The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2007
Filed:
May. 06, 2004
Reinhard Schaefer, Heidenheim, DE;
Robert Nichols, Santa Rosa, CA (US);
Florence Taitel, Hooksett, NH (US);
Reinhard Schaefer, Heidenheim, DE;
Robert Nichols, Santa Rosa, CA (US);
Florence Taitel, Hooksett, NH (US);
Patent-Treuhand-Gesellschaft fur Elektrisch Gluhlampen mbH, Munich, DE;
Deposition Sciences Incorporated, Santa Rosa, CA (US);
Abstract
A lamp includes a transparent envelope having a first region defining an enclosed interior volume and a closure region adjacent to the first region, a light source in the interior volume and electrically coupled through the closure region, an interference filter coating on the exterior of the first region, and a light absorbing coating that is 7–40 nanometers thick on the exterior of the first region, except in a ring-shaped portion adjacent to the closure region that has a thickness of 50–200 nanometers.