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. 09, 2000
Filed:
Jun. 05, 1998
Applicant:
Inventors:
Joaquim Henrique Teles, Altrip, DE;
Norbert Rieber, Mannheim, DE;
Klaus Breuer, Altrip, DE;
Dirk Demuth, Mannheim, DE;
Hartmut Hibst, Schriesheim, DE;
Alfred Hagemeyer, Rheine, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ;
U.S. Cl.
CPC ...
423326 ; 423325 ; 423324 ; 423 99 ;
Abstract
Compounds of the formulae I and II ##STR1## are prepared by an addition reaction of a compound of the formula III