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
18946862NOVEL BIDIRECTIONAL BLOWING FIREPLACE FANNovember 2024March 2025Allow410NoNo
18663792FAN MODULE, MAIN DRIVE MODULE AND FOLDABLE HANDHELD FAN USING THE SAMEMay 2024April 2025Allow1111NoNo
18640108BLOOD PUMP WITH IMPROVED LEAKAGE CONTROLApril 2024May 2025Allow1300NoNo
18682528PURGE APPARATUS AND PURGE METHODFebruary 2024June 2025Allow1600NoNo
18421213NECK FANJanuary 2024May 2024Allow410NoNo
18407696BIDIRECTIONAL AIR PUMPJanuary 2024July 2024Allow610NoNo
18285038Electric Motor With Cooling ArrangementSeptember 2023April 2025Allow1910NoNo
18283232MULTISTAGE FLUID COMPRESSORSeptember 2023April 2025Allow1810NoNo
18370044CEILING FAN WITH CANOPY MOUNTING ASSEMBLYSeptember 2023November 2024Allow1400NoNo
18243213AXIAL PISTON VARIABLE DISPLACEMENT HYDRAULIC DEVICES, SUCH AS HYDRAULIC MOTORS, AND METHODS OF OPERATING SAMESeptember 2023May 2025Allow2010NoNo
18241433Alternating Pump GapsSeptember 2023January 2025Allow1610NoNo
18458787INRUNNER AXIAL COMPRESSORAugust 2023January 2024Allow510NoNo
18232888PUMPAugust 2023May 2025Allow2110YesNo
18348260DIAPHRAGM PUMP AND LIQUID DISCHARGE APPARATUS INCLUDING DIAPHRAGM PUMPJuly 2023May 2025Allow2210YesNo
18337524COOLING ARRANGEMENT FOR ELECTRIC MACHINESJune 2023January 2025Allow1910NoNo
18209013Radial Inflow Hole GeometryJune 2023May 2025Allow2310YesNo
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
18315062ELECTRICALLY POWERED DEVICE KIT INCLUDING A CEILING MOUNTING ASSEMBLYMay 2023February 2025Allow2210YesNo
18249510PUMP COMPRISING COOLING MEANSApril 2023June 2025Allow2611NoNo
18302633METERING POSITIVE DISPLACEMENT PUMP STROKE LENGTH LIMITERApril 2023October 2024Allow1800NoNo
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
18122831GAS COMPRESSORMarch 2023July 2024Allow1600NoNo
18184753PISTON COMPRESSORMarch 2023August 2024Allow1700NoNo
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
17959685MOTOR ASSEMBLY AND CLEANER COMPRISING SAMEOctober 2022August 2024Allow2210YesNo
17906129VACUUM PUMP AND VACUUM PUMP COMPONENTSeptember 2022May 2025Allow3230NoNo
17905679FLUID MACHINESeptember 2022January 2025Allow2820NoNo
17895899CLEANING DEVICEAugust 2022June 2024Allow3010NoNo
17891550WOBBLE PLATE PISTONWATER PUMP FOR USE INA LOW FLOW GAS PRESSURE WASHER OR A LOW CURRENT ELECTRIC PRESSURE WASHERAugust 2022November 2024Allow2720NoNo
17798540PISTON MONITORING ASSEMBLYAugust 2022June 2024Allow2210NoNo
17879941PISTON SYSTEM AND HIGH PRESSURE HOMOGENIZER USING THE PISTON SYSTEMAugust 2022May 2024Allow2110NoNo
17878991Pressure exchangerAugust 2022January 2025Allow2921YesNo
17876904WOBBLE PLATE PISTONWATER PUMP FOR USE INA LOW FLOW GAS PRESSURE WASHER OR A LOW CURRENT ELECTRIC PRESSURE WASHERJuly 2022March 2024Allow6010NoNo
17877246ECONOMIZER INJECTION IN A RECIPROCATING COMPRESSORJuly 2022January 2025Allow3021NoNo
17795973BEARING COOLER FOR A CENTRIFUGAL FANJuly 2022November 2023Allow1610YesNo
17793792ROTARY COMPRESSORJuly 2022November 2024Allow2820NoNo
17793263COMPRESSORJuly 2022February 2024Allow1900NoNo
17812900FLUIDIC METHODS AND DEVICESJuly 2022October 2024Allow2730NoNo
17793003ROTATING DEVICE AND VACUUM PUMPJuly 2022December 2023Abandon1701NoNo
17861748TURBO-MACHINE ARRANGEMENTJuly 2022April 2024Allow2210NoNo
17791068VACUUM PUMPJuly 2022May 2024Allow2210NoNo
17853369COMPRESSORJune 2022August 2024Allow2620YesNo
17790067PUMP FOR USE IN A VACUUM CLEANERJune 2022February 2025Abandon3140YesNo
17847845AXIAL FLOW BLOWERJune 2022December 2023Allow1710NoNo
17840400RADIALLY COUPLED PUMP SYSTEMS FOR PRESSURIZING FLUID IN CLOSED LOOP SYSTEMSJune 2022September 2023Allow1600NoNo
17839734CENTRIFUGAL COMPRESSOR AND REFRIGERATION SYSTEMJune 2022December 2023Allow1810NoNo
17750941CONTAINING FLUID LEAKS ON ADDITIVE PUMPSMay 2022August 2023Allow1510NoNo
17742036Regenerative blowerMay 2022November 2024Allow3130YesNo
17739027BLOOD PUMPSMay 2022October 2022Allow610YesNo
17738597STATOR SAVER ARRANGEMENT FOR CANNED MOTOR PUMPMay 2022January 2024Allow2111NoNo
17734279CEILING FAN WITH MOUNTING ASSEMBLYMay 2022March 2023Allow1000YesNo
17732705INTELLIGENT BUILT-IN AIR PUMPApril 2022October 2023Allow1810YesNo
17755224BLOWERApril 2022August 2023Allow1610NoNo
17768866USE OF A FILTER MODULE FOR FILTERING A BIOTECHNICAL LIQUID AND FILTER MODULE FOR THE FILTRATION OF A BIOTECHNICAL LIQUIDApril 2022December 2024Allow3240NoNo
17718967COMPRESSOR WITH MOTOR COOLING IMPELLERApril 2022August 2023Allow1710NoNo
17715485Pumping Efficiency Apparatus And MethodApril 2022March 2025Allow3530NoNo
17713695INTRAVASCULAR BLOOD PUMP ROTORApril 2022August 2023Allow1610NoNo
17710420ELECTROMAGNETIC ROTARY DRIVE, A CENTRIFUGAL PUMP AND A PUMP UNITMarch 2022April 2024Allow2411NoNo
17762992VACUUM PUMPMarch 2022March 2024Allow2330NoNo
17654321BOUNDARY LAYER POWERED CIRCULATORY ASSIST DEVICEMarch 2022August 2023Allow1701NoNo
17640149VACUUM PUMP AND VACUUM PUMP SYSTEMMarch 2022July 2023Allow1610NoNo
17637594Diaphragm PumpFebruary 2022March 2024Allow2510NoNo
17637351Method for Monitoring the State of a Device and DeviceFebruary 2022February 2024Allow2410NoNo
17591191MOTOR AND BEARING COOLING PATHSFebruary 2022August 2023Allow1810NoNo
17588991NON-OCCLUDING INTRAVASCULAR BLOOD PUMP PROVIDING REDUCED HEMOLYSISJanuary 2022April 2024Allow2730NoNo
17630363SUBMERSIBLE PUMP SYSTEM, INFORMATION PROCESSING DEVICE, AND COMPUTER PROGRAMJanuary 2022May 2024Allow2811NoNo
17629909INTEGRATED ELECTRIC-TO-HYDRAULIC CONVERSION MACHINEJanuary 2022August 2024Allow3120NoNo
17580913FLUID DELIVERY DEVICE, TRANSCUTANEOUS ACCESS TOOL AND FLUID DRIVE MECHANISM FOR USE THEREWITHJanuary 2022December 2024Allow3500YesNo
17574606REFRIGERANT COMPRESSOR INCLUDING INSULATION FOR MAGNETIC BEARING ASSEMBLYJanuary 2022May 2023Allow1610NoNo
17647483Axial Piston Machine with High Drive Rotational SpeedJanuary 2022April 2023Allow1610YesNo
17647512COOLING ARRANGEMENT FOR ELECTRIC MACHINESJanuary 2022June 2023Allow1701NoNo
17623788MOTOR AND AIR CONDITIONER USING THE SAMEDecember 2021September 2023Allow2020NoNo
17550548SYSTEM INCLUDING RECOVERY PUMP AND VACUUM PUMPDecember 2021December 2024Allow3621NoNo
17551000ELECTRICAL SUBMERSIBLE PUMP LUBRICANT AND COOLANTDecember 2021December 2023Allow2420YesNo

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
82.3%
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
40.0%
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 622 patent applications in our dataset. With an allowance rate of 82.6%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 31 months.

Allowance Patterns

Examiner HANSEN, KENNETH J's allowance rate of 82.6% places them in the 49% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by HANSEN, KENNETH J receive 1.78 office actions before reaching final disposition. This places the examiner in the 54% 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 HANSEN, KENNETH J is 31 months. This places the examiner in the 38% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +7.1% benefit to allowance rate for applications examined by HANSEN, KENNETH J. This interview benefit is in the 37% 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, 32.2% of applications are subsequently allowed. This success rate is in the 60% 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 36.9% of cases where such amendments are filed. This entry rate is in the 48% 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, 44.4% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 38% 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 57% 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, 45.3% are granted (fully or in part). This grant rate is in the 50% 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 0.2% of allowed cases (in the 48% 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 1.2% of allowed cases (in the 58% 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.