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:
Aug. 21, 2001
Filed:
Aug. 03, 1999
Applicant:
Inventors:
Xiaojie Xu, Littleton, CO (US);
Foster Laverne Harding, Castle Rock, CO (US);
Jon Frederick Bauer, Castle Rock, CO (US);
Assignee:
Johns Manville International, Inc., Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 1/300 ; C03C 1/302 ; C03C 3/087 ; B01D 3/920 ; B01D 4/600 ;
U.S. Cl.
CPC ...
C03C 1/300 ; C03C 1/302 ; C03C 3/087 ; B01D 3/920 ; B01D 4/600 ;
Abstract
Novel boron-free glass compositions are described which are particularly suited for making fine diameter glass fibers for HEPA electronic clean-room filtration media using flame-attenuation or rotary glass processing.