Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7574912 | Collapsible liquid level measurement device with attachment | John J. Fling | 2009-08-18 |
| 7444865 | Parallelogram actuated liquid level sensor | John J. Fling | 2008-11-04 |
| 7418861 | Mechanically self actuated liquid level sensor | John J. Fling | 2008-09-02 |
| 7231821 | Vertical liquid level measuring device | John J. Fling | 2007-06-19 |
| 7188521 | Horizontal liquid level measuring system | John J. Fling | 2007-03-13 |
| 7043983 | Horizontal liquid level measuring device | John J. Fling | 2006-05-16 |
| 7043984 | Automatically actuated liquid level sensor | John J. Fling | 2006-05-16 |
| 6955083 | Vertical liquid level measuring device | John J. Fling | 2005-10-18 |
| 4802363 | Apparatus and method for measuring liquid depth | John J. Fling | 1989-02-07 |