Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D330677 | Bottle | Del M. Thornock | 1992-11-03 |
| 5038454 | Injection blow molding process for forming a package exhibiting improved child resistance | Del M. Thornock, Ronald W. Kock, Robert Paul, Peter W. Hamilton, William Willhite, Jr. | 1991-08-13 |
| 4948002 | Package exhibiting improved child resistance without significantly impeding access by adults | Del M. Thornock, Ronald W. Kock, Robert Paul, Peter W. Hamilton, William Willhite, Jr. | 1990-08-14 |
| 4837822 | Cryptographic based electronic lock system and method of operation | Thomas Crosley, Wayne Davison, Leonard L. Hofheins, Ronald D. Lichty, Charles A. Vollum +2 more | 1989-06-06 |
| D300300 | Combined door handle and lock unit | Leonard L. Hofheins | 1989-03-21 |
| 4583652 | Safety closure device | — | 1986-04-22 |
| 4573602 | Molded safety closure device and method for making same | — | 1986-03-04 |
| 4474302 | Safety champagne cork | Albert J. Kurtz | 1984-10-02 |