Art Unit 1657
Group 1650Enzymology, Microbiology, and Fermentation
- Active examiners
- 21
- Average office actions per grant
- 2.06
Grant ratio
- Art Unit 1657
- 53.5%
- Group 1650
- 53.6%
Active examiners
| Satyendra K. Singh | 53.6% | 2.06 | October 2026 |
|---|---|---|---|
| Robert J Yamasaki | 59.0% | 2.37 | October 2026 |
| Charles Z Constantine | 53.2% | 2.07 | October 2026 |
| Blaine Lankford | 63.7% | 2.26 | October 2026 |
| Thane Underdahl | 48.9% | 1.82 | October 2026 |
| Laura J Schuberg | 22.5% | 3.75 | October 2026 |
| Kara D Johnson | 66.4% | 2.41 | October 2026 |
| Teresa E Knight | 53.9% | 2.45 | October 2026 |
| Aaron J. Kosar | 65.4% | 1.94 | October 2026 |
| Candice Lee Swift | 31.2% | 2.33 | October 2026 |
| Trevor L Kane | 38.3% | 2.04 | October 2026 |
| Vera Afremova | 43.7% | 2.38 | October 2026 |
| Mary A Crum | 14.9% | 2.83 | October 2026 |
| Kimberly C Breen | 10.6% | 2.80 | October 2026 |
| Alexander M Duryee | 16.8% | 2.35 | October 2026 |
| Deepa Mishra | 15.3% | 2.62 | October 2026 |
| Paul C Martin | 55.1% | 2.79 | October 2026 |
| Rachel Emily Martin | 23.5% | 2.00 | October 2026 |
| Jessica Edwards | 12.5% | 1.62 | October 2026 |
| Tiffany Maureen Gough | 28.2% | 2.59 | October 2026 |
| Liliana Cerullo | 0.0% | 1.00 | October 2026 |
Examiner distribution
- Median grant ratio
- 41.0%
- Middle 50% of grant ratios
- 21.1%–54.2%
- Median office actions / grant
- 2.36
- Middle 50% of office actions / grant
- 2.06–2.60
Active examiners with at least 20 applications.
Other associated examiners
Examiners without recent activity.
| Ralph Gitomer | 72.4% | 1.59 | January 2023 Appears inactive |
|---|---|---|---|
| Lisa J. Hobbs | 59.1% | 2.49 | January 2020 Appears inactive |
| Rosanne Kosson | 81.3% | 1.62 | October 2025 Appears inactive |
| David M. Naff | 55.8% | 1.96 | May 2014 Appears inactive |
| Kailash C. Srivastava | 64.9% | 1.82 | October 2018 Appears inactive |
| Herbert J. Lilling | 78.4% | 1.36 | August 2012 Appears inactive |
| Sandra Saucier | 60.1% | 1.69 | September 2014 Appears inactive |
| Heidi Reese | 79.9% | 1.59 | March 2022 Appears inactive |
| Anjali Ajit Hirani | 52.2% | 2.67 | March 2025 Appears inactive |
| Srikanth Patury | 52.8% | 2.75 | July 2022 Appears inactive |
| Stephen A Perkins | 37.6% | 3.66 | April 2020 Appears inactive |
| Bin Shen | 58.7% | 1.86 | August 2023 Appears inactive |
| Christopher Keller | 19.5% | 3.56 | May 2016 Appears inactive |
| John Paul Selwanes | 31.0% | 2.22 | June 2026 Potentially inactive |
| Louise Humphreyhumphrey | 44.4% | 2.02 | October 2025 Appears inactive |
| Sharon M Papciak | 0.0% | 2.59 | June 2026 Potentially inactive |
| Herbert J. Lilling | 21.1% | 1.50 | September 2014 Appears inactive |
| Amanda P. Wood | 60.0% | 1.00 | October 2008 Appears inactive |
| Neil Mittal | 33.3% | 1.00 | June 2022 Appears inactive |
| Chunyuan Luo | 100.0% | 1.40 | January 2013 Appears inactive |
| Larry Moore | 100.0% | 1.17 | July 2013 Appears inactive |
| Matthew Smardz | 25.0% | 1.00 | April 2020 Appears inactive |
| Melenie Mccormick | 0.0% | 2.08 | September 2025 Appears inactive |
| Wyatt A Henke | 0.0% | N/A | April 2024 Appears inactive |
| Shaun T Ranade | 100.0% | 1.00 | November 2019 Appears inactive |
Based on available public USPTO records; may be incomplete.