Inventor · disambiguated record
Johannes K. Van Der Drift
Also filed as: DRIFT JOHANNES KAREL VAN DER · VAN DER DRIFT JOHANNES K · VAN DER DRIFT JOHANNES KAREL
8 granted patents·38 citations·filing 1974–1992
83Inventor score
Files withGIST BROCADES NV8
Top patents by PatentIndex Score
8 records- 0184US4128547A6-(D-α-Amino-p-hydroxyphenylacetamido)-penicillanic acid preparationGIST BROCADES NV·Filed 1977·Granted Dec 5, 1978·14 cites·8 claims
- 0278US4358588AProcess for preparing cephalosporanic acid compoundsGIST BROCADES NV·Filed 1980·Granted Nov 9, 1982·12 cites·13 claims
- 0354US4528135AProcess for the preparation of penicillanic acid 1,1-dioxidesGIST BROCADES NV·Filed 1983·Granted Jul 9, 1985·5 cites·10 claims
- 0448US3945994ANovel acid compoundsGIST BROCADES NV·Filed 1974·Granted Mar 23, 1976·3 cites·8 claims
- 0542US4318852ASodium amoxicillin solvateGIST BROCADES NV·Filed 1981·Granted Mar 9, 1982·3 cites·1 claims
- 0632US4067986ANovel penicillanic acidGIST BROCADES NV·Filed 1975·Granted Jan 10, 1978·1 cites·11 claims
- 0730US5266693A6-diazo-penicillanic acid 1,1-dioxide derivativesGIST BROCADES NV·Filed 1992·Granted Nov 30, 1993·0 cites·7 claims
- 0830US4619786APreparation of 6-α-bromo- and/or 6,6-dibromo-penicillanic acid-1,1-dioxidesGIST BROCADES NV·Filed 1983·Granted Oct 28, 1986·0 cites·21 claims
Join the waitlist — get patent alerts
Get an alert when Johannes K. Van Der Drift files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →