Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9797539 | Pipe rehabilitation method | — | 2017-10-24 |
| 9746121 | Spacer for positioning a rehabilitating pipe | Makoto Ishida, Takeshi Hasegawa, Katsuyori Miura, Takashi Okubo | 2017-08-29 |