Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384963 | Drilling mud composition containing a starch product and a method for drilling a well | Gerrit H. Soepenberg, Albert Laarman | 1983-05-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384963 | Drilling mud composition containing a starch product and a method for drilling a well | Gerrit H. Soepenberg, Albert Laarman | 1983-05-24 |