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. 14, 1991
Filed:
Apr. 07, 1989
Applicant:
Inventors:
Martin Hostalek, Darmstadt, DE;
Ludwig Pohl, Darmstadt, DE;
Dietrich Erdmann, Muhltal, DE;
Herbert Schumann, Berlin, DE;
Uwe Hartmann, Berlin, DE;
Meino Heyen, Aachen, DE;
Holger Jurgensen, Aachen, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C23C / ; C23C / ;
U.S. Cl.
CPC ...
556-1 ; 556 13 ; 556 14 ; 556 20 ; 556 21 ; 556 22 ; 556 27 ; 556 30 ; 556 64 ; 556 68 ; 556 70 ; 556170 ; 556174 ; 427 58 ; 437 81 ;