Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6710094 | Processes for preparing patterns for use in metal castings | — | 2004-03-23 |
| 6502621 | Processes for forming styrene/methyl methacrylate copolymers | Vesselin D. Miladinov | 2003-01-07 |
| 6497269 | Processes for forming styrenic copolymers | Richard A. Schwarz | 2002-12-24 |
| 6360807 | Processes for forming styrenic copolymers | Richard A. Schwarz | 2002-03-26 |
| 6303664 | Treatment for reducing residual carbon in the lost foam process | Kyosti Matti Taristo, Tom Johansson | 2001-10-16 |
| 5240967 | Method for improving the expandability of styrenic polymer particles | Dennis M. Hajnik, William J. Poole | 1993-08-31 |
| 5075346 | Tertiary ethers as blowing agents for foam polymer systems | Joseph A. Verdol | 1991-12-24 |
| 5030663 | Process for the preparation of fire-retardant expandable thermoplastic beads | Dennis M. Hajnik | 1991-07-09 |
| 4994499 | Method of adding flame retardant to vinyl aromatic polymers made in a one-step process | Dennis M. Hajnik | 1991-02-19 |
| 4980382 | Process for the preparation of expandable vinyl aromatic polymer particles containing hexabromocyclododecane | Dennis M. Hajnik | 1990-12-25 |
| 4785022 | Use of rubbery copolymers to decrease coffee leakage in foam cups | Dennis M. Hajnik | 1988-11-15 |
| 4761432 | Coating of flame retardants onto a seed bead | Dennis M. Hajnik | 1988-08-02 |
| 4720429 | Foam cups with enhanced coffee retention | — | 1988-01-19 |
| 4703065 | Foam cups with enhanced coffee retention | — | 1987-10-27 |