WB

Walter Barthel

DA Degussa Ag: 8 patents #139 of 2,007Top 7%
SD Square D: 1 patents #408 of 756Top 55%
Overall (All Time): #527,403 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5382348 Granular bitumen coated with precipitated silica Karl-Hans Muller 1995-01-17
5157590 Mounting bracket for a programmable logic controller control module John Maggelet 1992-10-20
5053279 Granular bitumen coated with carbon black or silica Ivo Daniëls, Reinhard Manner, Karl-Hans Mueller 1991-10-01
4993884 Method and spraying apparatus for applying a layer of air-sprayed concrete Karl-Hans Mueller 1991-02-19
4710229 Powdered bitumen concentrate and its use Karl-Hans Muller 1987-12-01
4410589 Process for improving the mineral asphalt coatings for streets and paths and products Karl-Hans Muller, Rolf Oelmuller 1983-10-18
4378999 Pulverulent bitumen concentrate and its use Karl-Hans Muller 1983-04-05
4375988 Bituminous binder, process for its production and use Karl-Hans Mueller 1983-03-08
4371400 Mastic asphalt composition Karl-Hans Muller 1983-02-01
4322250 Mastic asphalt mixture Karl-Hans Muller 1982-03-30