Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849191 | Economical, safe, unsupervised method for in-vessel regeneration of iron-oxide sponge used in wastewater-treatment-plant digester-gas scrubbers | — | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849191 | Economical, safe, unsupervised method for in-vessel regeneration of iron-oxide sponge used in wastewater-treatment-plant digester-gas scrubbers | — | 1989-07-18 |