Inventor · disambiguated record
Robert Van Helden
Also filed as: VAN HELDEN ROBERT · VAN HELDEN ROBERT S
7 granted patents·18 citations·filing 1977–2007
79Inventor score
Top patents by PatentIndex Score
7 records- 0178US7803224B2Paper and coating medium for multifunctional printingNEWPAGE WISCONSIN SYSTEM INC·Filed 2007·Granted Sep 28, 2010·8 cites·18 claims
- 0255US4146737AChlorination of 3-phenoxytolueneSHELL OIL CO·Filed 1977·Granted Mar 27, 1979·4 cites·1 claims
- 0350US4436937AProcess for the ring alkylation of an anilineSHELL OIL CO·Filed 1982·Granted Mar 13, 1984·4 cites·8 claims
- 0441US4569795AArylsulphonyl azetidine compounds, their preparation and their use as intermediatesSHELL OIL CO·Filed 1984·Granted Feb 11, 1986·1 cites·1 claims
- 0537US4591457AArysulphonyl azetidine compounds used as intermediatesSHELL OIL CO·Filed 1985·Granted May 27, 1986·1 cites·1 claims
- 0633US4533379AHerbicidal urea compoundsSHELL OIL CO·Filed 1983·Granted Aug 6, 1985·0 cites·9 claims
- 0731US4497966AProcess for the preparation of nitrophenylalkanolsSHELL OIL CO·Filed 1983·Granted Feb 5, 1985·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →