HF

Hans-Helmut Frey

CI Ciba-Geigy: 2 patents #1,054 of 2,867Top 40%
BH Bayer Healthcare: 1 patents #4,623 of 8,007Top 60%
Hoechst Gmbh: 1 patents #2,248 of 4,020Top 60%
📍 Bettingen, CH: #10 of 20 inventorsTop 50%
Overall (All Time): #1,684,912 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4348334 Process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid (nitro-Armstrong's acid) Bernhard Albrecht, Vinzenz Habermacher, Horst Behre, Lutz Kienitz, Wolfgang Schenk +2 more 1982-09-07
4280940 Thermoplastic composition comprising vinyl chloride polymer and two chlorinated polyethylenes Helmut Klug 1981-07-28
4217304 Continuous reduction process Bernhard Albrecht, Vinzenz Habermacher, Paul Havalda, Georg Halfter 1980-08-12