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:
May. 16, 2006
Filed:
Apr. 28, 2004
Applicants:
Ufuk Senturk, Bridgeport, PA (US);
Michael P. Lanci, Baltimore, MD (US);
Raymond Jackson, Durham, GB;
John W. Lau, Villanova, PA (US);
Inventors:
Ufuk Senturk, Bridgeport, PA (US);
Michael P. Lanci, Baltimore, MD (US);
Raymond Jackson, Durham, GB;
John W. Lau, Villanova, PA (US);
Assignee:
PQ Corporation, Berwyn, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 12/00 (2006.01); C03C 3/078 (2006.01); C03C 3/089 (2006.01);
U.S. Cl.
CPC ...
Abstract
Glass formulations, and a method of converting such glass formulations to glass beads having a refractive index of at least 1.59 and a high level of retroreflectivity, are provided. The methods and formulations provide beads also having high levels of resistance to degradation by environmental exposure.