Roehrich; Roland L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Roehrich; Roland L..The latest application filed is for "air conditioning and refrigeration systems utilizing a cryogen and heat pipes".

Company Profile

0.9.0

Roehrich; Roland L. - Pittsburgh PA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Air conditioning and refrigeration systems utilizing a cryogen and heat pipes Grant 5,458,188 - Roehrich , et al. October 17, 1	1995-10-17
Air conditioning and refrigeration systems utilizing a cryogen Grant 5,365,744 - Viegas , et al. November 22, 1	1994-11-22
Air conditioning and refrigeration methods and apparatus utilizing a cryogen Grant 5,315,840 - Viegas , et al. May 31, 1	1994-05-31
Air conditioning and refrigeration apparatus utilizing a cryogen Grant 5,311,927 - Taylor , et al. May 17, 1	1994-05-17
Air conditioning and refrigeration apparatus utilizing a cryogen Grant 5,305,825 - Roehrich , et al. April 26, 1	1994-04-26
Air conditioning and refrigeration apparatus utilizing a cryogen Grant 5,285,644 - Roehrich , et al. February 15, 1	1994-02-15
Air conditioning and refrigeration systems utilizing a cryogen Grant 5,267,446 - Viegas , et al. December 7, 1	1993-12-07
Air conditioning and refrigeration methods and apparatus utilizing a cryogen Grant 5,267,443 - Roehrich , et al. December 7, 1	1993-12-07
Air conditioning and refrigeration systems utilizing a cryogen Grant 5,259,198 - Viegas , et al. November 9, 1	1993-11-09

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