Inventor · disambiguated record
Willem J. De Klein
Also filed as: DE KLEIN WILLEM J
7 granted patents·92 citations·filing 1975–1981
84Inventor score
Top patents by PatentIndex Score
7 records- 0188US4293345AWax composition for entirely or partly replacing carnauba wax or montan waxAKZONA INC·Filed 1979·Granted Oct 6, 1981·56 cites·3 claims
- 0275US4014910AProcess for the preparation of an (ar)alkane carboxylic acidAKZO NV·Filed 1975·Granted Mar 29, 1977·11 cites·12 claims
- 0361US4323495ANovel branched-chain monoalcohols and derivatives thereof, lubricant compositions for polymers and wax compositions in which these novel products are incorporatedAKZONA INC·Filed 1979·Granted Apr 6, 1982·6 cites·15 claims
- 0455US4283314AResin composition having improved internal and external lubricating properties employing branched chain high molecular weight ester derivatives of monocarboxylic acidsAKZONA INC·Filed 1979·Granted Aug 11, 1981·9 cites·12 claims
- 0543US4322570AProcess for the addition of a chlorinated methane containing at least three chlorine atoms to an ethylenically unsaturated hydrocarbonAKZONA INC·Filed 1977·Granted Mar 30, 1982·2 cites·13 claims
- 0639US4411823AInitiator system for radiation curable compositions, radiation curable compositions containing such an initiator system, a process for curing said compositions and products covered therewithAKZO NV·Filed 1981·Granted Oct 25, 1983·5 cites·10 claims
- 0731US4328112AProcess for the preparation of sulfur-containing additives for lubricant compositionsAKZONA INC·Filed 1981·Granted May 4, 1982·3 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Willem J. De Klein 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 →