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. 14, 1990
Filed:
Sep. 14, 1988
Applicant:
Inventor:
Andrew Liao, Houston, TX (US);
Assignee:
Baroid Technology, Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106628 ; 106632 ; 106633 ; 252-88 ;
Abstract
A pumpable, rehydratable grout composition comprising a water-swellable clay and an aqueous mixture comprised of a hectorite, an alkaline metal tetraborate, an alkaline metal carbonate and an alkaline metal chloride, the grout composition being useful in the sealing of earthen formations such as grouting or cementing of conduits in well bores.
Liao, Andrew. (1990). Grouting composition and method for grouting conduits in well bores (U.S. Patent No. 4948428). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4948428
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile