Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8684101 | Frangible shape memory alloy fire sprinkler valve actuator | Alfred David Johnson, Roger Graham Gilbertson | 2014-04-01 |
| 8584767 | Sprinkler valve with active actuation | Alfred David Johnson, Roger Graham Gilbertson | 2013-11-19 |
| 8506767 | Thin-film shape memory alloy device and method | A. David Johnson, Vikas Gupta, Arani Bose | 2013-08-13 |
| 7981258 | Thin-film shape memory alloy device and method | A. Johnson, Arani Bose, Vikas Gupta | 2011-07-19 |
| 7842143 | Hyperelastic shape setting devices and fabrication methods | Alfred David Johnson, Michael Bokaie, George R. Gray | 2010-11-30 |
| 7632361 | Single crystal shape memory alloy devices and methods | A. David Johnson, Michael Bokaie | 2009-12-15 |
| 7544257 | Single crystal shape memory alloy devices and methods | A. David Johnson, Michael Bokaie | 2009-06-09 |
| 7422403 | Non-explosive releasable coupling device | A. David Johnson, Michael Bokaie | 2008-09-09 |
| 7084726 | Thin film shape memory alloy actuated microrelay | Vikas Gupta | 2006-08-01 |
| 7040323 | Thin film intrauterine device | Leticia Menchaca, A. David Johnson, Vikas Gupta | 2006-05-09 |
| 6746890 | Three dimensional thin film devices and methods of fabrication | Vikas Gupta, A. David Johnson, Letecia Menchaca | 2004-06-08 |
| 6669795 | Methods of fabricating high transition temperature SMA, and SMA materials made by the methods | A. David Johnson | 2003-12-30 |
| 6624730 | Thin film shape memory alloy actuated microrelay | A. David Johnson, Vikas Galhotra, Vikas Gupta | 2003-09-23 |
| 6620634 | Method of accurately measuring compositions of thin film shape memory alloys | A. David Johnson | 2003-09-16 |
| 6533905 | Method for sputtering tini shape-memory alloys | A. David Johnson, Vikas Gupta, Arani Bose | 2003-03-18 |