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:
Mar. 29, 2016
Filed:
Mar. 21, 2012
Andreas Hoffmann, Pulheim, DE;
Torsten Erwe, Odenthal, DE;
Udo Maier, Pulheim, DE;
Hans-guido Wirtz, Leverkusen, DE;
Thomas Kleiner, Odenthal, DE;
Ralf Busch, Köln, DE;
Andreas Hoffmann, Pulheim, DE;
Torsten Erwe, Odenthal, DE;
Udo Maier, Pulheim, DE;
Hans-Guido Wirtz, Leverkusen, DE;
Thomas Kleiner, Odenthal, DE;
Ralf Busch, Köln, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
A process for the production of ballast for railway track laying, road construction, dam construction and bank protection, wherein ballast stones are spread out to form ballast and a reaction mixture for the preparation of a polyurethane foam, produced from components by a low-pressure process, is applied between the spread ballast stones.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile