Bills; Daniel G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bills; Daniel G..The latest application filed is for "apparatus and methods for heat loss pressure measurement".
- Bills; Daniel G. - Boulder CO
| Patent | Date |
|---|---|
| Apparatus and methods for heat loss pressure measurement Grant 6,945,119 - Bills , et al. September 20, 2 | 2005-09-20 |
| Apparatus and methods for heat loss pressure measurement Grant 6,938,493 - Bills , et al. September 6, 2 | 2005-09-06 |
| Apparatus and methods for heat loss pressure measurement Grant 6,865,952 - Bills , et al. March 15, 2 | 2005-03-15 |
| Apparatus And Methods For Heat Loss Pressure Measurement App 20040216528 - Bills, Daniel G. ; et al. | 2004-11-04 |
| Apparatus and methods for heat loss pressure measurement App 20040216527 - Bills, Daniel G. ; et al. | 2004-11-04 |
| Apparatus and methods for heat loss pressure measurement App 20030097876 - Bills, Daniel G. ; et al. | 2003-05-29 |
| Ionization gauge and method of using and calibrating same Grant 5,422,573 - Bills , et al. * June 6, 1 | 1995-06-06 |
| Ionization gauge and method of using and calibrating same Grant 5,296,817 - Bills , et al. March 22, 1 | 1994-03-22 |
| Ionization gauge and method of using and calibrating same Grant 5,250,906 - Bills , et al. October 5, 1 | 1993-10-05 |
| Ionization vacuum gauge with emission of electrons in parallel paths Grant 5,128,617 - Bills July 7, 1 | 1992-07-07 |
| Vacuum gauge Grant 4,307,323 - Bills , et al. December 22, 1 | 1981-12-22 |
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