Siegfried Brandt — 9 Patents at Huels Aktiengesellschaft

Siegfried Brandt has been granted 9 US patents while listed as an inventor at Huels Aktiengesellschaft. The first was granted in 1981 and the most recent in November 2002. Siegfried Brandt ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Siegfried Brandt in Herne, DE.

Patents per Year

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
6479613	Process for the preparation of polyaddition products containing uretdione groups, and their use in polyurethane coating systems	Rainer Gras, Klaus Behrendt, Silvia Herda	2002-11-12
5728795	Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating systems	Rainer Gras	1998-03-17
5646228	Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating systems	Rainer Gras	1997-07-08
5541279	Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating systems	Rainer Gras	1996-07-30
4566931	Heat sealing textiles with copolyamides	Hans J. Panoch, Rainer Feldmann, Hans Hinn, Hans-Jurgen Haage	1986-01-28
4382555	Device for the fast changing of the operating method of spraying units on wheels	Bruno Ucinhazska, Josef Disteldorf, Werner Hubel, Hans-Jurgen Haage	1983-05-10
4373088	Transparent polyamides from branched chain diamine and cycloaliphatic diamine	Josef Disteldorf, Werner Hubel, Hans-Jurgen Haage	1983-02-08
4250291	Melt adhesive based on polyamide from branched chain diamine	Fritz Gude	1981-02-10
4248654	Securing substrates together with melt adhesives based on polyamides	Fritz Gude	1981-02-03