Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RG

Robert Gehm — 6 Patents

Basf Se: 6 patents #2,778 of 13,826Top 25%
Schifferstadt, DE: #145 of 580 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Robert Gehm has been granted 6 US patents while listed as an inventor at Basf Se. The first was granted in 1980 and the most recent in July 1986. Robert Gehm ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Robert Gehm in Schifferstadt, DE.

Patents per Year

Patents granted per year, 1980 to 1986Bar chart with a peak of 2 patents in 1981.peak 21980: 1 patents19801981: 2 patents19811984: 2 patents19841986: 1 patents1986

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4598125 Preparation of impact-resistant nylon molding materials by alkaline lactam polymerization Peter Horn, Hellmut Bunsch, Matthias Marx 1986-07-01
4452921 Process for the preparation of polyurethane-polyisocyanurate foams Heinrich Horacek, Wolfram Frank, Matthias Marx 1984-06-05
4447561 Stable water glass solutions, process for their preparation and use for organosilicate foams as well as a production process therefor Peter Horn, Matthias Marx, Artur Roeber 1984-05-08
4305861 Process for the manufacture of stable polymer polyol dispersions Matthias Marx, Dietmar Nissen 1981-12-15
4258140 Storage-stable prepolymers sprayable from a pressure vessel Heinrich Horacek, Otto Volkert, Sarbananda Chakrabarti, Mathias Pauls, Peter Weyland 1981-03-24
4195149 Hard, rigid, non-elastomeric polyurethane, compositions Herbert Stutz 1980-03-25