USPTO Examiner HANSEN KENNETH J - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19127827AN AIR PUMPMay 2025December 2025Allow700NoNo
19181780Alternating Pump GapsApril 2025March 2026Allow1100NoNo
19169146EXPANDABLE, INNER LINER PUMPApril 2025March 2026Allow1100YesNo
19117831SYSTEMS, DEVICES, AND/OR METHODS FOR MANAGING WATERApril 2025January 2026Allow900NoNo
19016175NECK FANJanuary 2025June 2025Allow510NoNo
19010416NECK FANJanuary 2025June 2025Allow510NoNo
19007982PORTABLE FAN NECK FAN AND FAN ASSEMBLYJanuary 2025June 2025Allow510NoNo
18989792CEILING FAN WITH CANOPY MOUNTING ASSEMBLYDecember 2024November 2025Allow1100YesNo
18876555A HYDRAULIC DEVICEDecember 2024October 2025Allow1000NoNo
18954355ELECTRIC MOTOR PUMPNovember 2024February 2026Allow1510NoNo
18946862NOVEL BIDIRECTIONAL BLOWING FIREPLACE FANNovember 2024March 2025Allow410NoNo
18933625NECK FANOctober 2024December 2025Allow1310NoNo
18928610CENTRIFUGAL COMPRESSOR WITH LIQUID INJECTIONOctober 2024March 2026Allow1610YesNo
18801947INTEGRATED ELECTRIC OIL PUMP AND OPERATION METHOD THEREOFAugust 2024September 2025Allow1330YesNo
18792289PORTABLE BLOWERAugust 2024September 2025Allow1300NoNo
18782689WATER PUMP STRUCTURE AND ORAL IRRIGATORJuly 2024August 2025Allow1300NoNo
18715904LIQUID DELIVERY PUMPJune 2024October 2025Allow1610NoNo
18663792FAN MODULE, MAIN DRIVE MODULE AND FOLDABLE HANDHELD FAN USING THE SAMEMay 2024April 2025Allow1111NoNo
18704464DEVICE FOR RECIRCULATING ANODE GAS IN A FUEL CELL SYSTEMApril 2024February 2026Abandon2210NoNo
18640108BLOOD PUMP WITH IMPROVED LEAKAGE CONTROLApril 2024May 2025Allow1300NoNo
18616798SYSTEMS, APPARATUSES, AND METHODS FOR CHANGING A PRIMARY EXTRACTION LOCATION FROM AN AQUIFER UTILIZING A CUSTOM EXTENDED PUMP SLEEVE (CEPS)March 2024July 2025Allow1620YesNo
18693263VARIABLE SPEED PUMP OF AN ELECTRIC MACHINEMarch 2024December 2025Abandon2100YesNo
18693266ELECTRIC TURBO COMPRESSORMarch 2024July 2025Allow1600NoNo
18597553CONTROL UNIT FOR OPERATING A BLOOD PUMP IN DIFFERENT CONVEYING MODESMarch 2024November 2025Allow2010NoNo
18594852ELECTRIC BLOWER AND CLEANING APPARATUSMarch 2024January 2026Abandon2210NoNo
18689027ELECTRIC FAN FOR AN AIRCRAFTMarch 2024July 2025Allow1710NoNo
18688501ELECTRIC PUMP ASSEMBLY, MANUFACTURING METHOD FOR INSTALLING SUCH A PUMP ASSEMBLYMarch 2024December 2025Allow2211NoNo
18682528PURGE APPARATUS AND PURGE METHODFebruary 2024June 2025Allow1600NoNo
18424263HYDROSTATIC SHOE WITH FACE SEALJanuary 2024September 2025Allow2010YesNo
18421213NECK FANJanuary 2024May 2024Allow410NoNo
18415476DEVICES EXPLOITING FLUIDIC SYSTEMS AND ACTUATORSJanuary 2024December 2025Abandon2310NoNo
18407696BIDIRECTIONAL AIR PUMPJanuary 2024July 2024Allow610NoNo
18402909RADIALLY COMPRESSIBLE AND EXPANDABLE ROTOR FOR A PUMP HAVING AN IMPELLER BLADEJanuary 2024November 2025Allow2210NoNo
18539497MAGNETO-HYDRODYNAMIC (MHD) CONNECTION PUMP AND A DOWNHOLE TUBING CONNECTION SYSTEM USING THE SAMEDecember 2023August 2025Allow2010NoNo
18537900REMANUFACTURED YOKE FOR FUEL PUMPDecember 2023September 2025Allow2111YesNo
18563762VACUUM PUMPNovember 2023August 2025Allow2110NoNo
18561819VACUUM PUMPNovember 2023October 2025Allow2310NoNo
18386530INTERNAL ESP SEAL BAG SUPPORTNovember 2023September 2025Allow2210NoNo
18285038Electric Motor With Cooling ArrangementSeptember 2023April 2025Allow1910NoNo
18283232MULTISTAGE FLUID COMPRESSORSeptember 2023April 2025Allow1810NoNo
18370044CEILING FAN WITH CANOPY MOUNTING ASSEMBLYSeptember 2023November 2024Allow1400NoNo
18466403FAN MOTORSeptember 2023November 2025Allow2611NoNo
18281725COMPRESSORSeptember 2023October 2025Allow2510NoNo
18549686IMPELLER AND METHOD FOR OPERATING AN IMPELLERSeptember 2023July 2025Allow2210NoNo
18463356VENTILATION SYSTEM WITH INTEGRATED DRIVE SYSTEMSeptember 2023November 2025Allow2620YesNo
18243213AXIAL PISTON VARIABLE DISPLACEMENT HYDRAULIC DEVICES, SUCH AS HYDRAULIC MOTORS, AND METHODS OF OPERATING SAMESeptember 2023May 2025Allow2010NoNo
18241433Alternating Pump GapsSeptember 2023January 2025Allow1610NoNo
18241201ROTARY PRESSURE EXCHANGERAugust 2023July 2025Allow2310YesNo
18458787INRUNNER AXIAL COMPRESSORAugust 2023January 2024Allow510NoNo
18455502IMPELLER FOR AN IMPLANTABLE, VASCULAR SUPPORT SYSTEMAugust 2023August 2025Allow2310YesNo
18454596INSERT AND METHOD FOR MANUFACTURING FLUID PUMPAugust 2023August 2025Allow2411YesNo
18232888PUMPAugust 2023May 2025Allow2110YesNo
18348260DIAPHRAGM PUMP AND LIQUID DISCHARGE APPARATUS INCLUDING DIAPHRAGM PUMPJuly 2023May 2025Allow2210YesNo
18339639FAN MOTORJune 2023October 2025Abandon2720NoNo
18337524COOLING ARRANGEMENT FOR ELECTRIC MACHINESJune 2023January 2025Allow1910NoNo
18209013Radial Inflow Hole GeometryJune 2023May 2025Allow2310YesNo
18255256PUMP SYSTEMMay 2023November 2025Abandon2920YesNo
18326349PISTON PUMP FOR A HIGH PRESSURE CLEANING DEVICEMay 2023February 2025Allow2000NoNo
18325114DIAPHRAGM PUMPMay 2023February 2025Allow2110NoNo
18202490AUXILIARY DEVICE FOR PUMPSMay 2023March 2025Allow2210NoNo
18254557REDUCED SIZE FLUID TRANSFER AND DEPRESSURIZATION APPARATUS, CONTROL, AND ASSOCIATED METHODSMay 2023June 2025Allow2511NoNo
18198096ROTARY PRESSURE EXCHANGERMay 2023January 2026Allow3330NoNo
18315062ELECTRICALLY POWERED DEVICE KIT INCLUDING A CEILING MOUNTING ASSEMBLYMay 2023February 2025Allow2210YesNo
18250113HYDRAULICALLY ACTUATED DOUBLE-ACTING POSITIVE DISPLACEMENT PUMP SYSTEM FOR PRODUCING FLUIDS FROM A WELLBOREApril 2023August 2025Allow2820YesNo
18303897MARINE DRIVES HAVING AN ELECTRIC MOTOR ASSEMBLY AND METHODS FOR MAKING THE SAMEApril 2023September 2025Allow2921NoNo
18302633METERING POSITIVE DISPLACEMENT PUMP STROKE LENGTH LIMITERApril 2023October 2024Allow1800NoNo
18249510PUMP COMPRISING COOLING MEANSApril 2023June 2025Allow2611NoNo
18032124Coupling Unit with Connecting PiecesApril 2023December 2024Allow2010NoNo
18031992MODULAR FLUID PUMP FOR USE IN DIVERSE APPLICATIONSApril 2023April 2025Allow2411NoNo
18300847EXPANDABLE, INNER LINER PUMPApril 2023January 2025Allow2110NoNo
18298996CEILING FANApril 2023March 2025Abandon2310NoNo
18130303CONDENSATE VAPORIZATION SYSTEMApril 2023February 2025Allow2310NoNo
18125332CARTRIDGE SEALING AND ALIGNMENT IN A PRESSURE EXCHANGERMarch 2023August 2025Allow2921YesNo
18122831GAS COMPRESSORMarch 2023July 2024Allow1600NoNo
18184753PISTON COMPRESSORMarch 2023August 2024Allow1700NoNo
18183587SYSTEM AND METHOD TO CONTROL ELECTRICAL SUBMERSIBLE PUMP DURING OIL AND GAS EXPLORATIONSMarch 2023December 2025Abandon3330YesNo
18182685COMPRESSORMarch 2023October 2024Allow1910NoNo
18044815VACUUM PUMP AND ROTATING CYLINDER PROVIDED IN VACUUM PUMPMarch 2023September 2024Allow1810NoNo
18168641Fan and Stator ThereofFebruary 2023February 2025Abandon2410NoNo
18108384Leak-Free, Diffusion-Blocking Check Valve, Pump and MethodFebruary 2023November 2024Allow2101NoNo
18165741SELF-RECHARGING STAND-ALONE MONITORING SYSTEMFebruary 2023April 2025Allow2721YesNo
18018157DUCT FAN IN THE FORM OF A CENTRIFUGAL FANJanuary 2023May 2025Abandon2820NoNo
18100210CONDENSATE PUMP ASSEMBLYJanuary 2023January 2025Allow2411NoNo
18097045BLOWERJanuary 2023June 2024Allow1700NoNo
18095738BLOOD PUMP SHAFT BEARINGJanuary 2023January 2025Allow2420NoNo
18011671CompressorDecember 2022September 2024Allow2110NoNo
18001803LIQUID RING PUMP CONTROLDecember 2022April 2024Allow1600YesNo
18001558VACUUM PUMP AND CONTROLLERDecember 2022August 2024Allow2010NoNo
18075199VARIABLE DISPLACEMENT PUMPSDecember 2022April 2025Allow2811YesNo
18073085PUMP CONTROL SYSTEM CAPABLE OF DETECTING FAULT OF PUMPDecember 2022August 2024Allow2110NoNo
18072037ELECTRIC WATER PUMPNovember 2022January 2025Allow2620YesNo
18000047VACUUM PUMP AND ROTATING BODY FOR VACUUM PUMPNovember 2022July 2024Allow1910NoNo
17992149PERCUTANEOUS CIRCULATORY SUPPORT DEVICE FACILITATING REDUCED HEMOLYSISNovember 2022July 2024Allow1910NoNo
18048703SYSTEM FOR CALIBRATION OF ELECTROHYDRAULIC PUMP START CURRENT BASED ON ENGINE'S OUTPUT TORQUE SIGNALOctober 2022November 2024Allow2510NoNo
18048815Solar Powered Water FeatureOctober 2022August 2024Allow2210YesNo
17961360THIN PUMPOctober 2022July 2024Allow2210NoNo
17916888COATING AGENT PUMP, COATING INSTALLATION AND ASSOCIATED OPERATING METHODOctober 2022November 2025Allow3810NoNo
17959685MOTOR ASSEMBLY AND CLEANER COMPRISING SAMEOctober 2022August 2024Allow2210YesNo
17906129VACUUM PUMP AND VACUUM PUMP COMPONENTSeptember 2022May 2025Allow3230NoNo
17905679FLUID MACHINESeptember 2022January 2025Allow2820NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner HANSEN, KENNETH J.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
7
Examiner Affirmed
3
(42.9%)
Examiner Reversed
4
(57.1%)
Reversal Percentile
82.4%
Higher than average

What This Means

With a 57.1% 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
28
Allowed After Appeal Filing
8
(28.6%)
Not Allowed After Appeal Filing
20
(71.4%)
Filing Benefit Percentile
42.9%
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, 28.6% 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 HANSEN, KENNETH J - Prosecution Strategy Guide

Executive Summary

Examiner HANSEN, KENNETH J works in Art Unit 3746 and has examined 532 patent applications in our dataset. With an allowance rate of 80.6%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 33 months.

Allowance Patterns

Examiner HANSEN, KENNETH J's allowance rate of 80.6% places them in the 51% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by HANSEN, KENNETH J receive 1.89 office actions before reaching final disposition. This places the examiner in the 45% percentile for office actions issued. This examiner issues fewer office actions than average, which may indicate efficient prosecution or a more lenient examination style.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by HANSEN, KENNETH J is 33 months. This places the examiner in the 49% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +9.1% benefit to allowance rate for applications examined by HANSEN, KENNETH J. This interview benefit is in the 41% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 31.3% of applications are subsequently allowed. This success rate is in the 64% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 35.0% of cases where such amendments are filed. This entry rate is in the 52% percentile among all examiners. Strategic Recommendation: This examiner shows above-average receptiveness to after-final amendments. If your amendments clearly overcome the rejections and do not raise new issues, consider filing after-final amendments before resorting to an RCE.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 44.4% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 41% 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 73.1% of appeals filed. This is in the 62% percentile among all examiners. Of these withdrawals, 21.1% 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, 45.1% are granted (fully or in part). This grant rate is in the 39% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.2% of allowed cases (in the 52% 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 0.9% of allowed cases (in the 60% 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:

    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.