Art Unit 1772
Group 1770Chemical Apparatus, Separation, and Purification
- Active examiners
- 34
- Average office actions per grant
- 1.83
Grant ratio
- Art Unit 1772
- 65.6%
- Group 1770
- 63.1%
Active examiners
| Sharon Pregler | 71.1% | 1.62 | October 2026 |
|---|---|---|---|
| Jonathan Miller | 71.6% | 1.39 | October 2026 |
| Brian Mccaig | 76.3% | 1.47 | October 2026 |
| Renee Robinson | 67.3% | 1.98 | October 2026 |
| Youngsul Jeong | 64.0% | 2.31 | October 2026 |
| Jonathan "Luke" Pilcher | 55.4% | 2.07 | October 2026 |
| Ali Z Fadhel | 68.0% | 1.67 | October 2026 |
| Gabriel Gitman | 65.5% | 1.55 | October 2026 |
| Tam M. Nguyen | 76.5% | 1.83 | October 2026 |
| Alyssa L Cepluch | 52.5% | 2.65 | October 2026 |
| Jason Y Chong | 63.8% | 1.69 | October 2026 |
| Dennis M. White | 39.3% | 2.16 | October 2026 |
| Paul Hyun | 64.9% | 2.35 | October 2026 |
| Robert Clemente | 83.0% | 1.47 | October 2026 |
| Robert Eom | 39.2% | 2.88 | October 2026 |
| Dung H Bui | 85.8% | 1.62 | October 2026 |
| Sam P. Siefke | 64.3% | 2.35 | October 2026 |
| Lore Jarrett | 69.2% | 2.32 | October 2026 |
| Brian J. Sines | 73.0% | 1.51 | October 2026 |
| Jennifer Wecker | 59.3% | 1.81 | October 2026 |
| In Suk Bullock | 2.4% | 1.54 | October 2026 |
| Anthony Shumate | 75.9% | 1.76 | September 2026 |
| Joseph W. Drodge | 61.8% | 1.66 | October 2026 |
| John Kim | 0.0% | 1.78 | October 2026 |
| Wilson Mendoza | 0.0% | N/A | October 2026 |
| Ryan B Huang | 0.0% | 2.78 | October 2026 |
| Adam Adrien Germain | 0.0% | 1.00 | October 2026 |
| Benjamin Kurtz | 56.7% | 2.42 | October 2026 |
| Madeline Gonzalez | 31.3% | 2.13 | October 2026 |
| Bachar El Haj Hassan | 0.0% | N/A | October 2026 |
| Sandra M Arias | 0.0% | N/A | August 2026 |
| Nathan N Hoang | 0.0% | N/A | October 2026 |
| Jelitza M Perez | 25.0% | 1.59 | October 2026 |
| Liliana Cerullo | 0.0% | 1.00 | October 2026 |
Examiner distribution
- Median grant ratio
- 64.1%
- Middle 50% of grant ratios
- 49.2%–71.3%
- Median office actions / grant
- 1.78
- Middle 50% of office actions / grant
- 1.58–2.32
Active examiners with at least 20 applications.
Other associated examiners
Examiners without recent activity.
| Thuan D. Dang | 78.7% | 1.52 | December 2025 Appears inactive |
|---|---|---|---|
| Philip Louie | 63.0% | 2.11 | December 2023 Appears inactive |
| Derek Mueller | 78.2% | 1.67 | June 2021 Appears inactive |
| Aaron Pierpont | 59.2% | 2.35 | April 2019 Appears inactive |
| Bradley Etherton | 76.1% | 2.40 | April 2014 Appears inactive |
| Jason M. Greene | 76.9% | 1.45 | February 2025 Appears inactive |
| Karla Hawkins | 74.5% | 1.74 | January 2018 Appears inactive |
| Timothy G. Kingan | 59.8% | 1.87 | September 2015 Appears inactive |
| Bryan Kilpatrick | 56.3% | 3.15 | November 2024 Appears inactive |
| Mr. Terry K Cecil | 35.5% | 1.77 | June 2026 Potentially inactive |
| Candace R. Chouinard | 46.7% | 2.21 | March 2014 Appears inactive |
| Jessica Whitman | 25.0% | 1.00 | September 2025 Appears inactive |
| Briana Obenhuber | 14.3% | 1.61 | May 2018 Appears inactive |
| Elizabeth Cardin | 44.4% | 1.00 | February 2015 Appears inactive |
| Fidan Bersin | 16.7% | 1.00 | August 2025 Appears inactive |
Based on available public USPTO records; may be incomplete.