Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| RE40729 | Liquid pavement marking compositions | Mark D. Purgett, David C. May, Mark D. Zender, Tom R. Borden | 2009-06-09 | |
| RE40088 | Liquid pavement marking compositions | Mark D. Purgett, David C. May, Mark D. Zender, Tom R. Borden | 2008-02-19 | |
| 6790880 | Liquid pavement marking compositions | Mark D. Purgett, David C. May, Mark D. Zender, Thomas R. Borden | 2004-09-14 | $16,418,000 |
| 6451874 | Liquid pavement marking compositions | Mark D. Purgett, David C. May, Mark D. Zender, Thomas R. Borden | 2002-09-17 | $22,279,000 |
| 6166106 | Liquid pavement marking compositions | Mark D. Purgett, David C. May, Mark D. Zender, Thomas R. Borden | 2000-12-26 | $48,740,000 |
| 5391015 | Pavement markers with silicone adhesive | James M. Kaczmarczik, James E. Lasch, Gregory F. Jacobs, David C. May | 1995-02-21 | $10,561,000 |
| 5310278 | Pavement markers with silicone adhesive | James M. Kaczmarczik, James E. Lasch, Gregory F. Jacobs, David C. May | 1994-05-10 | $6,826,000 |