Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5536044 | Hot melt adhesive bound book | Robert A. Luhman, Gary K. Kuhn, Kenneth J. Perrington, Karl M. Kropp | 1996-07-16 |
| 5346350 | Hot melt adhesive applicator | Robert A. Luhman, Gary K. Kuhn, Kenneth J. Perrington, Karl M. Kropp | 1994-09-13 |
| 5316424 | Hot melt adhesive binding method | Robert A. Luhman, Gary K. Kuhn, Kenneth J. Perrington, Karl M. Kropp | 1994-05-31 |
| 5312501 | Automated liner removing transfer tape applicator method | Robert A. Luhman | 1994-05-17 |
| 5152654 | Hot melt adhesive applicator | Robert A. Luhman, Gary K. Kuhn, Kenneth J. Perrington, Karl M. Kropp | 1992-10-06 |
| 4980011 | Automated liner removing transfer tape applicator | Robert A. Luhman | 1990-12-25 |