Technology areas: Chemistry & Materials • Medical Devices & Mechanical Engineering
13 pending office actions • 5 art units • 10 examiners • 0 of 13 (0%) have an AI response strategy ready • 23 patents granted in the last 365 days
Columbia Insurance Company has 13 pending office actions in Chemistry & Materials. The files involve 10 examiners across 5 art units, creating moderate examiner spread within a limited technical structure.
DURHAM, NATHAN E is the busiest examiner, with 2 pending matters. Counsel can monitor that repeated assignment while using art-unit grouping to coordinate responses across the remaining chemistry matters.
Based on the USPTO statutory response window for each pending office action. 3 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. 3 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 | 3 (23%) |
| Double-patenting only | 1 (8%) |
| Double-patenting + other | 2 (15%) |
| Multi-statute (no §101) | 7 (54%) |
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 |
|---|---|---|---|
| DURHAM, NATHAN E | 2 | 65.9% | +17.3% |
| MCKINNON, LASHAWNDA T | 2 | 54.0% | +30.2% |
| CAI, WENWEN | 2 | 59.9% | +19.4% |
| IMANI, ELIZABETH MARY COLE | 1 | 33.5% | +24.9% |
| PRANGE, SHARON M | 1 | 54.2% | +46.8% |
| PIERCE, JEREMY R | 1 | 56.8% | +42.8% |
| LYNCH, MEGAN E | 1 | 38.1% | +39.7% |
| PATEL, TAJASH D | 1 | 80.8% | +7.3% |
| MAESTRI, PATRICK J | 1 | 73.3% | +15.0% |
| CLEVELAND, TIMOTHY C | 1 | 59.7% | +18.5% |
Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18800226 | Methods And Devices For Transporting Yarn | PATEL, TAJASH D | — |
Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 7 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18892851 | VAMP CONSTRUCTION AND METHOD OF CONSTRUCTING THE SAME | LYNCH, MEGAN E | 36d overdue |
| 19210270 | Interchangeable Foreparts for Shoes | PRANGE, SHARON M | 26d overdue |
| 18780957 | HIDDEN EDGE FOR FLOORING FINISHING | MAESTRI, PATRICK J | 28d |
| 19339830 | PATTERNED TUFTED ARTICLES, SURFACE COVERINGS COMPRISING SAME, AND SYSTEMS AND METHODS OF MAKING AND USING SAME | DURHAM, NATHAN E | — |
| 18985611 | CARPETS HAVING AN IMPROVED DELAMINATION STRENGTH AND FLUID BARRIER PROPERTIES AND METHODS OF MAKING SAME | MCKINNON, LASHAWNDA T | — |
| 18812214 | Patterned Tufted Articles, Surface Coverings Comprising Same, And Systems And Methods Of Making And Using Same | DURHAM, NATHAN E | — |
| 18546840 | PASTEURIZATION OF ARCHITECTURAL COMPOSITIONS WITH ELEVATED HEAT AND METHODS THEREFOR | CLEVELAND, TIMOTHY C | — |
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 8 ordered by deadline are shown.
| App # | Title | Examiner | Due in |
|---|---|---|---|
| 18892851 | VAMP CONSTRUCTION AND METHOD OF CONSTRUCTING THE SAME | LYNCH, MEGAN E | 36d overdue |
| 19210270 | Interchangeable Foreparts for Shoes | PRANGE, SHARON M | 26d overdue |
| 18780957 | HIDDEN EDGE FOR FLOORING FINISHING | MAESTRI, PATRICK J | 28d |
| 19548530 | SHOCK PAD FOR SYNTHETIC TURF AND METHODS OF MAKING SAME | IMANI, ELIZABETH MARY COLE | — |
| 19339830 | PATTERNED TUFTED ARTICLES, SURFACE COVERINGS COMPRISING SAME, AND SYSTEMS AND METHODS OF MAKING AND USING SAME | DURHAM, NATHAN E | — |
| 19026905 | Novel Artificial Turf and Methods of Making Same | PIERCE, JEREMY R | — |
| 18985611 | CARPETS HAVING AN IMPROVED DELAMINATION STRENGTH AND FLUID BARRIER PROPERTIES AND METHODS OF MAKING SAME | MCKINNON, LASHAWNDA T | — |
| 18828637 | Artificial Turf And Associated Devices And Methods For Making Same | MCKINNON, LASHAWNDA T | — |
| Art Unit | Apps |
|---|---|
| 3732 | 5 |
| 1789 | 4 |
| 1763 | 2 |
| 3635 | 1 |
| 1774 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19548530 | SHOCK PAD FOR SYNTHETIC TURF AND METHODS OF MAKING SAME | IMANI, ELIZABETH MARY COLE | 1789 | §103 | Final Rejection | — | Pending | Feb 24, 2026 |
| 19339830 | PATTERNED TUFTED ARTICLES, SURFACE COVERINGS COMPRISING SAME, AND SYSTEMS AND METHODS OF MAKING AND USING SAME | DURHAM, NATHAN E | 3732 | §102§103§112 | Final Rejection | — | Pending | Sep 25, 2025 |
| 19210270 | Interchangeable Foreparts for Shoes | PRANGE, SHARON M | 3732 | §102§103 | Final Rejection | 26d overdue | Pending | May 16, 2025 |
| 19026905 | Novel Artificial Turf and Methods of Making Same | PIERCE, JEREMY R | 1789 | §103 | Non-Final OA | — | Pending | Jan 17, 2025 |
| 18985611 | CARPETS HAVING AN IMPROVED DELAMINATION STRENGTH AND FLUID BARRIER PROPERTIES AND METHODS OF MAKING SAME | MCKINNON, LASHAWNDA T | 1789 | §103§112Other | Non-Final OA | — | Pending | Dec 18, 2024 |
| 18892851 | VAMP CONSTRUCTION AND METHOD OF CONSTRUCTING THE SAME | LYNCH, MEGAN E | 3732 | §102§103 | Non-Final OA | 36d overdue | Pending | Sep 23, 2024 |
| 18828637 | Artificial Turf And Associated Devices And Methods For Making Same | MCKINNON, LASHAWNDA T | 1789 | DP | Non-Final OA | — | Pending | Sep 09, 2024 |
| 18812214 | Patterned Tufted Articles, Surface Coverings Comprising Same, And Systems And Methods Of Making And Using Same | DURHAM, NATHAN E | 3732 | §102§103 | Non-Final OA | — | Pending | Aug 22, 2024 |
| 18800226 | Methods And Devices For Transporting Yarn | PATEL, TAJASH D | 3732 | §103 | Non-Final OA | — | Pending | Aug 12, 2024 |
| 18780957 | HIDDEN EDGE FOR FLOORING FINISHING | MAESTRI, PATRICK J | 3635 | §102§103 | Non-Final OA | 28d | Pending | Jul 23, 2024 |
| 18689601 | STAIN BLOCKING ARCHITECTURAL COMPOSITIONS WITH CATIONIC RESIN AND NONIONIC RESIN BLENDS | CAI, WENWEN | 1763 | §103DP | Non-Final OA | — | Pending | Mar 06, 2024 |
| 18689659 | NONIONIC RESINS AND THEIR USES IN STAIN BLOCKING ARCHITECTURAL COMPOSITIONS | CAI, WENWEN | 1763 | §103DP | Non-Final OA | — | Pending | Mar 06, 2024 |
| 18546840 | PASTEURIZATION OF ARCHITECTURAL COMPOSITIONS WITH ELEVATED HEAT AND METHODS THEREFOR | CLEVELAND, TIMOTHY C | 1774 | §103§112 | Final Rejection | — | Pending | Aug 17, 2023 |
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Start Free TrialColumbia Insurance Company has 13 pending office actions as of October 2026, spread across 5 art units and 10 examiners.
Nathan E Durham has the most, with 2 of Columbia Insurance Company's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
