Listed by the USPTO as PETTITT, JOHN F
Tech Center 3700 • Art Units: 3744 3763
This examiner grants 26% of resolved cases
John F. Pettitt manages a challenging docket in Art Unit 3744 with 700 resolved cases and an allowance rate of 25.9 percent. The median days to allowance is 1742, which is a very long timeline for applicants like L'Air Liquide, Ember Lifesciences Inc., and the President and Fellows of Harvard College. This combination of a low allowance rate and high pendency suggests a rigorous and protracted examination process in Tech Center 3700.
Despite the low base allowance rate, the interview lift of 21.6 percent indicates that direct engagement is a critical strategy. This lift suggests that interviews can significantly improve the odds of success, even if the overall rate remains at 25.9 percent. Firms such as EDELL, SHAPIRO & FINNAN, LLC, Knobbe, Martens, Olson & Bear, LLP, and Clark+Elbing LLP must be prepared for the 1742-day median duration and should consider interviews as a primary tool for overcoming rejections.
| App # | Title | Status | Assignee |
|---|---|---|---|
| 16979621 | VACUUM ADIABATIC BODY AND REFRIGERATOR | Final Rejection | LG ELECTRONICS INC. |
| 18164660 | CRYOGENIC LIQUID TANK FOR AN AIRCRAFT AND METHOD FOR MANUFACTURING THE SAME | Final Rejection | Airbus SAS |
| 18755225 | COOLING APPARATUS, ENERGY STORAGE SYSTEM INCLUDING SAME, AND METHOD OF COOLING ENERGY STORAGE SYSTEM | Final Rejection | Samsung SDI Co., Ltd. |
| 17947426 | SOLID-STATE REFRIGERATION APPARATUS | Non-Final OA | DAIKIN INDUSTRIES, LTD. |
| 18796792 | DEVICE, FACILITY AND METHOD FOR KEEPING A LIQUEFIED GAS STORE COLD | Non-Final OA | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 18709541 | CRYOGENIC PUMPING SYSTEM AND INNOVATIVE INTEGRATION FOR SUB-KELVIN CRYOGENICS BELOW 1.5K | Non-Final OA | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 18411328 | PROCESS AND APPARATUS FOR SEPARATING A MIXTURE OF HYDROGEN AND CARBON DIOXIDE | Final Rejection | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 18227387 | ENCLOSURE FOR A COLUMN FOR LOW-TEMPERATURE DISTILLATION | Non-Final OA | L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude |
| 18016626 | ARGON ENHANCING METHOD AND DEVICE | Non-Final OA | L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude |
| 18826883 | METHODS, COMPOSITIONS AND SYSTEMS FOR SOLID-STATE BAROCALORIC APPLICATIONS | Non-Final OA | President and Fellows of Harvard College |
| 18285899 | METHODS, COMPOSITIONS AND SYSTEMS FOR SOLID-STATE BAROCALORIC APPLICATIONS | Non-Final OA | President and Fellows of Harvard College |
| 18965722 | CRYOPUMP | Non-Final OA | SUMITOMO HEAVY INDUSTRIES, LTD. |
| 18523917 | PULSE TUBE CRYOCOOLER AND METHOD FOR COOLING DOWN PULSE TUBE CRYOCOOLER | Final Rejection | SUMITOMO HEAVY INDUSTRIES, LTD. |
| 18524665 | REFRIGERANT SUPPLY TO A COOLING FACILITY | Non-Final OA | ConocoPhillips Company |
| 18402058 | SYSTEM AND METHOD FOR COMBINED LIQUEFACTION AND DENSIFICATION OF OXYGEN | Final Rejection | PRAXAIR TECHNOLOGY, INC. |
| 18259126 | INTEGRATED SYSTEM FOR ACCUMULATING POWER OR FOR GENERATING ELECTRIC POWER AND NATURAL GAS | Non-Final OA | SAIPEM S.P.A. |
| 18219808 | SYSTEM AND METHOD FOR RECONDENSING BOIL-OFF GAS FROM A LIQUEFIED NATURAL GAS TANK | Final Rejection | Honeywell LNG LLC |
| 18524144 | STEAM SUPPLY SYSTEM AND STEAM SUPPLY METHOD FOR CAPTURING CARBON DIOXIDE SHIP ONBOARD USING ENGINE exhaust gas HEAT SOURCE AND HEAT PUMP UNDER 150°C | Non-Final OA | KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY |
| 18530483 | METHOD FOR PRESSURIZING A LIQUID EXITING A PHASE SEPARATOR | Final Rejection | Air Liquide Large Industries U.S. LP |
IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.
Build Your Strategy25.9% of resolved applications examined by John F Pettitt were allowed (700 resolved cases), compared with 0.0% across Art Unit 3744 over the last five years.
This examiner's interview lift is +21.6 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.
Applications allowed by John F Pettitt took 1,742 days on average from filing to allowance.
John F Pettitt examines applications in Art Unit 3744 in Tech Center 3700 (Medical Devices & Mechanical Engineering).
