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:
Jun. 26, 2018
Filed:
Feb. 22, 2016
Applicant:
Robert a Marshall, Georgetown, TX (US);
Inventor:
Robert A Marshall, Georgetown, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01K 1/26 (2006.01); H01K 1/14 (2006.01); H01K 1/28 (2006.01); H01K 1/32 (2006.01);
U.S. Cl.
CPC ...
H01K 1/26 (2013.01); H01K 1/14 (2013.01); H01K 1/28 (2013.01); H01K 1/325 (2013.01);
Abstract
A high efficiency incandescent light bulb includes a filament both electrically and optically heated to visibly incandesce. The filament is enclosed in a visibly transmissive, IR reflective filter, with a high view factor, as to maximize recycling of IR wavelengths. The filter is formed on two clamshell segments.