Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5327943 | Multi-purpose nozzle with liquid pickup | Harry B. Hartman | 1994-07-12 |
| 5325896 | Stage II vapor recovery system | Wolfgang Koch, Michael S. Butkovich, Harry B. Hartman | 1994-07-05 |
| 5289856 | Multi-purpose nozzle with liquid pickup | Harry B. Hartman | 1994-03-01 |
| D342742 | Fuel dispenser handle | Charles M. Daul, Philip Jones, Wolfgang Koch | 1993-12-28 |
| 5273087 | Vapor recovery nozzle with flow indicators | Wolfgang Koch, Harry B. Hartman, Michael S. Butkovich, Terrance L. Lambert, Charles M. Daul +1 more | 1993-12-28 |
| D341595 | Fuel dispenser handle | Harry B. Hartman, Terrance L. Lambert, Wolfgang Koch | 1993-11-23 |
| 5244017 | Fuel and vapor flow signaling process | Harry B. Hartman, Wolfgang Koch, Terrance L. Lambert | 1993-09-14 |
| D338210 | Fuel dispenser handle | Terrance L. Lambert, Michael S. Butkovich, Wolfgang Koch | 1993-08-10 |
| 5234036 | Dispensing fuel with aspiration of condensed vapors | Michael S. Butkovich | 1993-08-10 |
| D338209 | Fuel dispenser handle | Michael S. Butkovich, Wolfgang Koch | 1993-08-10 |
| 5213142 | Stage II vapor recovery system | Wolfgang Koch, Michael S. Butkovich, Harry B. Hartman | 1993-05-25 |
| 5199471 | Process to prevent vapor blockage for stage II vapor recovery | Harry B. Hartman, Michael S. Butkovich, Wolfgang Koch | 1993-04-06 |
| 4763805 | Underground tank assembly with internal bladder | — | 1988-08-16 |
| 4648523 | Underground tank assembly with internal bladder | — | 1987-03-10 |
| 4471806 | Fuel delivery system having thermal contraction compensation | — | 1984-09-18 |