Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472081 | Semi-transparent high barrier film | Mingliang Lawrence Tsai | 2002-10-29 |
| 6329048 | Multi-layer barrier film | Michael T. Heffelfinger, Mark Lockhart, Robert G. Peet, Eileen A. Stetter | 2001-12-11 |
| 5491023 | Film composition | Mingliang Lawrence Tsai | 1996-02-13 |
| 5346763 | Multilayer film structure | M. Lawrence Tsai | 1994-09-13 |
| 5110671 | One side heat sealable polypropylene film | Jay K. Keung | 1992-05-05 |
| 4764425 | Oriented, heat sealable multi-layered film | Jay K. Keung, David A. Liestman, Michael Nahmias | 1988-08-16 |
| 4590125 | Heat-sealable multi-layer film structures and methods of forming the same | Jay K. Keung | 1986-05-20 |