Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9833818 | Working surface cleaning system and method | Alan E. Humphrey, James H. Duvall | 2017-12-05 |
| 9595456 | Wafer manufacturing cleaning apparatus, process and method of use | Alan E. Humphrey, James H. Duvall | 2017-03-14 |