Login with your work email address to view charts. No credit card required.
| Art Unit: | 3763 — Heat exchange |
|---|---|
| Group: | 3760 — Refrigeration, Vaporization, Ventilation, and Combustion |
| Classes: |
220 — Receptacles 137 — Fluid handling 141 — Fluent material handling, with receiver or receiver coacting means 165 — Heat exchange 248 — Supports 422 — Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing 290 — Prime-mover dynamo plants 211 — Supports: racks 505 — Superconductor technology: apparatus, material, process 703 — Data processing: structural design, modeling, simulation, and emulation |
| Phone: | (571) 272-0771 |
| Email: | john.pettitt@uspto.gov |
| Location: | VA 22314 |
| Title: | Pat Examnr Mechl Engrg |
| Service: | 20 years |
| Grade: | GS-14 |
| 3-Year Grant rate: | 24% over 222 cases |
|---|---|
| Difficulty: | Extremely Hard |
| Difficulty Percentile: | 92nd
|
With Examiner Pettitt, you have a 24% chance of getting an issued patent by 3 years after the first office action. Examiner Pettitt is an extremely hard examiner and in the 92nd percentile across all examiners (with 100th percentile most difficult).
Below is the grant rate timeline for Examiner Pettitt, where the timeline is relative to the date of the first office action. The three-year grant rate is the percentage of applications granted at three years after the first office action.
Examiner Pettitt's grant rate is lower than that of Art Unit 3763 and lower than that of the USPTO.
| Average Office Actions Per Grant | |
|---|---|
| Examiner Pettitt | 2.4 |
| Art Unit 3763 | 1.5 |
Examiner Pettitt has granted 37 of 160 cases without any applicant-requested interviews for a grant rate of 23%.
Examiner Pettitt has granted 17 of 62 cases with at least one applicant-requested interview for a grant rate of 27%.
With Examiner Pettitt, conducting an interview increases your chance of getting a patent granted by 17%.
| Number | Title | OA Rejections | Status | IFW |
|---|---|---|---|---|
| 18685938 | Hydrogen Storage-Compression System | Rejection information available with a Premium Stats subscription. See our pricing. | Abandoned | View |
| 18565968 | Method And Plant For Hydrogen Liquefaction | Abandoned | View | |
| 18503507 | Apparatus, System And Method For Heat And Cold Recovery Onboard A Floating Storage Regasification Unit | Abandoned | View | |
| 18134758 | Nitrogen Generating Device And Nitrogen Generating Method | Patented | View | |
| 16492645 | Thermally Insulating Sealed Tank Comprising A Reinforcing Insulating Plug | Patented | View | |
| 16634673 | Fluid Supply Device And Fluid Supply Method | Abandoned | View | |
| 18788094 | Energy Storage Energy System | Abandoned | View | |
| 16979648 | Air Conditioner Having Humidifier | Patented | View | |
| 16412528 | Vacuum Vessel | Abandoned | View | |
| 16615748 | Boil-Off Gas Reliquefaction System | Abandoned | View | |
| 17875128 | Methods And Systems For Natural Gas Purification Integrated With Gas Compression | Abandoned | View | |
| 18023715 | A Hydrogen Or Helium Throttling Liquefaction System Using Direct Current Flow From The Cold And Hot Ends Of The Regenerative Cryocoolers | Patented | View | |
| 16113215 | System And Method For Natural Gas Liquid Production With Flexible Ethane Recovery Or Rejection | Patented | View | |
| 17558524 | Apparatus And Process For Liquefying Gases | Patented | View | |
| 18030379 | Method For Supplying Cryogenic Fluid To A User Station, In Particular A Machining Station | Abandoned | View | |
| 18315798 | Cryogenic Storage System | Abandoned | View | |
| 17974768 | Gas Processing Methodology Utilizing Reflux And Additionally Synthesized Stream Optimization | Abandoned | View | |
| 16405118 | Method For Synthesis Gas Purification | Abandoned | View | |
| 17567030 | Integrated Compression And Membrane Separation Process For Removal Of Co2 From Raw Natural Gas | Abandoned | View | |
| 17854466 | Method And Apparatus For Cooling In Liquefaction Process | Abandoned | View | |
| 16657292 | Dewar Tipper | Abandoned | View | |
| 17985280 | Refrigeration System | Abandoned | View | |
| 17481055 | Apparatus For The Separation Of Air By Cryogenic Distillation Comprising Three Columns, Including Two Concentric Columns | Abandoned | View | |
| 17580830 | Method For Flexible Recovery Of Argon From A Cryogenic Air Separation Unit | Abandoned | View | |
| 17580860 | System And Method For Flexible Recovery Of Argon From A Cryogenic Air Separation Unit | Abandoned | View | |
| 18038386 | Method And System For Assisting The Management Of A Liquefied Gas Transport Ship Of The Type Consuming Evaporated Gas For Its Propulsion | Patented | View | |
| 16966303 | Air-Conditioning Light-Emitting System | Abandoned | View | |
| 17393477 | Phase Implementation Of Natural Gas Liquid Recovery Plants | Patented | View | |
| 16732002 | Conduit Seal Assembly | Abandoned | View | |
| 16297000 | Systems And Methods For Lng Refrigeration And Liquefaction | Patented | View | |
| 17073579 | Solid State Hydrogen Storage Device Including Plate Type Heat Exchanger | Abandoned | View | |
| 16207404 | Method And Device For Precooling A Cryostat | Patented | View | |
| 18288785 | Dynamic Acoustic Impedance Matching For Cryocoolers | Abandoned | View | |
| 17555292 | Enclosure And Method For Constructing An Enclosure Of An Apparatus For Separation By Cryogenic Distillation | Abandoned | View | |
| 16956755 | Device And System For Condensing Gas | Abandoned | View | |
| 17515475 | Methods For Fabricating Pressure Vessels | Patented | View | |
| 17863775 | Boil-Off Gas Reliquefaction Method And System For Lng Vessel | Abandoned | View | |
| 17887999 | Automatic Vegetation Watering Apparatus And Method | Patented | View | |
| 18400598 | Methane Retention System | Abandoned | View | |
| 18400238 | Methane Retention System | Abandoned | View | |
| 17940482 | Boil-Off Gas Reliquefaction System | Patented | View | |
| 17930489 | Full Liquid-Product Air Separation Equipment And Process Therefor | Abandoned | View | |
| 17326126 | Method For Cooling A System In The 120k To 200k Range | Abandoned | View | |
| 18651663 | Lng Gas Supply Systems For Ships | Patented | View | |
| 17310346 | Method And Filling Device For Filling A Transport Tank | Abandoned | View | |
| 16260288 | Configurations And Methods For Ngl Recovery For High Nitrogen Content Feed Gases | Patented | View | |
| 17218311 | Mobile Liquefaction Plant For Liquefying Helium, Associated System, And Associated Use Of The System | Abandoned | View | |
| 17208210 | Helium Circulation System, Cryogenic Refrigeration Method, And Biomagnetism Measuring Apparatus | Abandoned | View | |
| 17381404 | Air Separation Apparatus, Adsorber, And Method | Patented | View | |
| 17187956 | Method And Apparatus For Cooling Down A Cryogenic Heat Exchanger And Method Of Liquefying A Hydrocarbon Stream | Abandoned | View |
Subscribe to Premium Examiner Statistics for unlimited access for your law firm.
Disclaimer: We do not provide any guarantees as to the accuracy of the statistics presented above and under
no circumstances will we be liable for any outcome resulting from your reliance on the above statistics.