Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7197897 | Chemical strengthening process for disks used in disk drive data storage devices | Nathan Ellis Jacobson, Rick Allan Sprague | 2007-04-03 |
| 6911261 | pH adjustment of a melt for use in microetching glass substrates | John William Marier, Douglas Howard Piltingsrud, Rick Allan Sprague | 2005-06-28 |
| 6638623 | pH adjustment of a strengthening melt for use in strengthening glass substrates | John William Marier, Rick Allan Sprague | 2003-10-28 |