Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6345632 | Method of cleaning and passivating a fire protection system | Jerome H. Ludwig | 2002-02-12 |
| 6076536 | Cleaning and passivating water distribution systems | Jerome H. Ludwig | 2000-06-20 |
| 5895763 | Controlled carbonate removal from water conduit systems | Craig Edstrand, Edward R. Fyfe, Jerome H. Ludwig, Dan Temple | 1999-04-20 |
| 5800629 | Pipe system cleaning and in-line treatment of spent cleaning solution | Jerome H. Ludwig, Dan Temple, Edward R. Fyfe | 1998-09-01 |
| 5680877 | System for and method of cleaning water distribution pipes | Craig Edstrand | 1997-10-28 |