USPTO Examiner LETTMAN BRYAN MATTHEW - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19036483FLUID ROUTING PLUGJanuary 2025July 2025Allow500YesNo
18784259Adaptive Learning System for Improving Sump Pump ControlJuly 2024April 2025Allow800YesNo
18779480FLUID ROUTING PLUGJuly 2024September 2024Allow200YesNo
18763761FLUID PUMPING SYSTEMS, DEVICES AND METHODSJuly 2024July 2025Allow1210YesNo
18735199VACUUM SYSTEM HAVING CONDENSER AND ROOT VACUUM PUMP SETJune 2024March 2025Allow1000NoNo
18637113HYDRAULIC PUMPApril 2024February 2025Allow1001YesNo
18595052ELECTRIC FAN AND CLEANING APPARATUSMarch 2024May 2025Allow1500YesNo
18434354FLUID ROUTING PLUGFebruary 2024January 2025Allow1110YesNo
18425804FLEXIBLE IMPELLER PUMPJanuary 2024May 2025Allow1610YesNo
18420163PORTABLE FANJanuary 2024January 2025Allow1230NoNo
18396991FLUID ROUTING PLUGDecember 2023March 2024Allow300NoNo
18573308MEMBRANE COMPRESSORDecember 2023April 2025Allow1600YesNo
18539436APPARATUS AND METHOD OF OPERATING A GAS PUMPDecember 2023July 2024Allow700YesNo
18538373PUMP FLUID END WITH SUCTION VALVE CLOSURE ASSISTDecember 2023November 2024Allow1102YesNo
18517054VARIABLE DIAMETER VALVE BORES FOR THRU ROD FLUID ENDSNovember 2023June 2025Allow1810NoNo
18514343METHOD FOR CONTROLLING A GEAR PUMPNovember 2023April 2025Allow1701YesNo
18511735LONGITUDINAL IMPEDANCE PUMPNovember 2023April 2025Allow1700YesNo
18561344Piston Compressor Having Eccentric Lifting ElementNovember 2023June 2025Allow1910YesNo
18376167SOFT SERVE ICE CREAM PUMP ASSEMBLYOctober 2023March 2025Allow1800YesNo
18470425PUMP DEVICESeptember 2023December 2024Allow1500NoNo
18369009Adaptive Learning System for Improving Sump Pump ControlSeptember 2023April 2024Allow700YesNo
18464688Air Compressor Systems for Remote SettingsSeptember 2023May 2025Allow2000NoNo
18460492PUMPING CASSETTESeptember 2023April 2024Allow700NoNo
18237266FLUID PRESSURE COMPENSATION APPARATUSAugust 2023March 2025Allow1900YesNo
18357076FLUID PUMPING SYSTEMS, DEVICES AND METHODSJuly 2023February 2024Allow700YesNo
18218881APPARATUS AND METHOD OF OPERATING A GAS PUMPJuly 2023September 2023Allow300YesNo
18346798FULL-PLASTIC LIQUID PUMPJuly 2023October 2024Allow1600YesNo
18341070FLUID ROUTING PLUGJune 2023August 2023Allow200YesNo
18338735SYSTEM OF GAS COMPRESSION UTILIZING VARIABLE INPUT PRESSURES TO PRODUCE A CONSISTENT OUTPUT PRESSUREJune 2023February 2024Allow810YesNo
18338354SYSTEM FOR SUPPLYING CHEMICAL SOLUTIONJune 2023July 2024Allow1310YesNo
18202675PRESSURE CONTROLLED PUMP SYSTEMSMay 2023May 2025Allow2410YesNo
18038720FREQUENCY-ADJUSTABLE WATER DRIPPING DEVICEMay 2023September 2024Allow1600YesNo
18200775UNIFIED AIR COMPRESSORMay 2023September 2024Allow1600YesNo
18315877FLEXIBLE IMPELLER PUMP FOR FLOWABLE FOOD PRODUCTMay 2023March 2025Allow2240YesNo
18249146SERVO ARRANGEMENTApril 2023February 2025Abandon2210NoNo
18297098METHODS FOR MEASURING FLUID FLOW OF FLUID SUPPLY ASSEMBLYApril 2023March 2025Allow2311YesNo
18042501GUIDE DEVICE, COOLANT DUCT AND DIFFUSION VACUUM PUMPFebruary 2023October 2024Abandon1910NoNo
18168041FLUID ROUTING PLUGFebruary 2023October 2023Allow810YesNo
18040916LIQUID BLADE PUMPFebruary 2023July 2024Abandon1810NoNo
18040728LIQUID BLADE PUMPFebruary 2023July 2024Abandon1810NoNo
18040046COOLING FAN ASSEMBLY WITH WATER FORDING FEATURESJanuary 2023January 2025Allow2410YesNo
18161906VACUUM SYSTEM HAVING CONDENSER AND ROOT VACUUM PUMP SETJanuary 2023January 2025Abandon2410NoNo
18007011MODIFIED JET PUMP INCORPORATING A SUPPORT FOR MPLT LOGGING AT THE BOTTOM OF AN OIL WELLJanuary 2023July 2024Allow1700YesNo
18101326SACRIFICIAL ANODE ASSEMBLY FOR A SEAL SECTION OF AN ELECTRIC SUBMERSIBLE PUMP (ESP) ASSEMBLYJanuary 2023September 2024Allow2001YesNo
18015471Nozzle Appliance for a Jet Pump and Jet PumpJanuary 2023December 2024Abandon2320NoNo
18014859ELECTROCHEMICAL ACTUATORS AND ACTUATOR ARRAYSJanuary 2023January 2025Allow2410NoNo
18013495LINEAR COMPRESSORDecember 2022March 2025Allow2610NoNo
18086867METHOD FOR OPERATING AN ELECTRONICALLY CONTROLLED PUMP ASSEMBLYDecember 2022November 2023Allow1110YesNo
18068141Reciprocating Piston Pump for Conveying a MediumDecember 2022May 2025Allow2820YesNo
18000991CROSSHEAD BUSHING SYSTEMS AND METHODSDecember 2022April 2024Allow1600YesNo
17967281TORSION PUMP AND CHEMICAL LIQUID SUPPLY UNITOctober 2022June 2025Allow3210YesNo
17929794WATER-RING VACUUM PUMP INCLUDING BUILT-IN HOGGING FLOW PATHSeptember 2022June 2023Allow900YesNo
17938910Multi-pump integrated mixed fluid delivery deviceSeptember 2022May 2025Allow3200YesNo
17822467FLUID PUMPAugust 2022November 2024Abandon2711NoNo
17802226PUMP WITH SUCTION CHAMBER IMPACT BODYAugust 2022March 2025Allow3100YesNo
17800986COMPRESSION APPARATUS AND FILLING STATION COMPRISING SUCH AN APPARATUSAugust 2022May 2024Allow2110YesNo
17800992COMPRESSION APPARATUS AND FILLING STATION COMPRISING SUCH AN APPARATUSAugust 2022January 2025Abandon2920NoNo
17884736FLUID ROUTING PLUGAugust 2022February 2023Allow610YesNo
17881812Exercise Machine Retrofit with the Capacity to Pump FluidAugust 2022December 2024Abandon2811NoNo
17817357Pump operated by hand or pressurized airAugust 2022August 2023Allow1200NoNo
17879513VALVE ARRANGEMENTAugust 2022May 2024Allow2201YesNo
17816267PUMP FOR ARTICLE OF FOOTWEAR OR APPARELJuly 2022August 2024Allow2520YesNo
17795787OSCILLATORY-ROTARY LIQUID DISPENSING DEVICE WITH SPRING, AND ASSOCIATED METHODJuly 2022January 2025Allow3020YesNo
17870788ELECTRIC OIL PUMP AND CONTROL SYSTEM THEREOFJuly 2022May 2024Allow2201YesNo
17791762FLUID CYLINDER SLEEVE ASSEMBLYJuly 2022November 2024Abandon2920NoNo
17859746FAN DEVICE WITH STABILITY MAINTENANCE ASSEMBLYJuly 2022March 2025Allow3231YesNo
17850839EJECTOR WITH INTEGRATED ISOLATION VALVEJune 2022June 2024Allow2411YesNo
17787011METHOD AND SYSTEM FOR REDUCING NOISE AND FOR POSITIONING OF PISTON IN A COMPRESSOR DURING MOTOR STARTUPJune 2022March 2025Allow3300YesNo
17835500MEDICAL FLUID PUMPING SYSTEM HAVING BACKFLOW PREVENTIONJune 2022March 2025Allow3451NoNo
17751951PLUNGER ACTUATED VALVEMay 2022May 2023Allow1200YesNo
17664537EJECTOR AND VACUUM GENERATING DEVICE INCLUDING THE SAMEMay 2022June 2025Allow3711YesNo
17755510PUMP NOISE ATTENUATOR AND METHOD THEREOFApril 2022February 2025Allow3431YesNo
17724759PIEZOELECTRIC DEVICEApril 2022June 2025Allow3700YesNo
17719591UNIFIED AIR COMPRESSORApril 2022February 2023Allow1000NoNo
17718815FLUID PUMP WITH THRUST BEARING DRIVERApril 2022February 2024Allow2201NoNo
17716551FAN CONTROL FOR COMPUTING DEVICESApril 2022December 2023Allow2000YesNo
17709134Piston of Cylinder of Air CompressorMarch 2022September 2023Allow1811YesNo
17707382SCROLL COMPRESSOR AND AIR CONDITIONER HAVING SAMEMarch 2022February 2024Allow2301YesNo
17706723ACOUSTIC WAVE DEVICEMarch 2022May 2025Allow3800YesNo
17763266METHOD AND SYSTEM FOR TRANSPORTATING FLUID, AND DEVICE EMPLOYING SYSTEM AND METHODMarch 2022December 2024Allow3310NoNo
17698773SOUND ABSORBING COVER AND VIBRATION INSULATING SUPPORT FOR AN ELECTRIC COMPRESSORMarch 2022July 2024Allow2821YesNo
17695828THERMO-ELECTRIC COOLER PUMP METHODS AND SYSTEMSMarch 2022December 2022Allow920YesNo
17679404CRANKSHAFT MOUNTED COMPRESSORFebruary 2022December 2024Abandon3440YesNo
17668529FLUID ROUTING PLUGFebruary 2022October 2022Allow800YesNo
17667669Pump Fluid End with Suction Valve Closure AssistFebruary 2022September 2023Allow1912YesNo
17634093PORTABLE FLUID PUMPFebruary 2022June 2024Allow2800YesNo
17427754LIQUID FEED PUMP AND LIQUID CHROMATOGRAPHY DEVICEFebruary 2022October 2023Allow2700YesNo
17581851ELECTRIC MACHINE, DRIVE SYSTEM, AND USE THEREOFJanuary 2022April 2024Abandon2701NoNo
17580073ELECTRONICALLY COMMUTATED MOTOR, FAN WITH ELECTRONICALLY COMMUTATED MOTOR, AND HOUSEHOLD APPLIANCEJanuary 2022April 2024Allow2710YesNo
17567859IMPELLER AND CENTRIFUGAL FAN HAVING THE IMPELLERJanuary 2022May 2023Allow1710YesNo
17622941AXIAL AND DOWNSTREAM COMPRESSOR ASSEMBLYDecember 2021January 2024Allow2520YesNo
17622583THICK MATTER PUMP AND METHOD FOR CONVEYING THICK MATTERDecember 2021April 2023Abandon1610NoNo
17621400INDUCER FOR A SUBMERSIBLE PUMP FOR PUMPING A SLURRY CONTAINING SOLIDS AND VISCOUS FLUIDS AND METHOD OF DESIGNING SAMEDecember 2021June 2024Allow3020YesNo
17617289DIAPHRAGM PUMP AND BLOOD PURIFICATION APPARATUS USING SAMEDecember 2021November 2024Allow3530YesNo
17612442VACUUM ASSEMBLY AND VACUUM PUMP WITH AN AXIAL THROUGH PASSAGENovember 2021January 2024Abandon2610NoNo
17521492JET PUMP SPOOL VALVENovember 2021August 2023Allow2100YesNo
17510456LIQUID COOLING MODULE AND ELECTRONIC DEVICE INCLUDING THE SAMEOctober 2021May 2024Allow3101YesNo
17506595PUMP COMPRISING BALLS FOR DISPLACEMENT OF FLUIDOctober 2021May 2024Allow3111YesNo
17602442JET PUMPOctober 2021October 2023Allow2420YesNo
17599097Pump And Releasably Coupled Pump ActuatorSeptember 2021March 2025Abandon4130YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner LETTMAN, BRYAN MATTHEW.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
30
Examiner Affirmed
17
(56.7%)
Examiner Reversed
13
(43.3%)
Reversal Percentile
65.6%
Higher than average

What This Means

With a 43.3% 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
76
Allowed After Appeal Filing
25
(32.9%)
Not Allowed After Appeal Filing
51
(67.1%)
Filing Benefit Percentile
47.8%
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, 32.9% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable 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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Examiner LETTMAN, BRYAN MATTHEW - Prosecution Strategy Guide

Executive Summary

Examiner LETTMAN, BRYAN MATTHEW works in Art Unit 3746 and has examined 1,076 patent applications in our dataset. With an allowance rate of 69.3%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 34 months.

Allowance Patterns

Examiner LETTMAN, BRYAN MATTHEW's allowance rate of 69.3% places them in the 23% 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 LETTMAN, BRYAN MATTHEW receive 1.98 office actions before reaching final disposition. This places the examiner in the 64% 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 LETTMAN, BRYAN MATTHEW is 34 months. This places the examiner in the 25% 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 +53.6% benefit to allowance rate for applications examined by LETTMAN, BRYAN MATTHEW. 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, 25.1% of applications are subsequently allowed. This success rate is in the 29% 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 22.4% of cases where such amendments are filed. This entry rate is in the 21% 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, 71.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 56% 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 60.0% of appeals filed. This is in the 32% percentile among all examiners. Of these withdrawals, 35.6% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows below-average willingness to reconsider rejections during appeals. Be prepared to fully prosecute appeals if filed.

Petition Practice

When applicants file petitions regarding this examiner's actions, 52.0% are granted (fully or in part). This grant rate is in the 65% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 3.0% of allowed cases (in the 83% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 1.6% of allowed cases (in the 62% 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.
  • 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.
  • Plan for extended prosecution: Applications take longer than average with this examiner. Factor this into your continuation strategy and client communications.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

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.