Inventor · disambiguated record
Hendrik Jan Ijlstra
Also filed as: IJLSTRA HENDRIK JAN
3 granted patents·27 citations·filing 1972–1976
68Inventor score
Top patents by PatentIndex Score
3 records- 0152US4104484AConductor lead-throughULTRA CENTRIFUGE NEDERLAND NV·Filed 1976·Granted Aug 1, 1978·17 cites·2 claims
- 0236US3942803AGastight passage sealREACTOR CENTRUM NEDERLAND·Filed 1972·Granted Mar 9, 1976·7 cites·1 claims
- 0326US4091520AProcess for making a gastight passageSTICHTING REACTOR CENTRUM·Filed 1975·Granted May 30, 1978·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →