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. 02, 2005
Filed:
Feb. 05, 2003
Applicants:
Robert Hammond-smith, Dammerham, GB;
John Patrick, Poole, GB;
Donald Gordon Graham, Corfe Mullen, GB;
Inventors:
Robert Hammond-Smith, Dammerham, GB;
John Patrick, Poole, GB;
Donald Gordon Graham, Corfe Mullen, GB;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
G02F001/1337 ; G02F001/1335 ; C09K019/52 ; C09K019/00 ;
U.S. Cl.
CPC ...
Abstract
A birefringent film comprising at least one birefringent layer of liquid crystal material forming multi domains with a splayed structure may be coated onto a reflective substrate, e.g., with an aluminium surface. The birefringent film is particularly suited for decorative, security, authentification or identification applications.