Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11806795 | Security articles comprising groups of microstructures made by end milling | Christopher Grinde | 2023-11-07 |
| 11253933 | Non-orthogonal cube corner elements and arrays thereof made by end milling | Christopher Grinde, Todd A. Ballen, Kenneth L. Smith | 2022-02-22 |
| 10502875 | Microtiled prismatic cube corner articles | Kenneth L. Smith, Todd A. Ballen | 2019-12-10 |
| 9703023 | Microtiled prismatic cube corner articles | Kenneth L. Smith, Todd A. Ballen | 2017-07-11 |
| 7510462 | Multi-diamond cutting tool assembly for creating microreplication tools | William J. Bryan, Jeffrey E. Clements, Greg E. Schrank, Jennifer L. Trice, Timothy L. Hoopman +1 more | 2009-03-31 |
| 7401396 | Methods of making microstructured lamina and apparatus | Lars A. Smeenk, Conrad V. Anderson, Kenneth L. Smith | 2008-07-22 |
| 7174619 | Methods of making microstructured lamina and apparatus | Lars A. Smeenk, Conrad V. Anderson, Kenneth L. Smith | 2007-02-13 |
| 7140812 | Diamond tool with a multi-tipped diamond | William J. Bryan, Jeffrey E. Clements | 2006-11-28 |
| 6935756 | Retroreflective articles having moire-like pattern | Kenneth L. Smith, David W. Meitz, Madeleine B. Fleming, John C. Nelson | 2005-08-30 |
| 6843571 | Methods of making a master and replicas thereof | Kenneth L. Smith, David W. Meitz, Madeleine B. Fleming, John C. Nelson | 2005-01-18 |
| 6129540 | Production tool for an abrasive article and a method of making same | Timothy L. Hoopman | 2000-10-10 |
| 6076248 | Method of making a master tool | Timothy L. Hoopman | 2000-06-20 |