Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8309464 | Methods for etching the edge of a silicon wafer | Henry F. Erk, Peter Albrecht, Eugene R. Hollander, Thomas E. Doane, Roland R. Vandamme +1 more | 2012-11-13 |
| 8192822 | Edge etched silicon wafers | Henry F. Erk, Peter Albrecht, Eugene R. Hollander, Thomas E. Doane, Roland R. Vandamme +1 more | 2012-06-05 |
| 7323421 | Silicon wafer etching process and composition | Mark Stinson, Henry F. Erk, Guoqiang Zhang, Mick Bjelopavlic, Alexis Grabbe +3 more | 2008-01-29 |
| 5837662 | Post-lapping cleaning process for silicon wafers | Jing Chai, Henry F. Erk, Thomas E. Doane | 1998-11-17 |