Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9314999 | Biaxially oriented polylactic acid film with high barrier | Joshua R. Cloutier, Keunsuk P. Chang | 2016-04-19 |
| 8916080 | Method to produce matte and opaque biaxially oriented polylactic acid film | Mark S. Lee, Harold Egon Koehn, Keunsuk P. Chang | 2014-12-23 |
| 8911870 | Method to produce matte and opaque biaxially oriented polylactic acid film | Mark S. Lee, Harold Egon Koehn, Keunsuk P. Chang | 2014-12-16 |
| 8652626 | Biaxially oriented metallized polylactic acid film with high metal adhesion and high barrier properties | Mark S. Lee, Claudio M. Paulino, Keunsuk P. Chang, Nao Yokota, Jun'ichi Masuda | 2014-02-18 |
| 5018072 | Optically readable mail system with general and receiver specific information | Masahiko Ibamoto, Yasuo Morooka, Hiroaki Koyanagi, Manabu Sato | 1991-05-21 |