Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7757886 | Low cost spill-and-glug-resistant cup and container | — | 2010-07-20 |
| 7641070 | Low cost spill-resistant cup for liquids | — | 2010-01-05 |
| 6758375 | Spill-resistant, smoother pouring container for liquids | — | 2004-07-06 |
| 6460741 | Spill-resistant bottle for liquids and the like | — | 2002-10-08 |
| 6374541 | Spill-resistant container for liquids | — | 2002-04-23 |
| 6233871 | Design of planter inserts and water reservoirs | — | 2001-05-22 |
| 6098850 | Non-spill bottle for liquids and the like | — | 2000-08-08 |
| 5934017 | Design of planter and water reservoir/liquid bottle | — | 1999-08-10 |
| 5693161 | No-flat tire and no flat tire insert | — | 1997-12-02 |
| 5026260 | Turbocharger with turbine backplate and center housing oil shield | Daniel A. Gutknecht | 1991-06-25 |
| 4971091 | Dispenser for irrigation chemicals with fail-safe antisiphon valve | — | 1990-11-20 |
| 4907618 | Dispenser for irrigation chemicals | — | 1990-03-13 |
| 4887694 | High rise building fire escape/fire fighting and building maintenance system | — | 1989-12-19 |
| 4884609 | No-flat tire insert | — | 1989-12-05 |
| 4881568 | Irrigation chemical dispenser | — | 1989-11-21 |
| 4828072 | High rise building fire escape/fire fighting and building maintenance system | — | 1989-05-09 |
| 4791994 | Book/painting/treasure/equipment saver | — | 1988-12-20 |
| 4784586 | Turbocharger having controlled heat transfer for bearing protection | — | 1988-11-15 |