Inventor · disambiguated record
Johannes Wilhelmus Henricus Van Rijzingen
Also filed as: VAN RIJZINGEN JOHANNES W H · VAN RIJZINGEN JOHANNES WILHELM · VAN RIJZINGEN JOHANNES WILHELMUS HENRICUS
4 granted patents·1 pending application·170 citations·filing 1992–2024
77Inventor score
Technology areasE21B
Top patents by PatentIndex Score
5 records- 0185US5340182ASafety elevatorVARCO INT·Filed 1992·Granted Aug 23, 1994·129 cites·16 claims
- 0264US8356674B2Tubular running tool and methods of useNAT OILWELL VARCO LP·Filed 2008·Granted Jan 22, 2013·11 cites·33 claims
- 0359US7762343B2Apparatus and method for handling pipeVARCO INT·Filed 2004·Granted Jul 27, 2010·30 cites·15 claims
- 0451US2025314139A1Adjustable tubular slipGRANT PRIDECO INC·Filed 2024·Application pending·0 cites
- 0534US6915857B2Non-seize material attachment for a drill slip systemVARCO INT·Filed 2004·Granted Jul 12, 2005·0 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →