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:
Dec. 28, 1982
Filed:
Feb. 28, 1980
Applicant:
Inventors:
Gerhard Kuhner, Hanau, DE;
Wilhelm Berndt, Frankfurt, DE;
Lothar Rothbuhr, Hurth, DE;
Hans Wagner, Maintal, DE;
Assignee:
Degussa Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C09C / ;
U.S. Cl.
CPC ...
423449 ; 423450 ; 106307 ; 23314 ; 264117 ;
Abstract
Beaded carbon black is disclosed with a water content of 30 to 80% by weight which are used for coloring of paper and concrete. The product has the advantage of dust-free handling and a higher jet black color compared to conventional carbon black powder.
Kuhner, Gerhard. (1982). Process for the production of water containing carbon black preparations (U.S. Patent No. 4366139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4366139
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile