Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9877907 | Internal olefin sulfonate composition | Yohei Yoshikawa, Yoshinori Mitsuda, Yasuhiro Doi | 2018-01-30 |
| 9861566 | Internal olefin sulfonate composition | Yohei Yoshikawa, Yoshinori Mitsuda, Yasuhiro Doi | 2018-01-09 |
| 9861567 | Internal olefin sulfonate composition | Yohei Yoshikawa, Yoshinori Mitsuda, Yasuhiro Doi | 2018-01-09 |