Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6561627 | Thermal actuator | John A. Lebens | 2003-05-13 |
| 5889234 | Zirconia ceramic members with laser induced electrical conductivity in surfaces thereof | Syamal K. Ghosh, Dilip K. Chatterjee, David C. Press | 1999-03-30 |
| 5836248 | Zirconia-alumina composite ceramic lithographic printing member | Dilip K. Chatterjee, Syamal K. Ghosh | 1998-11-17 |
| 5827470 | Method for preparing a zirconia/zirconium diboride composite | Dilip K. Chatterjee, Syamal K. Ghosh | 1998-10-27 |
| 5786600 | (Barium hafnate:Ti, Ce, Pb) phosphors phosphor screens and phosphor preparation methods | Patrick M. Lambert, Philip S. Bryan | 1998-07-28 |
| 5702766 | Process of forming a ceramic article containing a core comprising zirconia and a shell comprising zirconium boride | Dilip K. Chatterjee, Syamal K. Ghosh | 1997-12-30 |
| 5698857 | (Barium hafnate: Cu) phosphors and phosphor screens | Patrick M. Lambert, David P. Trauernicht | 1997-12-16 |
| 5696040 | Ceramic article containing a core comprising zirconia and a shell comprising zirconium boride | Dilip K. Chatterjee, Syamal K. Ghosh | 1997-12-09 |
| 5695828 | Method for inducing electrical conductivity in zirconia ceramic surfaces | Syamal K. Ghosh, Dilip K. Chatterjee, David C. Press | 1997-12-09 |
| 5688731 | Ceramic articles containing doped zirconia having high electrical conductivity | Dilip K. Chatterjee, Syamal K. Ghosh | 1997-11-18 |
| 5683481 | Method of making core shell structured articles based on alumina ceramics having spinel surfaces | Dilip K. Chatterjee, Syamal K. Ghosh | 1997-11-04 |
| 5679611 | Ceramic article containing a core comprising tetragonal zirconia and a shell comprising zirconium nitride | Dilip K. Chatterjee, Syamal K. Ghosh | 1997-10-21 |
| 5672302 | In-situ surface nitridation of zirconia ceramics | Dilip K. Chatterjee, Syamal K. Ghosh | 1997-09-30 |
| 5173611 | Phosphor composition and X-ray intensifying screen exhibiting peak emission in the ultraviolet | Patrick M. Lambert, Philip S. Bryan, Christine M. Towers | 1992-12-22 |
| 5112700 | Phosphor composition and X-ray intensifying screen capable of emitting principally in the spectral region of native silver halide sensitivity | Patrick M. Lambert, Philip S. Bryan, Christine M. Towers | 1992-05-12 |
| 5095218 | X-ray intensifying screen with enhanced emission | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1992-03-10 |
| 5017791 | X-ray intensifying screen including a titanium activated hafnium dioxide phosphor containing yttrium to reduce afterglow | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-05-21 |
| 5008034 | Titanium activated hafnia and/or zirconia host phosphor containing neodymium | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-04-16 |
| 4996003 | Titanium activated hafnia and/or zirconia host phosphor containing a selected rare earth | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-02-26 |
| 4994205 | Composition containing a hafnia phosphor of enhanced luminescence | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-02-19 |
| 4992205 | Titanium activated hafnia and/or zirconia host phosphor containing indium | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-02-12 |
| 4990282 | Titanium activated hafnia and/or zirconia host phosphor containing scandium | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-02-05 |
| 4988880 | X-ray intensifying screen containing hafnia phosphor | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-01-29 |
| 4988881 | Tin-activated lithium hafnate phosphor composition and X-ray intensifying screen | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-01-29 |
| 4983847 | X-ray intensifying screen including a titanium activated hafnium dioxide phosphor containing indium | Philip S. Bryan, Patrick M. Lambert, Christine M. Towers | 1991-01-08 |