Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6852071 | Systems and methods for making paperboard containers | David W. Norwood, Semyon Bekker, Alvin Chester Hartman, Gregory Neal | 2005-02-08 |
| 6745103 | Machine and system for packaging food products | Brian Eugene McKillop, William J. Searle | 2004-06-01 |
| 6139481 | Gas fired burner for sealing single and double sided polycoated paper cups | David W. Norwood | 2000-10-31 |
| 5614661 | Apparatus and method for testing containers | — | 1997-03-25 |
| 5456754 | Apparatus for coating paperboard containers | Derek S. Matheson, Wesley R. Bush, Carlton L. Kemmet, Donald C. Lundgren, David W. Norwood +2 more | 1995-10-10 |
| 5281446 | Methods for coating paper board containers | Derek S. Matheson, Wesley R. Bush, Carlton L. Kemmet, Donald C. Lundgren, David W. Norwood +2 more | 1994-01-25 |
| 5078313 | Wax-coated paperboard containers | Derek S. Matheson, Wesley R. Bush, Carton L. Kemmet, Donald C. Lundgren, David W. Norwood +3 more | 1992-01-07 |
| 4478121 | Digital feed system | Frank Ritter | 1984-10-23 |
| 4443679 | Induction furnace for heat shrinking thermoplastic sheet onto mandrels in a forming process | — | 1984-04-17 |
| 4331854 | Low frequency induction heater | — | 1982-05-25 |