Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641864 | Wear resistant pipe bend for slurry transport | Otto R. Heine | 1987-02-10 |
| 4565210 | Throttling and shut-off valve for slurry pipelines and the like | Otto R. Heine | 1986-01-21 |
| 4285239 | Apparatus for measuring varying density of a slurry flowing in a pipeline | Otto R. Heine | 1981-08-25 |