Inventor · disambiguated record

Johannus B. J. Spijkerman

Also filed as: SPIJKERMAN JOHANNUS B J

2 granted patents·38 citations·filing 1989–1995

58Inventor score

Technology areasC01B Y02W

Files withENTHOVEN H J LTD1 SHELL RES LTD1

Top patents by PatentIndex Score

2 records

0169US5514263AProcess for the recovery of metallic lead from battery pasteENTHOVEN H J LTD·Filed 1995·Granted May 7, 1996·37 cites·20 claims
0220US4975162ARemoval of cadmium from phosphoric acid-containing solutionsSHELL RES LTD·Filed 1989·Granted Dec 4, 1990·1 cites·5 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →