USPTO Examiner BRANDT DAVID NELSON - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18905240LIQUID COOLED PLUNGER SYSTEMOctober 2024March 2025Allow511YesNo
18759318BYPASS AND DEMAND PUMP AND VALVE SYSTEM FOR BYPASS AND DEMAND PUMPJune 2024October 2024Allow400NoNo
18676216IMPELLER BEARINGS FOR PUMPSMay 2024June 2025Allow1211YesNo
18605254PACKING SEAL ASSEMBLYMarch 2024January 2025Allow1021YesNo
18604139MECHANISM FOR ELECTRONIC ADJUSTMENT OF FLOWS IN FIXED DISPLACEMENT PUMPMarch 2024May 2025Allow1420NoNo
18604097MECHANISM FOR ELECTRONIC ADJUSTMENT OF FLOWS IN FIXED DISPLACEMENT PUMPMarch 2024May 2025Allow1420NoNo
18442562FLUID END WITH CLAMPED RETENTIONFebruary 2024April 2025Allow1421YesNo
18526658FRACTURING APPARATUSDecember 2023November 2024Allow1110YesNo
18497627ROTATIONAL METERING PUMP FOR MEDICATION PATCHOctober 2023September 2024Allow1110NoNo
18376303Compression PumpOctober 2023May 2024Allow711YesNo
18475645HIGH PRESSURE WATER PUMP FLUID ENDSeptember 2023February 2025Allow1711YesNo
18344596BYPASS AND DEMAND PUMP AND VALVE SYSTEM FOR BYPASS AND DEMAND PUMPJune 2023March 2024Allow900YesNo
18325310TUBE PUMPMay 2023March 2025Allow2110YesNo
18202513DIRECT CONTROLLED VARIABLE DISPLACEMENT VALVES WITH DUAL SET POINT PRESSURE RELIEFMay 2023May 2025Allow2411YesNo
18038452PUMPMay 2023December 2024Allow1810YesNo
18200499Hose PumpMay 2023May 2025Abandon2401NoNo
18139087GAS COMPRESSORApril 2023May 2025Allow2520YesNo
18305203CEILING FANApril 2023May 2025Allow2510YesNo
18300029BLOWERApril 2023November 2024Allow1910YesNo
18297727VACUUM PRIMING SYSTEM FOR CLOSE-COUPLED PUMPSApril 2023June 2025Allow2621YesNo
18131083VACUUM PUMPApril 2023April 2025Allow2520YesNo
18187972LINER BORE SEAL FOR FLUID END OF A HIGH PRESSURE RECIPROCATING PUMPMarch 2023April 2025Allow2511YesNo
18122629HYDRAULIC PUMPING SYSTEMMarch 2023March 2025Allow2411YesNo
18181728INTEGRATED PUMP GUARD AND CONTROL INTERLOCKMarch 2023August 2023Allow500YesNo
18171659ELECTRIC TURBOCHARGER WITH COOLING FLOW PATHFebruary 2023March 2025Allow2521YesNo
18019675MULTI-STAGE CENTRIFUGAL COMPRESSORFebruary 2023December 2024Abandon2310NoNo
18103605MOTOR MODULEJanuary 2023July 2025Allow2922NoNo
18101354OIL FEEDER AND LINEAR COMPRESSOR INCLUDING THE SAMEJanuary 2023August 2024Allow1910NoNo
18100794SCROLL ELECTRIC COMPRESSORJanuary 2023September 2024Allow2011YesNo
18155888AIR-CONDITIONING APPARATUS AND REFRIGERATION CYCLE APPARATUSJanuary 2023December 2024Abandon2340YesNo
18096180OPEN CHANNEL PLUNGER FOR FRACKING PUMPSJanuary 2023December 2024Allow2311YesNo
18150478WELL SERVICING PUMP SYSTEM WITH DRIVELINE ASSEMBLY FOR HYDRAULIC FRACTURING SYSTEMJanuary 2023November 2024Allow2311YesNo
18147928ASSEMBLY AND ELECTRIC COMPRESSOR WITH MODULAR STATOR ASSEMBLYDecember 2022November 2024Allow2210YesNo
18011432LINEAR COMPRESSORDecember 2022August 2024Allow1901YesNo
18001666MULTI-STAGE ELECTRIC CENTRIFUGAL COMPRESSORDecember 2022June 2025Allow3021YesNo
17988554FUEL CELL EJECTORNovember 2022May 2025Abandon3021YesNo
17988149HIGH PRESSURE FUEL PUMPNovember 2022January 2025Abandon2611NoNo
18050464Mechanical Resonant PumpOctober 2022February 2024Abandon1620NoNo
17948959AIR COMPRESSORSeptember 2022April 2024Allow1911YesNo
17895704ELECTRIC PUMP WITH ISOLATED STATORAugust 2022September 2024Abandon2520YesNo
17821304PROVIDING BACKPRESSURE FOR ELECTRIC COMPRESSORAugust 2022February 2025Allow3021YesNo
17884757PACKING SEAL ASSEMBLYAugust 2022December 2023Allow1621YesYes
17759819PUMPJuly 2022December 2024Abandon2911NoNo
17876111HOLDER FOR FIXING AN ELECTRIC COMPRESSORJuly 2022May 2025Abandon3340YesNo
17876033COMPRESSOR ASSEMBLYJuly 2022February 2024Allow1910YesNo
17874737LINEAR COMPRESSORJuly 2022February 2024Allow1911YesNo
17862259SELF-CONTAINED ACTUATING MAGNETIC PUMPJuly 2022December 2023Allow1711YesNo
17846050COVER, FLUID END AND PLUNGER PUMPJune 2022March 2024Allow2111YesNo
17845083ELECTRONIC PUMP AND METHODS OF USING THE SAMEJune 2022January 2024Allow1910YesNo
17832360IMPELLER BEARINGS FOR PUMPSJune 2022January 2024Allow2020YesNo
17825701AIR PUMP DEVICE AND SEAT APPARATUSMay 2022November 2023Allow1820YesNo
17772315EJECTOR DEVICEApril 2022March 2025Allow3431YesNo
17660289INTEGRATED PUMP GUARD AND CONTROL INTERLOCKApril 2022November 2022Allow700YesNo
17714477SWASH-PLATE TYPE PISTON PUMPApril 2022March 2023Allow1110YesNo
17711610Methods and Systems For Cooling A Pressurized Fluid With A Reduced-Pressure FluidApril 2022February 2023Allow1110YesNo
17710073COMPRESSORMarch 2022December 2023Allow2111YesNo
17710200COMPRESSORMarch 2022September 2023Allow1710YesNo
17698644FRACTURING APPARATUSMarch 2022August 2023Allow1710NoNo
17695991KITCHEN APPLIANCE APPARATUSMarch 2022July 2024Allow2800YesNo
17689980HYDRAULIC PUMP SYSTEMMarch 2022August 2024Allow2930YesNo
17688344SYSTEM FOR DISPENSING ABRASIVE MATERIALMarch 2022December 2023Allow2211NoNo
17685936FLUID END WITH CLAMPED RETENTIONMarch 2022November 2023Allow2021NoNo
17679873SEALING ASSEMBLY FOR A PUMP WITH A LEAK PATHFebruary 2022September 2024Allow3001YesNo
17680241Reciprocating Pump Fluid Cylinder Sleeve AssemblyFebruary 2022December 2023Allow2211YesNo
17636448Reciprocating PumpFebruary 2022December 2024Allow3420YesNo
17673340PUMP DEVICEFebruary 2022May 2024Allow2710YesNo
17672056HYDROGEN RECIRCULATION BLOWERFebruary 2022May 2025Allow3931YesNo
17588776CABINET MOUNTED AIR COMPRESSOR WITH NEGATIVE CABINET PRESSUREJanuary 2022February 2024Allow2530YesNo
17558136SEWAGE BASIN PUMP CONTROL SUPPORTDecember 2021October 2023Allow2230YesNo
17556116FAN HAVING HOLLOW VANES FOR COOLING THE MOTOR WITH EXTERNAL AIRDecember 2021January 2025Abandon3721NoNo
17544530SURGICAL DEVICES AND SYSTEMS FACILITATING FLUID MANAGEMENTDecember 2021March 2024Abandon2720YesNo
17541852ROTATIONAL METERING PUMP FOR INSULIN PATCHDecember 2021July 2023Allow2020YesNo
17595686INTEGRATED MOTOR-COMPRESSOR WITH A STAND-ALONE MOTOR AND BUNDLENovember 2021February 2024Allow2710YesNo
17529132SYSTEMS AND METHODS FOR COMPRESSION AND EXPANSION OF GASNovember 2021August 2024Abandon3311NoNo
17523230LINEAR COMPRESSORNovember 2021October 2023Allow2311YesNo
17454010VENTURI PUMP SYSTEM FOR A FUEL SENDING UNITNovember 2021January 2024Abandon2710NoNo
17594998BLOWERNovember 2021March 2024Allow2811YesNo
17503468LINEAR COMPRESSOROctober 2021December 2023Allow2620YesNo
17603617MECHANISM FOR ELECTRONIC ADJUSTMENT OF FLOWS IN FIXED DISPLACEMENT PUMPOctober 2021May 2024Allow3121YesNo
17501483COMPRESSOROctober 2021September 2023Abandon2310NoNo
17602142SYRINGE PUMPOctober 2021April 2024Allow3011YesNo
17309148SWASH PLATE COMPRESSOROctober 2021May 2024Allow3721YesNo
17600547CAPACITY CONTROL VALVESeptember 2021November 2023Allow2610NoNo
17487127COMPRESSOR AND HYDROGEN STATIONSeptember 2021September 2023Abandon2401NoNo
17442438FLUID PUMP WITH PRESSURE RELIEF PATHSeptember 2021April 2024Allow3011YesNo
17480663ASPIRATOR AIR VENT VALVESeptember 2021February 2023Allow1710YesNo
17476743LINEAR COMPRESSORSeptember 2021June 2023Allow2110NoNo
17433488SEALING DEVICE AND INTEGRATED PUMPAugust 2021February 2024Allow3011NoNo
17431555FOUR-CYLINDER DIAPHRAGM PUMPAugust 2021December 2023Allow2801YesNo
17352999CONTROL APPARATUS AND METHOD FOR CONTROLLING A VOLUME FLOW OF A FLUID IN A DRIVE TRAIN OF A MOTOR VEHICLEAugust 2021February 2024Allow3200YesNo
17400479AIR COMPRESSOR WITH RAMPED HEAD DECKAugust 2021June 2023Allow2210NoNo
17428582ELECTRICAL SCREW SPINDLE COOLANT PUMPAugust 2021May 2024Abandon3410NoNo
17390669Rotary Cylinder Piston Compressor Pump and Compressor with Rotary Cylinder Piston Compressor PumpJuly 2021December 2022Allow1600YesNo
17426413PLUNGER PUMP, LIQUID FEEDING DEVICE, AND LIQUID CHROMATOGRAPHY DEVICEJuly 2021September 2023Allow2610YesNo
17386053SOFT SERVE ICE CREAM PUMP ASSEMBLYJuly 2021January 2025Abandon4211NoNo
17381654LINEAR COMPRESSORJuly 2021April 2023Allow2110YesNo
17380300BLOWERJuly 2021February 2023Allow1910NoNo
17423573Metal Diaphragm Metal Damper and Fuel Pump Provided With SameJuly 2021April 2024Abandon3320NoNo
17375347COMPACT ANNULAR LINEAR INDUCTION PUMPJuly 2021June 2024Allow3520YesNo
17353907AIR COMPRESSORJune 2021April 2023Allow2210YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner BRANDT, DAVID NELSON.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
5
Examiner Affirmed
3
(60.0%)
Examiner Reversed
2
(40.0%)
Reversal Percentile
62.4%
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
9
Allowed After Appeal Filing
6
(66.7%)
Not Allowed After Appeal Filing
3
(33.3%)
Filing Benefit Percentile
92.3%
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, 66.7% 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 BRANDT, DAVID NELSON - Prosecution Strategy Guide

Executive Summary

Examiner BRANDT, DAVID NELSON works in Art Unit 3746 and has examined 339 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 30 months.

Allowance Patterns

Examiner BRANDT, DAVID NELSON'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 BRANDT, DAVID NELSON receive 1.77 office actions before reaching final disposition. This places the examiner in the 53% 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 BRANDT, DAVID NELSON is 30 months. This places the examiner in the 44% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +54.2% benefit to allowance rate for applications examined by BRANDT, DAVID NELSON. This interview benefit is in the 96% 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, 28.4% of applications are subsequently allowed. This success rate is in the 42% 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 36.3% of cases where such amendments are filed. This entry rate is in the 47% 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, 0.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 19% 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 64.3% of appeals filed. This is in the 39% percentile among all examiners. 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, 57.1% are granted (fully or in part). This grant rate is in the 73% 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 0.0% of allowed cases (in the 40% percentile). This examiner makes examiner's amendments less often than average. You may need to make most claim amendments yourself.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 3.4% of allowed cases (in the 73% 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.