Technology areas: Chemistry & Materials • Medical Devices & Mechanical Engineering
12 pending office actions • 8 art units • 12 examiners • 0 of 12 (0%) have an AI response strategy ready • 17 patents granted in the last 365 days
Praxair Technology Inc. has 12 pending office actions in Medical Devices & Mechanical Engineering. The actions involve 12 distinct examiners and 8 distinct art units, showing that examiner assignments are fully distributed while some art units contain more than one matter. This structure calls for tracking at both levels, with art units providing useful technical grouping and examiners requiring individualized prosecution histories.
SULLENS, TAVIA L is the busiest examiner, with 1 pending matter. No examiner has more than one listed action, so the docket does not identify a dominant examiner relationship. Counsel should coordinate shared device terminology and disclosure positions across the portfolio, but assess each response independently because the examiner-level assignments are separate.
Based on the USPTO statutory response window for each pending office action. 4 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.
Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 4 of the docket's apps have a known mailing date.
Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.
| Bucket | Cases |
|---|---|
| §103 only | 4 (33%) |
| Multi-statute (no §101) | 8 (67%) |
How the docket's pending cases split across USPTO tech-center bands.
Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.
| Examiner | Apps on this docket | Allow rate | Interview lift |
|---|---|---|---|
| SULLENS, TAVIA L | 1 | 49.8% | +46.9% |
| PRICE, CRAIG JAMES | 1 | 69.0% | +22.0% |
| FIORITO, JAMES A | 1 | 71.6% | +28.0% |
| HENDRICKSON, STUART L | 1 | 72.4% | +8.1% |
| KING, BRIAN M | 1 | 70.3% | +23.7% |
| PETTITT, JOHN F | 1 | 25.9% | +21.6% |
| WERTZ, ASHLEE ELIZABETH | 1 | 52.7% | +35.6% |
| SCOTLAND, REBECCA LYNN | 1 | 0.0% | +0.0% |
| MERKLING, MATTHEW J | 1 | 68.2% | +13.2% |
| SPEER, JOSHUA MAXWELL | 1 | 77.8% | -2.5% |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18402058 | SYSTEM AND METHOD FOR COMBINED LIQUEFACTION AND DENSIFICATION OF OXYGEN | PETTITT, JOHN F | 16d overdue |
| 17872477 | METHODS AND EQUIPMENT FOR USING CARBON DIOXIDE IN POULTRY EGG INCUBATION TO IMPROVE CHARACTERISTICS OF POULTRY | SCOTLAND, REBECCA LYNN | 5d |
| 19188240 | METHOD FOR CONTROLLING A RECYCLE GAS STREAM UTILIZING AN EJECTOR FOR THE COOLING OF A UNIT OPERATION | SULLENS, TAVIA L | — |
| 19065156 | VALVE INTEGRATED PRESSURE REGULATOR (VIPR) ASSEMBLY WITH VISUAL ALERT INDICATOR | PRICE, CRAIG JAMES | — |
| 18737251 | CARBON FORMATION DETECTION IN PROCESS EQUIPMENT | FIORITO, JAMES A | — |
| 18659416 | NET-ZERO HYDROGEN PLANTS AND METHODS OF OPERATION | HENDRICKSON, STUART L | — |
| 18610922 | SYSTEM AND METHOD FOR THE PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT | KING, BRIAN M | — |
| 16067276 | SYSTEM FOR COOLING FOOD PRODUCT | AXTELL, ASHLEY | — |
Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 7 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18402058 | SYSTEM AND METHOD FOR COMBINED LIQUEFACTION AND DENSIFICATION OF OXYGEN | PETTITT, JOHN F | 16d overdue |
| 17667861 | ACETYLENE FLUID SUPPLY PACKAGE, SYSTEM COMPRISING THE SAME AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE SAME | MERKLING, MATTHEW J | 15d |
| 19188240 | METHOD FOR CONTROLLING A RECYCLE GAS STREAM UTILIZING AN EJECTOR FOR THE COOLING OF A UNIT OPERATION | SULLENS, TAVIA L | — |
| 19065156 | VALVE INTEGRATED PRESSURE REGULATOR (VIPR) ASSEMBLY WITH VISUAL ALERT INDICATOR | PRICE, CRAIG JAMES | — |
| 18737251 | CARBON FORMATION DETECTION IN PROCESS EQUIPMENT | FIORITO, JAMES A | — |
| 18610922 | SYSTEM AND METHOD FOR THE PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT | KING, BRIAN M | — |
| 18064376 | USING OXYGEN IN NANOBUBBLES TO IMPROVE CHARACTERISTICS OF POULTRY | WERTZ, ASHLEE ELIZABETH | — |
| Art Unit | Apps |
|---|---|
| 3763 | 3 |
| 1736 | 2 |
| 3753 | 1 |
| 1612 | 1 |
| 1615 | 1 |
| 1725 | 1 |
| 1792 | 1 |
| 3761 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19188240 | METHOD FOR CONTROLLING A RECYCLE GAS STREAM UTILIZING AN EJECTOR FOR THE COOLING OF A UNIT OPERATION | SULLENS, TAVIA L | 3763 | §103§112 | Non-Final OA | — | Pending | Apr 24, 2025 |
| 19065156 | VALVE INTEGRATED PRESSURE REGULATOR (VIPR) ASSEMBLY WITH VISUAL ALERT INDICATOR | PRICE, CRAIG JAMES | 3753 | §102§103§112 | Non-Final OA | — | Pending | Feb 27, 2025 |
| 18737251 | CARBON FORMATION DETECTION IN PROCESS EQUIPMENT | FIORITO, JAMES A | — | §103§112 | Non-Final OA | — | Pending | Jun 07, 2024 |
| 18659416 | NET-ZERO HYDROGEN PLANTS AND METHODS OF OPERATION | HENDRICKSON, STUART L | 1736 | §103§112 | Non-Final OA | — | Pending | May 09, 2024 |
| 18610922 | SYSTEM AND METHOD FOR THE PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT | KING, BRIAN M | 3763 | §103§112 | Non-Final OA | — | Pending | Mar 20, 2024 |
| 18402058 | SYSTEM AND METHOD FOR COMBINED LIQUEFACTION AND DENSIFICATION OF OXYGEN | PETTITT, JOHN F | 3763 | §103§112 | Final Rejection | 16d overdue | Pending | Jan 02, 2024 |
| 18064376 | USING OXYGEN IN NANOBUBBLES TO IMPROVE CHARACTERISTICS OF POULTRY | WERTZ, ASHLEE ELIZABETH | 1612 | §103 | Non-Final OA | — | Pending | Dec 12, 2022 |
| 17872477 | METHODS AND EQUIPMENT FOR USING CARBON DIOXIDE IN POULTRY EGG INCUBATION TO IMPROVE CHARACTERISTICS OF POULTRY | SCOTLAND, REBECCA LYNN | 1615 | §103§112Other | Non-Final OA | 5d | Pending | Jul 25, 2022 |
| 17667861 | ACETYLENE FLUID SUPPLY PACKAGE, SYSTEM COMPRISING THE SAME AND METHOD OF FABRICATING SEMICONDUCTOR DEVICE USING THE SAME | MERKLING, MATTHEW J | 1725 | §103 | Final Rejection | 15d | Pending | Feb 09, 2022 |
| 17543918 | METHOD TO CONTROL SYNGAS COMPOSITION BY REACTOR TEMPERATURE | SPEER, JOSHUA MAXWELL | 1736 | §103 | Final Rejection | — | Pending | Dec 07, 2021 |
| 16067276 | SYSTEM FOR COOLING FOOD PRODUCT | AXTELL, ASHLEY | 1792 | §103§112 | Non-Final OA | — | Pending | Jun 29, 2018 |
| 17777420 | MODIFIED CATHODE DEVICE AND HOLDER ASSEMBLY FOR PLASMA ARC SPRAY GUN | TRAN, TIFFANY T | 3761 | §103 | Final Rejection | 13d | Pending | May 17, 2022 |
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Start Free TrialPraxair Technology Inc. has 12 pending office actions as of October 2026, spread across 8 art units and 12 examiners.
Tavia L Sullens has the most, with 1 of Praxair Technology Inc.'s pending office actions.
Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.
