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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.:

US 4781970 B1

PDFFull Text
Date of Patent:
Nov. 01, 1988

Filed:

Jul. 15, 1987

Strengthening a ceramic by post sinter coating with a compressive

Applicant:
Inventors:

Steven G Barbee, Dover Plains, NY (US);

Hung-Chang Huang, San Jose, CA (US);

Donald J Hunt, Middletown, NY (US);

Jungihl Kim, Peekskill, NY (US);

Jae M Park, Mahopac, NY (US);

Charles H Perry, Poughkeepsie, NY (US);

Da-Yuan Shih, Poughkeepsie, NY (US);

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorney:

Morris; Daniel P.

Primary Examiner:

John E Kittle

Assistant Examiner:

P J Ryan

Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; C03B / ;
U.S. Cl.
CPC ...
428210 ; 428432 ; 428426 ; 4285428 ; 428678 ; 428901 ; 156 89 ; 10628716 ; 10628718 ; 10628734 ;
Abstract

Strengthened ceramic and a method for increasing the mechanical strength of fully sintered ceramic articles, in particular alumina type ceramic and glass-ceramic articles. Such articles are strengthened by forming a compresssive material layer of amorphous silicon dioxide or refractory metal nitride on the surface of the article to be strengthened.

Find Patent Forward Citations

Barbee, Steven. (1988). Strengthening a ceramic by post sinter coating with a compressive (U.S. Patent No. 4781970). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4781970

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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