Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11639429 | Pre-dried polystyrene/alumina compound for foam extrusion | Fengkui Li, Jayna Brown, Kenneth P. Blackmon, David Knoeppel, John Gaustad +2 more | 2023-05-02 |
| 11193012 | Clarifier blends for optimum performance | Margarito Lopez, Michael McLeod, Douglas Burmaster, John Ashbaugh | 2021-12-07 |
| 10745537 | Polymer foams | Leonardo Cortes, Fengkui Li, Kenneth P. Blackmon, Marc Mayhall, Leland Daniels +1 more | 2020-08-18 |
| 10414086 | Polyethylene for superior sheet extrusion thermoforming performance | Michael McLeod, Mahesh Patkar, Russell McDonald | 2019-09-17 |
| 9650313 | Depolymerization of plastic materials | James R. Butler, James Assef, John Ashbaugh, Jason Clark, Michel Duc +1 more | 2017-05-16 |
| 9505906 | Polymer foams | John Ashbaugh, Fengkui Li, Douglas Burmaster, Jeffrey E. Nairn, Marc Mayhall +1 more | 2016-11-29 |
| 9212278 | Method for making a high impact polystyrene with high gloss and high impact strength | David Knoeppel, Likuo Sun | 2015-12-15 |
| 8969638 | Depolymerizatin of plastic materials | James R. Butler, James Assef, John Ashbaugh, Jason Clark, Michel Duc +1 more | 2015-03-03 |
| 8691914 | High impact polystyrene with high gloss and high impact strength | David Knoeppel, Likuo Sun | 2014-04-08 |
| 8444615 | One-piece suction canister liner | John Gaustad, Steve Harden, Leland Daniels | 2013-05-21 |