RH

Robert van Helden

Shell Oil Compny: 5 patents #661 of 4,423Top 15%
NS Newpage Wisconsin System: 1 patents #5 of 15Top 35%
📍 Amsterdam, WI: #1 of 1 inventorsTop 100%
Overall (All Time): #869,067 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7803224 Paper and coating medium for multifunctional printing Leonard J. Schliesman, James P. Niemiec, Fikret Kaya 2010-09-28
4591457 Arysulphonyl azetidine compounds used as intermediates Gary Scholes 1986-05-27
4569795 Arylsulphonyl azetidine compounds, their preparation and their use as intermediates Gary Scholes 1986-02-11
4533379 Herbicidal urea compounds Frank Baardman, Johannes L. M. Syrier 1985-08-06
4497966 Process for the preparation of nitrophenylalkanols Petrus A. Kramer 1985-02-05
4436937 Process for the ring alkylation of an aniline Frank Baardman, Margaretha J. de Nie-Sarink 1984-03-13