Helmut Rehlen — 2 Patents at Unknown

Helmut Rehlen has been granted 2 US patents while listed as an inventor at Unknown. The first was granted in 1982 and the most recent in October 1986. Helmut Rehlen ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Helmut Rehlen in Bad Schussenried, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4615411	Sound-insulated flow duct and process for the manufacture thereof	Hans-Ulrich Breitscheidel, Cosmas Lorry, Jurgen Roellinghoff	1986-10-07
4364892	Process for surface treatment of foamed sheets	Jurgen Roellinghoff	1982-12-21

Helmut Rehlen — 2 Patents

Issued Patents All Time

Patent Widget