Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12151211 | Electro-pressure membrane method for recovery and concentration of lithium from aqueous sources | — | 2024-11-26 |
| 11655173 | Methods of separating and isolating water and other desired constituents from oilfield produced brines | — | 2023-05-23 |
| 10920417 | Fire-resistant building joint system | John C. Hulteen, George W. Frost, Robert E. Gestner, Richard J. Haffner | 2021-02-16 |
| 10899646 | Methods of separating and isolating water and other desired constituents from oilfield produced brines for reuse | — | 2021-01-26 |
| 10823313 | Smoke and sound barrier for a building penetration | John C. Hulteen, George W. Frost, Richard J. Haffner | 2020-11-03 |
| 10662644 | Penetration firestop system | John C. Hulteen, George W. Frost, Richard J. Haffner | 2020-05-26 |
| 10597867 | Smoke and sound barrier for a building joint system | John C. Hulteen, George W. Frost, Richard J. Haffner | 2020-03-24 |
| 8636076 | Method of firestopping a through-penetration using a fusible inorganic blended-fiber web | Brandon L. Cordts, George W. Frost | 2014-01-28 |
| 8161696 | Sleeve system and method of using | Ted D Colwell, Kristen A. Jensen, Rebecca C. Lee | 2012-04-24 |
| 8069623 | Sleeve system and method of using | Ted D Colwell, Kristen A. Jensen, Rebecca C. Lee | 2011-12-06 |
| 7501064 | Integrated electro-pressure membrane deionization system | Alois Sferrazza, Michael E. Williams | 2009-03-10 |
| 7322782 | Device for fixing and/or positioning objects in a transport container | — | 2008-01-29 |
| 7197637 | Authorization process using a certificate | Burkhard Kuhls | 2007-03-27 |
| 7026477 | Process for preparing substituted phenylsulfonylureas from sulfonyl halides | Jan Vermehren, Mark James Ford, Richard Foster, Ian A. Bourne | 2006-04-11 |
| 6816971 | Signature process | Burkhard Kuhls | 2004-11-09 |
| 6537436 | System for electrodialysis treatment of liquids | Michael E. Williams, Brian Schmidt, James Donald Schmidt, Erich Schmidt | 2003-03-25 |
| 6274020 | Electrodialysis membrane and gasket stack system | Michael E. Williams, Brian Schmidt, James Donald Schmidt, Erich Schmidt | 2001-08-14 |
| 5887342 | Method for making an electronic control unit | Reinhold Maier | 1999-03-30 |
| 5839865 | Device for the nonskid transport of objects on loading surfaces of motor vehicles | — | 1998-11-24 |
| 5019713 | Radiation therapy device with moveable aperture plate | — | 1991-05-28 |
| 4716917 | Tank washing system | — | 1988-01-05 |