Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264185 | High pressure and high temperature digestion vessel | — | 1993-11-23 |
| 5204065 | High pressure and high temperature digestion vessel | — | 1993-04-20 |
| 4946797 | Microwave-based Kjeldahl method | Edwin D. Neas | 1990-08-07 |
| 4904450 | High temperature and high pressure digestion vessel assembly | — | 1990-02-27 |
| 4882286 | Digestion apparatus useful for a kjeldahl method | Edwin D. Neas | 1989-11-21 |
| 4877624 | Digestion and sterilization methods and apparatus | Wyatt Price Hargett, Jr. | 1989-10-31 |
| 4861556 | Microwave-based apparatus and Kjeldahl method | Edwin D. Neas | 1989-08-29 |
| 4672996 | Self-regulating valve | Wyatt Price Hargett, Jr. | 1987-06-16 |
| 4503593 | Stuffer box crimper | James A. Williams | 1985-03-12 |
| 4411280 | Ventilated thermoplastic polymer foam filter rods | Donna G. Rhoden, Walter E. Bradley | 1983-10-25 |