Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5547440 | Lung exerciser | Jane R. Rubens | 1996-08-20 |
| 5439430 | Respiratory exerciser | Jane R. Rubens | 1995-08-08 |
| 4804507 | Process and apparatus for producing gas pressurized foam particles | Stephen P. Chum | 1989-02-14 |
| 4713927 | Process and apparatus for packaging | Willard E. Alexander | 1987-12-22 |
| 4693856 | Method and apparatus for the preparation of foamed thermoplastic articles | Willard E. Alexander, Carl A. Raeck | 1987-09-15 |
| 4626660 | Oven having cavities of varying temperature | — | 1986-12-02 |
| 4604426 | Better foamable styrene and other olefin polymer compositions | — | 1986-08-05 |
| 4532264 | Better foamable styrene and other olefin polymer compositions | — | 1985-07-30 |
| 4485193 | Expandable synthetic resinous thermoplastic particles, method for the preparation thereof and the application therefor | Willard E. Alexander | 1984-11-27 |
| 4448933 | Better foamable styrene and other olefin polymer compositions containing lightly crosslinked hydroxy and isocyanate linkages | — | 1984-05-15 |
| 4360484 | Pressurization and storage of thermoplastic resin foams prior to secondary expansion | — | 1982-11-23 |
| 4186068 | Foamed radiation-crosslinked high density polyethylenes | — | 1980-01-29 |