2024Allow3940YesNo
17063870DEVICE FOR CONTROLLING A PISTON PUMP UNIT FOR LIQUID CHROMATOGRAPHYOctober 2020December 2023Allow3821YesNo
17044155VACUUM PUMP, AND CONTROL DEVICE OF VACUUM PUMPSeptember 2020March 2022Allow1800YesNo
17026631FLUID CONTROL DEVICESeptember 2020February 2023Allow2911NoNo
16859725CONTROLS AND RELATED METHODS FOR MITIGATING LIQUID MIGRATION AND/OR FLOODBACKApril 2020July 2023Allow3811YesNo
16826734STATE DETERMINATION DEVICE OF LIQUID PUMPING APPARATUS, AND LIQUID PUMPING APPARATUSMarch 2020July 2022Allow2710YesNo
16821837METHOD FOR CALIBRATING A PERISTALTIC PUMP, METHOD FOR DISPENSING A QUANTITY OF LIQUID BY MEANS OF A PERISTALTIC PUMP AND DEVICE FOR PRODUCING STERILE PREPARATIONS THAT CAN EXECUTE SAID METHODSMarch 2020August 2024Allow5341YesNo
16813307CONTROL SYSTEM FOR ELECTRIC FLUID MOVING SYSTEMSMarch 2020September 2023Allow4311YesNo
16799302ELECTRONIC TORQUE AND PRESSURE CONTROL FOR LOAD SENSING PUMPSFebruary 2020September 2024Abandon5540YesNo
16773092DRIVE ASSEMBLY FOR A GAS TURBINE ENGINEJanuary 2020October 2022Allow3210YesNo
16712534Gas CompressorDecember 2019April 2022Abandon2830NoNo
16706774OIL SUCTION PUMPDecember 2019May 2022Allow2900YesNo
16665661LIQUID TRAP DRAIN PUMPOctober 2019August 2022Abandon3410NoNo
16665271CEILING FAN KIT AND ELECTRICAL CONNECTOR WITH MOUNTING METHODOctober 2019February 2025Abandon6041YesYes
16607703PUMP MONITORING DEVICE, VACUUM PROCESSING DEVICE, AND VACUUM PUMPOctober 2019October 2022Abandon3510NoNo
16592103METHOD AND APPARATUS FOR REPAIRING A JET PUMP SLIP JOINTOctober 2019August 2022Allow3500YesNo
16590963SUPERCHARGEROctober 2019October 2022Allow3711YesNo
16522996SYSTEMS AND METHODS FOR CONTROLLING DOWNHOLE LINEAR MOTORSJuly 2019July 2022Allow3510YesNo
16522981SYSTEMS AND METHODS FOR CONTROLLING DOWNHOLE LINEAR MOTORSJuly 2019July 2022Allow3510YesNo
16504744APPARATUS AND METHOD OF CONTROLLING AN AIR COMPRESSOR TO EXPEL MOISTURE FROM THE AIR COMPRESSORJuly 2019September 2024Abandon6051YesNo
16339798Gas intensifier with lubricationApril 2019November 2022Abandon4310NoNo
16329852Fluid End for a PumpMarch 2019August 2022Abandon4210NoNo
16275459AIR COMPRESSORFebruary 2019May 2022Allow3910YesNo
16324798LINEAR COMPRESSORFebruary 2019April 2022Allow3810YesNo
16270883FUEL PUMP AND INLET VALVE ASSEMBLY THEREOFFebruary 2019July 2022Allow4120YesNo
16257328Wearable Cooling DeviceJanuary 2019November 2023Allow5830YesNo
16258177PISTON PUMP WITH SIMPLIFIED HEADJanuary 2019February 2022Allow3710YesNo
16246554ZIPPER TAB ASSEMBLY WITH EXHAUSTING/INFLATING FUNCTIONSJanuary 2019September 2021Allow3210YesNo
16316656HIGH-DENSITY POWDER PUMPJanuary 2019September 2022Allow4420YesNo
16209246EJECTORDecember 2018June 2022Allow4221YesNo
16157536Centrifugal Impeller and Centrifugal BlowerOctober 2018August 2020Abandon2310NoNo
16136908Piston Compressor with a Closing Device for the Outlet LineSeptember 2018August 2020Abandon2301NoNo
16135398LUBRICATING OIL SUPPLY APPARATUS AND COMPRESSOR USING LUBRICATING OIL SUPPLY APPARATUSSeptember 2018October 2022Allow4911NoNo
16085458DIAPHRAGM PUMPSeptember 2018July 2022Allow4620YesNo
16081505GEAR PUMP AND METHOD FOR MONITORING A GEAR PUMPAugust 2018January 2021Abandon2810NoNo
16117771MINIATURE COOLING SYSTEMAugust 2018February 2022Allow4111NoNo
16116213PRESSURIZED FLUID SUPPLY APPARATUS AND METHOD OF SUPPLYING PRESSURIZED FLUIDAugust 2018August 2021Allow3510YesNo
16116436PUMP PISTONAugust 2018October 2022Allow4921YesNo
16077503Reciprocating Compressor and Control Method ThereforAugust 2018June 2021Allow3410NoNo
16058357PISTON PUMP FOR BRAKE SYSTEMAugust 2018July 2021Allow3510YesNo
16058221Fuel Pump For A Fuel Injection SystemAugust 2018January 2022Abandon4120YesNo
16050001SERVOLESS MOTORJuly 2018November 2022Allow5131YesNo
16041068RECIPROCATING PUMPJuly 2018July 2021Allow3612NoNo
16071638Integrated Modular, Multi-Stage Motor-Pump/Compressor DeviceJuly 2018August 2021Allow3610YesNo
16033130INFLATING DEVICEJuly 2018May 2021Allow3410NoNo
16021331DUAL PUMP SYSTEMJune 2018May 2021Allow3510NoNo
16066426DEPLOYMENT OF A MODULAR ELECTRICALLY DRIVEN PUMP IN A WELLJune 2018July 2023Allow6040YesNo
15983623PLANT FOR CONTROLLING DELIVERY OF PRESSURIZED FLUID IN A CONDUIT, AND A METHOD OF CONTROLLING A PRIME MOVERMay 2018March 2022Abandon4611NoNo
15962485FLUID CIRCULATOR WITH DISPLAYApril 2018December 2020Abandon3210NoNo
15961306PUMPING ASSEMBLYApril 2018August 2022Abandon5230YesNo
15725498METHOD OF DAMPENING PRESSURE PULSATIONS IN A WORKING FLUID WITHIN A CONDUITOctober 2017October 2019Allow2400NoNo
15715647Tube Pump and Tube StabilizerSeptember 2017June 2019Abandon2120NoNo
15524366SEAL GAS SUPPLY CONTROL METHOD, SEAL GAS SUPPLY CONTROL APPARATUS, AND ROTARY MACHINEMay 2017May 2022Allow6040YesNo
15584336GAS TURBINE ENGINE CASING ARRANGEMENTMay 2017July 2021Allow5030YesNo
15583866SUBMERSIBLE PNEUMATIC PUMP WITH AIR-EXCLUSION VALVEMay 2017May 2021Allow4811NoNo
15496977AIRFOIL PLATFORM COOLING CHANNELSApril 2017June 2021Allow5030YesNo
15477660APPARATUS AND METHOD FOR PRESSURE REGULATIONApril 2017January 2022Allow5840YesNo
15475349Method for Preventing Wind Turbine Rotor Blade Tower StrikesMarch 2017January 2022Abandon5740YesNo
15472357DRIVE ASSEMBLY FOR A GAS TURBINE ENGINEMarch 2017November 2019Allow3110YesNo
15471731TIP COOLING DESIGNMarch 2017March 2020Allow3620YesNo
15468617A ROTARY MACHINE FOR MIXING, PUMPING OR AGITATING A FLUID AND A METHOD OF MOUNTINGMarch 2017April 2022Allow6040YesNo
15507436SEAL STRUCTUREFebruary 2017September 2019Allow3110YesNo
15435530Method for Controlling a Compressor InstallationFebruary 2017July 2021Allow5230YesNo
15392437DOWNHOLE BLOWER SYSTEM WITH BEARINGS AND SEALSDecember 2016May 2022Allow6040YesNo
15385055INFLATION DEVICEDecember 2016November 2019Allow3520YesNo
15352724BLOWERNovember 2016May 2020Allow4230YesNo
15345561HIGH PRESSURE COMPRESSOR AND REFRIGERATING MACHINE HAVING A HIGH PRESSURE COMPRESSORNovember 2016April 2020Allow4221YesNo
15306175PUMPING METHOD IN A SYSTEM FOR PUMPING AND SYSTEM OF VACUUM PUMPSOctober 2016November 2020Abandon4930NoNo
15293708PRESSURE BOOSTING DEVICEOctober 2016January 2022Allow6020YesNo
15290374SOLENOID PUMP MOUNTING METHODOctober 2016March 2019Abandon2910NoNo
15129018ELECTRIC SUPERCHARGER AND SUPERCHARGING SYSTEMSeptember 2016June 2021Allow5740YesNo
15125837PUMP DEVICESeptember 2016June 2019Abandon3310NoNo
15120900ELECTRONIC TORQUE AND PRESSURE CONTROL FOR LOAD SENSING PUMPSAugust 2016September 2022Allow6050YesNo
15120673REFRIGERANT COMPRESSOR AND REFRIGERATION APPLIANCE USING SAMEAugust 2016March 2019Abandon3010NoNo
15115633SUPERCHARGER AND MOTOR COOLING METHODJuly 2016March 2022Allow6040YesNo
15101735COMPRESSOR SYSTEM FOR A RAIL VEHICLE AND METHOD FOR OPERATING THE COMPRESSOR SYSTEM WITH SAFE EMERGENCY OPERATIONJune 2016May 2021Abandon5950YesNo
15035893CONTROL METHOD FOR THE ACCELERATION OF A VACUUM PUMP, IN WHICH METHOD THE INPUT CURRENT OF THE CONTROL DEVICE IS LIMITEDMay 2016June 2019Abandon3720NoNo
15036049AN INFLATING DEVICEMay 2016February 2020Allow4530NoNo
15148647AIR SUPPLY DEVICE AND RELATED METHODS OF MANUFACTUREMay 2016February 2018Abandon2120NoNo
15034181MAGNET PUMP FOR AN AUXILIARY ASSEMBLY OF A VEHICLE, AND METHOD FOR CONTROLLING A MAGNET PUMP FOR AN AUXILIARY ASSEMBLYMay 2016October 2018Allow2910NoNo
15145707SUBMERSIBLE PNEUMATIC PUMP WITH AIR EXCLUSION VALVEMay 2016January 2020Abandon4431YesNo
15030611ELECTRIC SCROLL COMPRESSORApril 2016May 2019Abandon3720YesNo
15030732VARIABLE DISPLACEMENT PUMPApril 2016April 2021Abandon6040YesNo
15094841PULSATILE PUMP FOR CATHETER SIMULATORApril 2016April 2019Allow3620NoNo
15028192TURBOMACHINE WHICH CAN BE OPERATED BOTH AS HYDRAULIC MOTOR AND AS PUMPApril 2016July 2021Allow6030YesNo
15087273FLUID APPARATUSMarch 2016June 2019Abandon3920YesNo
15025489Gear Pump for Hydroelectric Power GenerationMarch 2016December 2018Abandon3310NoNo
15075195SYSTEMS AND METHODS FOR CONTROLLING DOWNHOLE LINEAR MOTORSMarch 2016May 2019Allow3720YesNo
15063061HERMETIC ELECTRICAL FEEDTHROUGH ASSEMBLY FOR A COMPRESSORMarch 2016October 2017Abandon2040NoNo
14917190LIQUID INJECTED SCREW COMPRESSOR, CONTROLLER FOR THE TRANSITION FROM AN UNLOADED STATE TO A LOADED STATE OF SUCH A SCREW COMPRESSOR AND METHOD APPLIED THEREWITHMarch 2016January 2020Allow4720YesNo
14914959Compression ApparatusFebruary 2016June 2019Abandon4020NoNo
14912434VACUUM PUMPFebruary 2016May 2022Allow6070YesNo
15017987Control Device and Pump ApparatusFebruary 2016May 2019Abandon4030YesNo
15013047FUEL PUMPFebruary 2016March 2019Abandon3720NoNo
14909472COMPACT CENTRIFUGAL FANFebruary 2016June 2020Abandon5230YesNo
14906590ROTARY-WAVE SUB-ASSEMBLY FOR PUMPING A FLUID AND ROTARY-WAVE PUMPING DEVICEJanuary 2016April 2019Abandon3920NoNo
14902042DRY ROUGHING VACUUM PUMPDecember 2015November 2019Allow4620YesNo
14900375TURBO COMPRESSOR AND TURBO REFRIGERATING MACHINEDecember 2015July 2020Abandon5540NoNo
14976898THERMAL ENHANCEMENT OF CABIN AIR COMPRESSOR MOTOR COOLINGDecember 2015February 2022Allow6040YesNo
14974715MULTI-STAGE COMPRESSOR WITH SINGLE ELECTRIC DIRECT DRIVE MOTORDecember 2015April 2022Allow6041YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner NICHOLS, CHARLES W.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
4
Examiner Affirmed
1
(25.0%)
Examiner Reversed
3
(75.0%)
Reversal Percentile
89.7%
Higher than average

What This Means

With a 75.0% 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
34
Allowed After Appeal Filing
11
(32.4%)
Not Allowed After Appeal Filing
23
(67.6%)
Filing Benefit Percentile
50.7%
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, 32.4% 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 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 NICHOLS, CHARLES W - Prosecution Strategy Guide

Executive Summary

Examiner NICHOLS, CHARLES W works in Art Unit 3746 and has examined 295 patent applications in our dataset. With an allowance rate of 52.5%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 44 months.

Allowance Patterns

Examiner NICHOLS, CHARLES W's allowance rate of 52.5% places them in the 16% 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 NICHOLS, CHARLES W receive 2.91 office actions before reaching final disposition. This places the examiner in the 81% 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 NICHOLS, CHARLES W is 44 months. This places the examiner in the 16% 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 +56.9% benefit to allowance rate for applications examined by NICHOLS, CHARLES W. This interview benefit is in the 95% 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, 18.2% of applications are subsequently allowed. This success rate is in the 20% 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 6.2% of cases where such amendments are filed. This entry rate is in the 7% percentile among all examiners. Strategic Recommendation: This examiner rarely enters after-final amendments compared to other examiners. You should generally plan to file an RCE or appeal rather than relying on after-final amendment entry. Per MPEP § 714.12, primary examiners have discretion in entering after-final amendments, and this examiner exercises that discretion conservatively.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 200.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 99% 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 85.2% of appeals filed. This is in the 78% percentile among all examiners. Of these withdrawals, 47.8% 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, 73.3% are granted (fully or in part). This grant rate is in the 79% 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 0.3% of allowed cases (in the 55% 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 0.0% of allowed cases (in the 49% percentile). This examiner issues Quayle actions less often than average. Allowances may come directly without a separate action for formal matters.

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.
  • 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.
  • 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.
  • Plan for RCE after final rejection: This examiner rarely enters after-final amendments. Budget for an RCE in your prosecution strategy if you receive a final rejection.
  • 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.
  • 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.