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. 11, 1991
Filed:
Feb. 28, 1990
Applicant:
Inventor:
Keith E Strege, Branchburg Township, Somerset County, NJ (US);
Assignee:
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437129 ; 148D / ; 148D / ; 148D / ; 148 334 ; 437 90 ; 437133 ; 437247 ; 437972 ; 372 96 ;
Abstract
A quaternary semiconductor diffraction grating, such as an InGaAsP grating suitable for a DFB laser, is embedded in a semiconductor substrate, such as InP. In one embodiment, the grating is fabricated by
Strege, Keith. (1991). Method for fabricating self-stabilized semiconductor gratings (U.S. Patent No. 5023198). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5023198
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile