USPTO Examiner BOBISH CHRISTOPHER S - Art Unit 3746

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19117504TREATMENT OF NON-AXISYMMETRIC CASING WITH CONTROLLED OPENINGApril 2025November 2025Allow700NoNo
19071580Strain-Actuated Microfluidic Pump SensorMarch 2025December 2025Allow1010NoNo
19058442FLUID ENDFebruary 2025November 2025Allow920NoNo
19046707MODULAR POWER ENDFebruary 2025October 2025Allow920NoNo
18920324THERMISTOR FLOW PATHOctober 2024January 2026Allow1510NoNo
18778158CYLINDER DEVICE FOR LINEAR COMPRESSOR INSTALLED WITH LINEAR PISTONJuly 2024January 2026Abandon1810NoNo
18776780SYSTEMS AND METHODS TO AUTONOMOUSLY OPERATE HYDRAULIC FRACTURING UNITSJuly 2024October 2025Allow1510NoNo
18637780REDUCED HEAT EXCHANGE RECIPROCATING COMPRESSORApril 2024September 2025Allow1710NoNo
18702208RECIPROCATING COMPRESSORApril 2024January 2026Allow2110NoNo
18636695Mechanical liquid piston slow expansion compressorApril 2024September 2025Allow1710YesNo
18603692THERMISTOR FLOW PATHMarch 2024January 2025Allow1010NoNo
18584451DAMPED MOBILE COMPRESSORFebruary 2024August 2025Allow1720NoNo
18681094HERMETIC COMPRESSORFebruary 2024August 2025Allow1810NoNo
18407972AXIAL DIRECT DRIVE SEALLESS PUMP OR TURBINE WITH DEFORMATION-RESISTANT COVER PLATEJanuary 2024January 2026Allow2510NoNo
18406870APPARATUSES, SYSTEMS, AND METHODS FOR ADJUSTING THE EFFECTIVE STROKE-LENGTH OF A POSITIVE DISPLACEMENT PUMPJanuary 2024November 2025Abandon2310NoNo
18402518SYSTEMS AND METHODS TO OPERATE A DUAL-SHAFT GAS TURBINE ENGINE FOR HYDRAULIC FRACTURINGJanuary 2024December 2025Allow2330NoNo
18401926PUMP AND PUMP ASSEMBLYJanuary 2024March 2025Allow1420NoNo
18544273MODULAR OPEN-AIR SKID WITH ELECTRICAL VARIABLE FREQUENCY DRIVE FOR NATURAL GAS COMPRESSIONDecember 2023October 2025Abandon2210NoNo
18569380LINEAR MOTOR, COMPRESSOR EQUIPPED WITH LINEAR MOTOR, REFRIGERATOR EQUIPPED WITH COMPRESSOR, AND VEHICLE AIR SUSPENSION EQUIPPED WITH COMPRESSORDecember 2023September 2025Allow2110NoNo
18535939TWO-STAGE PUMP AND METHOD OF OPERATIONDecember 2023July 2025Allow1910NoNo
18529989SELF CALIBRATING PERISTALTIC PUMP WITH REDUCED FLUID PULSESDecember 2023August 2025Allow2010NoNo
18516076HIGH-PRESSURE, HIGH-FLOW INFLATABLE MOVEMENTNovember 2023April 2025Allow1710NoNo
18562446COMPRESSOR AND MANUFACTURING METHOD THEREFORNovember 2023December 2025Abandon2510NoNo
18485820SCROLL COMPRESSOROctober 2023September 2025Allow2320YesNo
18483871FLUID ENDOctober 2023October 2024Allow1220NoNo
18377934PUMP CONTROLLER ASSEMBLYOctober 2023November 2025Allow2520YesNo
18481528CORDLESS COMPRESSOROctober 2023October 2024Allow1210NoNo
18371241COMPRESSOR INCLUDING REFRIGERANT INTRODUCTION TUBESeptember 2023October 2025Allow2520NoNo
18550365ELECTRIC COMPRESSORSeptember 2023July 2025Allow2210NoNo
18549027ELECTRIC COMPRESSORSeptember 2023August 2025Allow2320NoNo
18459864THERMISTOR FLOW PATHSeptember 2023July 2024Allow1110NoNo
18453257HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODSAugust 2023July 2024Allow1110NoNo
18365214CENTRIFUGAL-TYPE ELECTRIC REFRIGERANT COMPRESSOR HAVING INTEGRAL ORIFICE-REGULATED BEARING COOLING ARRANGEMENTAugust 2023February 2026Allow3130NoNo
18360678FRACTURING APPARATUS AND CONTROL METHOD THEREOF, FRACTURING SYSTEMJuly 2023August 2024Allow1310NoNo
18357281INFLATION PUMP AND INFLATION DEVICEJuly 2023February 2025Abandon1931YesNo
18224148PUMP BODY ASSEMBLY AND BOOSTER ENERGY-SAVING WATER PUMP WITH THE SAMEJuly 2023June 2025Abandon2310NoNo
18261915Pump DeviceJuly 2023January 2026Allow3020NoNo
18338903PUMP MONITORING SYSTEM AND METHODJune 2023March 2026Allow3330NoNo
18210652HYDRAULIC END ASSEMBLY STRUCTURE OF A PLUNGER PUMPJune 2023September 2024Allow1520YesNo
18331268ELECTRIC COMPRESSORJune 2023November 2025Allow3010NoNo
18207100LINEAR COMPRESSORJune 2023October 2024Allow1600NoNo
18205602SYSTEMS AND METHODS TO AUTONOMOUSLY OPERATE HYDRAULIC FRACTURING UNITSJune 2023April 2024Allow1010NoNo
18203391BREATHER TUBE FOR LABYRINTH SEAL CHAMBERMay 2023June 2025Allow2410NoNo
18325410THERMISTOR FLOW PATHMay 2023April 2025Allow2320NoNo
18140139VEHICLE ASSEMBLY COMPRISING A PRESSURE EQUALIZATION ELEMENTApril 2023January 2026Abandon3221NoNo
18138319SYSTEMS AND METHODS TO OPERATE A DUAL-SHAFT GAS TURBINE ENGINE FOR HYDRAULIC FRACTURINGApril 2023December 2023Allow710NoNo
18136884IMMERSION COOLING SYSTEM AND DELIVERY DEVICE THEREOFApril 2023January 2026Abandon3320NoNo
18031502ELECTRIC OIL PUMPApril 2023July 2025Allow2720NoNo
18298240HOLLOW ELECTRICAL SUBMERSIBLE PUMP FOR UNLIMITED WELLBORE INTERVENTIONApril 2023August 2025Allow2810YesNo
18248457INSTRUMENTED FRACTURING PUMP SYSTEMS AND METHODSApril 2023January 2025Allow2120YesNo
18193347ADDITIVELY MANUFACTURED SELF-SUPPORTING ASYMMETRIC VALVE CORESMarch 2023January 2026Abandon3420YesNo
18124721SYSTEMS AND METHODS TO AUTONOMOUSLY OPERATE HYDRAULIC FRACTURING UNITSMarch 2023May 2023Allow200NoNo
18245580BENT AXIS PLUNGER-TYPE VARIABLE HYDRAULIC MOTOR PUMPMarch 2023October 2024Allow1910NoNo
18184756TURBOMACHINE WITH COOLANT JACKET AND TURBULATOR INSERT MEMBERMarch 2023February 2025Allow2311NoNo
18026362GAS COMPRESSORMarch 2023April 2025Allow2510NoNo
18179055ELECTROSTATIC MICRO-PUMP AND A PROCESS TO PRODUCE AN ELECTROSTATIC MICRO-PUMPMarch 2023August 2025Allow2921YesNo
18024341VARIABLE-DISPLACEMENT SWASH PLATE TYPE COMPRESSORMarch 2023March 2025Allow2420YesNo
18175986FLUID SYSTEM WITH A PROPPANT MIXING PUMPFebruary 2023December 2025Allow3320YesNo
18042696CONTROL OF OPERATING LIQUID FLOW INTO A LIQUID RING PUMPFebruary 2023June 2024Allow1600NoNo
18112033MECHANICALLY DRIVEN MODULAR DIAPHRAGM PUMPFebruary 2023October 2023Allow810NoNo
18042140A DUAL GEROTOR APPARATUS, A POWERTRAIN ASSEMBLEY AND AN ELECTRIFIED VEHICLEFebruary 2023February 2025Allow2320NoNo
18165430PRE-PRESSURIZED SYSTEM WITH REVERSE ROTATION OF PUMP FOR VALVE ACTUATIONFebruary 2023August 2025Allow3110NoNo
18105914SUCTION DEVICE AND METHOD FOR OPERATING A SUCTION DEVICEFebruary 2023December 2024Abandon2210NoNo
18096932HIGH TURN DOWN RATIO DIRECT CONTROL FOR VARIABLE DISPLACEMENT PUMPSJanuary 2023January 2025Allow2410YesNo
18090301COMPRESSORDecember 2022April 2024Allow1630NoNo
18089085Rotary Pump Conversion Unit for a Drywall PumpDecember 2022October 2024Abandon2210NoNo
18087181SYSTEMS AND METHODS TO AUTONOMOUSLY OPERATE HYDRAULIC FRACTURING UNITSDecember 2022March 2023Allow300NoNo
18012030LINEAR COMPRESSORDecember 2022May 2025Allow2910NoNo
18011431LINEAR COMPRESSORDecember 2022January 2025Allow2520NoNo
18064699SYSTEMS AND METHODS TO OPERATE A DUAL-SHAFT GAS TURBINE ENGINE FOR HYDRAULIC FRACTURINGDecember 2022April 2023Allow400NoNo
17993354ELECTRIC COMPRESSORNovember 2022December 2024Allow2520NoNo
18057149IMPELLER FOR WATER PUMPNovember 2022November 2024Abandon2310NoNo
17989607HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODSNovember 2022June 2023Allow710NoNo
17989406Water Heater Blower Housing, Impeller, and Static Tap SystemNovember 2022September 2023Allow1010NoNo
17952979PUMP DRIVE SYSTEMSeptember 2022February 2026Allow4141YesNo
17907041HERMETIC ELECTRIC COMPRESSORSeptember 2022June 2024Allow2110NoNo
17906703PUMP WITH VARIABLE SUCTION/DISCHARGE AMOUNT AND DRIVE DEVICE COMPOSED OF THE PUMP AND DRIVING METHOD THEREOFSeptember 2022April 2025Abandon3120NoNo
17943328VACUUM PUMPSeptember 2022October 2025Allow3740YesNo
17942382SYSTEMS AND METHODS TO AUTONOMOUSLY OPERATE HYDRAULIC FRACTURING UNITSSeptember 2022December 2022Allow300NoNo
17903276AUTO-ENGAGEABLE COUPLING FOR PREVENTING TRANSMISSION OF REVERSE ROTATION TO ESP MOTORSSeptember 2022October 2025Allow3721YesNo
17902328FLUID ENDSeptember 2022June 2023Allow910NoNo
17901112HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODSSeptember 2022July 2023Allow1120NoNo
17893418THERMISTOR FLOW PATHAugust 2022June 2023Allow1010NoNo
17821401PUMP HAVING OPPOSING MAGNETS BETWEEN A ROTOR AND STATOR, AND RELATED ASSEMBLIES, SYSTEMS, AND METHODSAugust 2022February 2024Allow1720YesNo
17891201MOTOR VEHICLE COOLING SYSTEM WITH AN ELECTRIC COOLANT PUMPAugust 2022December 2024Allow2821NoNo
17797749COMPRESSORAugust 2022November 2024Allow2720YesNo
17796038MULTI-PIPING SPIRAL-PUMP FOR TREATING FOOD ITEMSJuly 2022March 2026Allow4321NoNo
17865960PERISTALTIC PUMP HAVING TEMPERATURE-COMPENSATED VOLUMETRIC DELIVERYJuly 2022January 2024Allow1810NoNo
17757577HERMETICALLY ENCAPSULATED REFRIGERANT COMPRESSORJune 2022January 2024Allow1900NoNo
17757608HERMETICALLY ENCAPSULATED REFRIGERANT COMPRESSORJune 2022August 2024Abandon2601NoNo
17836604AIR COMPRESSORJune 2022August 2023Allow1410NoNo
17836196Turbine Fracturing Apparatus and Turbine Fracturing Well SiteJune 2022February 2025Allow3220NoNo
17833861High Volume, Low Pressure Oilless PumpJune 2022August 2025Allow3920YesNo
17664578HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODSMay 2022December 2022Allow721YesNo
17748635HYDRAULIC FRACTURING PUMP APPARATUS AND METHOD FOR DRIVING SAMEMay 2022August 2025Abandon3930NoNo
17746734Air compressorMay 2022August 2023Allow1510NoNo
17745086DUAL PUMP SMART CONTROL SYSTEMMay 2022June 2023Allow1300NoNo
17776681ROTOR, MOTOR, PUMP, REFRIGERATION CYCLE APPARATUS, AND MANUFACTURING METHOD OF ROTORMay 2022June 2025Abandon3710NoNo
17739143AIR COMPRESSORMay 2022July 2023Allow1410NoNo
17775194PERISTALTIC PUMP WITH ONE-PIECE PUMP BODY AND FACILITATED ASSEMBLYMay 2022June 2024Abandon2610NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner BOBISH, CHRISTOPHER S.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
21
Examiner Affirmed
14
(66.7%)
Examiner Reversed
7
(33.3%)
Reversal Percentile
55.1%
Higher than average

What This Means

With a 33.3% 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
51
Allowed After Appeal Filing
10
(19.6%)
Not Allowed After Appeal Filing
41
(80.4%)
Filing Benefit Percentile
24.1%
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, 19.6% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

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 BOBISH, CHRISTOPHER S - Prosecution Strategy Guide

Executive Summary

Examiner BOBISH, CHRISTOPHER S works in Art Unit 3746 and has examined 883 patent applications in our dataset. With an allowance rate of 58.7%, this examiner allows applications at a lower rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 39 months.

Allowance Patterns

Examiner BOBISH, CHRISTOPHER S's allowance rate of 58.7% places them in the 19% 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 BOBISH, CHRISTOPHER S receive 2.47 office actions before reaching final disposition. This places the examiner in the 72% 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 BOBISH, CHRISTOPHER S is 39 months. This places the examiner in the 28% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +33.9% benefit to allowance rate for applications examined by BOBISH, CHRISTOPHER S. This interview benefit is in the 82% 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, 20.8% of applications are subsequently allowed. This success rate is in the 23% 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 32.4% 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, 66.7% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 57% 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 57.1% of appeals filed. This is in the 31% percentile among all examiners. Of these withdrawals, 46.4% 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, 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 2.7% of allowed cases (in the 78% 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 0.0% of allowed cases (in the 47% 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.
  • 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.
  • 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.