Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032373 | Apparatus and process | Frank Smith | 1991-07-16 |
| 5028396 | Apparatus formed of high silicon chromium/nickel in steel in the manufacture of sulpheric acid | Frank Smith | 1991-07-02 |
| 4543244 | Use of high silicon Cr Ni steel in H.sub.2 SO.sub.4 manufacture | Frank Smith | 1985-09-24 |
| 4284469 | Method and apparatus for concentrating a liquid | Michio Ikura, Harley C. Prime, Ian Rodger | 1981-08-18 |
| 4213958 | Production of sulphur trioxide, sulphuric acid and oleum | Gordon M. Cameron, Peter Daniel Nolan | 1980-07-22 |
| 4193529 | Method for interconnecting dissimilar metals welding to an explosively bonded bimetallic coupling | Charles B. Dick, Curtis L. Knutson, Richard D. Ireland | 1980-03-18 |