| 6926512 |
Apparatus for extruding foamed polypropylene sheet having improved surface appearance |
James H. Han |
2005-08-09 |
| 6562447 |
Foamed polypropylene sheet having improved appearance and a foamable polypropylene composition therefor |
James H. Han, Phil Jacoby, Mark C. Novak, Constantine Metaxas, Chin Choi-Feng +2 more |
2003-05-13 |
| 6521675 |
Foamed polypropylene sheet having improved appearance and a foamable polypropylene composition therefor |
James H. Han, Phil Jacoby, Mark C. Novak, Constantine Metaxas, Chin Choi-Feng +1 more |
2003-02-18 |
| 6383425 |
Method for extruding foamed polypropylene sheet having improved surface appearance |
James H. Han |
2002-05-07 |
| D413584 |
Scanner |
Chia-Lien Hung, Thomas Young Chang |
1999-09-07 |
| D405069 |
Scanner |
Thomas Young Chang, Tony Chen |
1999-02-02 |
| D405066 |
Scanner |
Tony Chen |
1999-02-02 |
| D394429 |
Paper delivering scanner |
Tony Chen, Thomas Young Chang |
1998-05-19 |
| D388067 |
Video frame grabber |
Tony Chen, Thomas Young Chang |
1997-12-23 |
| 5310584 |
Thermoformable polypropylene-based sheet |
Philip Jacoby, Mark Heiden |
1994-05-10 |