Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10875787 | Radium removal from aqueous media using zeolite materials | John E. Litz | 2020-12-29 |
| 9908788 | Radium removal from aqueous media using zeolite materials | John E. Litz | 2018-03-06 |
| 8663479 | Method for removing cationic contaminants from water using natural zeolite underloaded with transition metal ions to limit leakage of intrinsic arsenic therefrom | John E. Litz | 2014-03-04 |
| 7807057 | Dynamic up-flow zeolite system and method | Jody Kelso, David L. Jones | 2010-10-05 |
| 7713424 | Methods for purging absorptive materials used in the removal of contaminates from an aqueous medium | Scott E. Heffner | 2010-05-11 |
| 7520987 | System and apparatus for purging absorptive materials used in the removal of contaminates from an aqueous medium | Scott E. Heffner | 2009-04-21 |
| 7476311 | Arsenic removal from aqueous media using chemically treated zeolite materials | John E. Litz | 2009-01-13 |
| 7390414 | Regeneration of chemically treated zeolite | — | 2008-06-24 |
| 7326348 | Method for removal and destruction of ammonia from an aqueous medium | John E. Litz | 2008-02-05 |
| 7326347 | Dynamic up-flow zeolite system and method | Jody Kelso, David L. Jones | 2008-02-05 |
| 7108784 | Apparatus for removal and destruction of ammonia from an aqueous medium | John E. Litz | 2006-09-19 |
| 5996077 | Access control system and method using hierarchical arrangement of security devices | — | 1999-11-30 |
| 5796833 | Public key sterilization | Lidong Chen | 1998-08-18 |
| 5243342 | Integrated PCM level control and conversion using a lookup table | Shrikanth S. Kattemalalavadi | 1993-09-07 |
| 5115431 | Method and apparatus for packet communications signaling | Shrikanth S. Kattemalalavadi | 1992-05-19 |
| 4248843 | Treatment of phosphoric acid | Jacobus J. Gerber | 1981-02-03 |