Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11001982 | Manhole cover assembly | — | 2021-05-11 |
| 9909275 | Manhole cover assembly | — | 2018-03-06 |
| 6766843 | Apparatus for transferring a discrete portion of first web onto a second web | Ronald A. Hilt | 2004-07-27 |
| 6550517 | Apparatus for transferring a discrete portion of a first web onto a second web | Ronald A. Hilt | 2003-04-22 |
| 6524423 | Method of transferring a discrete portion of a first web onto a second web | Ronald A. Hilt | 2003-02-25 |
| 6416697 | Method for obtaining a dual strata distribution of superabsorbent in a fibrous matrix | Michael Venturino, John Wallace de Vos, Leon Robert Flesburg, David W. Heyn, Richard Francis Keller +2 more | 2002-07-09 |
| 6202259 | Method and apparatus for depositing particulate material in a fibrous web | John Wallace de Vos, David W. Heyn, Richard Francis Keller, Thomas George Olsen | 2001-03-20 |