Art Unit 1793
Group 1790Food, Analytical Chemistry, Sterilization, Biochemistry, and Electrochemistry
- Active examiners
- 77
- Average office actions per grant
- 2.18
Grant ratio
- Art Unit 1793
- 47.1%
- Group 1790
- 50.8%
Active examiners
| Lien T. Tran | 23.9% | 3.47 | October 2026 |
|---|---|---|---|
| Subbalakshmi Prakash | 39.5% | 3.27 | October 2026 |
| Jeffrey Mornhinweg | 31.2% | 3.26 | October 2026 |
| Felicia C Turner | 23.5% | 3.95 | October 2026 |
| Brent T O'Hern | 68.2% | 1.84 | October 2026 |
| Tynesha Mcclain-Coleman | 11.8% | 3.86 | October 2026 |
| Bhaskar Mukhopadhyay | 22.8% | 3.72 | October 2026 |
| Changqing Li | 27.1% | 3.08 | October 2026 |
| Wayne Langel | 63.0% | 1.89 | October 2026 |
| C. Melissa Koslow | 74.7% | 1.70 | September 2026 |
| Kevin P. Kerns | 71.1% | 1.89 | October 2026 |
| Anthony J. Green | 76.7% | 1.43 | October 2026 |
| Hong Thi Yoo | 25.9% | 2.80 | October 2026 |
| Primary Examiner Cam N. Nguyen | 73.3% | 1.56 | October 2026 |
| Tima M. Mcguthry-Banks | 76.5% | 1.69 | October 2026 |
| Patricia L. Hailey | 78.8% | 1.40 | October 2026 |
| Noah S. Wiese | 71.8% | 1.46 | October 2026 |
| Jie Yang | 43.4% | 2.86 | October 2026 |
| Pegah Parvini | 50.7% | 2.20 | October 2026 |
| Jessee Roe | 52.7% | 2.04 | October 2026 |
| Elizabeth A. Bolden | 78.7% | 1.59 | October 2026 |
| Daniel C. Mccracken | 47.9% | 1.89 | October 2026 |
| Kiley Stoner | 76.0% | 1.53 | October 2026 |
| Shuangyi Abu Ali | 31.7% | 3.19 | October 2026 |
| Michele Jacobson | 10.2% | 2.82 | October 2026 |
| Carrie Glimm | 9.6% | 2.73 | October 2026 |
| James Mcdonough | 52.2% | 1.96 | October 2026 |
| Stuart Hendrickson | 52.3% | 2.13 | October 2026 |
| Devang R Patel | 32.7% | 2.38 | October 2026 |
| Michael Aboagye | 66.7% | 1.87 | October 2026 |
| Anthony J. Zimmer | 47.0% | 1.88 | October 2026 |
| Lois Zheng | 37.0% | 2.28 | October 2026 |
| Amanda S Hawkins | 0.0% | N/A | October 2026 |
| Richard M. Rump | 58.6% | 2.07 | October 2026 |
| Christopher Kessler | 34.7% | 2.33 | October 2026 |
| Erin B Saad | 50.0% | 2.01 | October 2026 |
| James A Fiorito | 56.7% | 1.97 | October 2026 |
| Paul Wartalowicz | 50.5% | 2.09 | October 2026 |
| Daniel Berns | 74.5% | 1.81 | October 2026 |
| James Shellhammer | 0.0% | N/A | October 2026 |
| Megha Mehta | 40.5% | 3.68 | October 2026 |
| Carlos Gamino | 30.0% | 2.18 | October 2026 |
| Guinever S. Gregorio | 41.8% | 2.13 | October 2026 |
| Sheng Han Davis | 47.4% | 2.36 | October 2026 |
| Janelle Morillo | 52.6% | 2.86 | October 2026 |
| Matthew E. Hoban | 28.9% | 2.25 | October 2026 |
| Nicholas P D'Aniello | 40.8% | 2.62 | October 2026 |
| Vanessa T. Luk | 28.9% | 2.72 | October 2026 |
| Jennifer A Smith | 47.8% | 2.50 | October 2026 |
| Kevin E. Yoon | 58.0% | 1.79 | October 2026 |
| Lark Julia Moreno | 0.0% | N/A | October 2026 |
| James Corno | 32.8% | 2.17 | October 2026 |
| Sarah A. Slifka | 54.8% | 1.76 | October 2026 |
| Stefanie Cohen | 59.7% | 2.05 | October 2026 |
| Brian Walck | 35.1% | 2.27 | October 2026 |
| Jun Li | 42.1% | 2.54 | October 2026 |
| Michael Forrest | 33.9% | 2.16 | October 2026 |
| Smita Patel | 72.5% | 2.06 | October 2026 |
| Syed Taha Iqbal | 67.4% | 1.79 | October 2026 |
| Yoshitoshi Takeuchi | 41.3% | 2.32 | October 2026 |
| Aileen B. Felton | 27.9% | 2.23 | October 2026 |
| Emily M. Le | 9.3% | 1.83 | October 2026 |
| Jennifer C Mcneil | 11.9% | 1.58 | October 2026 |
| Jacky Yuen | 17.1% | 2.59 | October 2026 |
| Colin W. Slifka | 28.2% | 2.12 | October 2026 |
| Carlos Barcena | 42.9% | 1.87 | October 2026 |
| Steven Ha | 38.7% | 1.85 | October 2026 |
| Eli Mekhlin | 59.3% | 2.18 | October 2026 |
| John A Hevey | 36.0% | 2.56 | October 2026 |
| Heng M Chan | 31.8% | 2.16 | October 2026 |
| Bradie S. Crandall | 0.0% | N/A | August 2026 |
| Joseph Cullen Merchlinsky | 0.0% | N/A | October 2026 |
| Xiaobei Wang | 100.0% | 2.65 | October 2026 |
| Stephanie Gerla | 0.0% | 2.00 | October 2026 |
| Liliana Cerullo | 0.0% | 1.00 | October 2026 |
| James Corno | 0.0% | 2.48 | September 2026 |
| Thinh Gia Hoang | 0.0% | N/A | October 2026 |
Examiner distribution
- Median grant ratio
- 41.9%
- Middle 50% of grant ratios
- 29.2%–58.4%
- Median office actions / grant
- 2.16
- Middle 50% of office actions / grant
- 1.87–2.57
Active examiners with at least 20 applications.
Other associated examiners
Examiners without recent activity.
| Leslie Wong | 52.7% | 3.38 | September 2023 Appears inactive |
|---|---|---|---|
| Patricia Ann George | 23.8% | 2.90 | November 2025 Appears inactive |
| Helen F. Heggestad | 62.9% | 2.06 | April 2023 Appears inactive |
| Walter Moore | 19.0% | 3.36 | March 2023 Appears inactive |
| Timothy Vanoy | 88.8% | 1.18 | December 2023 Appears inactive |
| Deborah Yee | 62.4% | 1.94 | March 2019 Appears inactive |
| Scott Kastler | 68.3% | 1.75 | December 2023 Appears inactive |
| Karl Group | 70.7% | 1.73 | November 2023 Appears inactive |
| George Wyszomierski | 79.1% | 1.76 | October 2025 Appears inactive |
| Elizabeth Wood | 69.8% | 1.92 | April 2024 Appears inactive |
| Steven Bos | 72.4% | 1.64 | August 2023 Appears inactive |
| Helene Klemanski | 88.8% | 1.28 | February 2021 Appears inactive |
| Amber M Cox | 14.4% | 3.54 | July 2020 Appears inactive |
| Paul Marcantoni | 74.1% | 1.62 | January 2018 Appears inactive |
| Kuang Y. Lin | 58.8% | 1.61 | September 2012 Appears inactive |
| Kallambella Vijayakumar | 60.1% | 1.85 | November 2014 Appears inactive |
| John P. Sheehan | 71.1% | 1.62 | August 2012 Appears inactive |
| Mark L. Shevin | 55.6% | 2.10 | October 2011 Appears inactive |
| Weiping Zhu | 45.1% | 2.80 | April 2023 Appears inactive |
| S. Ip | 30.7% | 2.44 | July 2016 Appears inactive |
| Edward M Johnson | 75.0% | 1.35 | February 2025 Appears inactive |
| Brittany M. Martinez | 51.9% | 2.02 | October 2012 Appears inactive |
| Veronica F. Faison | 74.0% | 1.83 | January 2020 Appears inactive |
| David M. Brunsman | 72.5% | 1.50 | September 2021 Appears inactive |
| Ngoclan T. Mai | 75.0% | 1.55 | May 2018 Appears inactive |
| Melissa Stalder | 54.5% | 2.08 | March 2025 Appears inactive |
| Caitlin Kiechle | 38.3% | 2.79 | April 2017 Appears inactive |
| Michelle Hou | 79.3% | 1.91 | May 2010 Appears inactive |
| Kevin M. Johnson | 48.3% | 2.41 | December 2011 Appears inactive |
| Ngoc-Yen Nguyen | 24.1% | 2.64 | January 2023 Appears inactive |
| Yun Qian | 42.7% | 2.70 | July 2026 Potentially inactive |
| Diana J. Liao | 58.3% | 1.66 | February 2013 Appears inactive |
| Alexander Polyansky | 40.0% | 2.43 | October 2017 Appears inactive |
| Saeeda Latham | 14.5% | 3.15 | April 2016 Appears inactive |
| Joseph V. Micali | 32.8% | 2.09 | May 2010 Appears inactive |
| Serena L. Hanor | 80.6% | 1.14 | March 2009 Appears inactive |
| Jared Wood | 68.3% | 2.26 | May 2014 Appears inactive |
| Colette Nguyen | 26.8% | 2.52 | April 2020 Appears inactive |
| Rebecca Lee | 34.0% | 3.28 | August 2017 Appears inactive |
| Kenneth Vaden | 69.0% | 1.94 | April 2017 Appears inactive |
| Gautam Prakash | 50.0% | 2.33 | July 2025 Appears inactive |
| Pritesh Darji | 30.0% | 2.93 | January 2015 Appears inactive |
| Bijay Saha | 25.6% | 3.17 | February 2015 Appears inactive |
| Humera N. Sheikh | 0.0% | 2.31 | March 2026 Appears inactive |
| Marla D Swain | 0.0% | N/A | July 2026 Potentially inactive |
| Joseph V. Micali | 0.0% | 3.00 | August 2011 Appears inactive |
| Christine Chen | 50.0% | 1.00 | February 2008 Appears inactive |
| Ahmed Abdel Rahman | 100.0% | 1.00 | December 2008 Appears inactive |
| Kallambella Vijayakumar | 100.0% | 2.67 | September 2020 Appears inactive |
Based on available public USPTO records; may be incomplete.