Inventor · disambiguated record
Helmut Lask
Also filed as: HOLST ARNO · LASK HELMUT
19 granted patents·454 citations·filing 1974–1988
96Inventor score
Top patents by PatentIndex Score
19 records- 0193US3936441AProcess for the production of water adsorbing but water-insoluble cellulose ethersHOECHST AG·Filed 1974·Granted Feb 3, 1976·43 cites·11 claims
- 0291US4250306AProcess and equipment for preparing swellable cross-linked carboxyalkylcelluloses from natural cellulose or cellulose hydrate and use thereofHOECHST AG·Filed 1979·Granted Feb 10, 1981·41 cites·11 claims
- 0390US4136218AProcess for the improvement of the water-absorbing capacity and the absorptivity of textile materialsHOECHST AG·Filed 1975·Granted Jan 23, 1979·41 cites·5 claims
- 0489US4187342ABonded fiber web, which is capable of absorbing water vapor comprising a swellable cellulose ether in fiber formHOECHST AG·Filed 1978·Granted Feb 5, 1980·46 cites·8 claims
- 0585US4066828AProcess for the production of water-adsorbing cellulose ethersHOECHST AG·Filed 1976·Granted Jan 3, 1978·26 cites·3 claims
- 0681US4068067AProcess for the production of water-adsorbing cellulose ethersHOECHST AG·Filed 1976·Granted Jan 10, 1978·21 cites·3 claims
- 0780US3965091AProcess for the production of water-adsorbing but water-insoluble cellulose ethersHOECHST AG·Filed 1974·Granted Jun 22, 1976·38 cites·10 claims
- 0876US4200558AMethod of producing hydrophilic articles of water-insoluble polymersHOECHST AG·Filed 1978·Granted Apr 29, 1980·22 cites·2 claims
- 0974US4096312ADeposition of swellable, modified cellulose ether on water wet hydrophilic substrateHOECHST AG·Filed 1976·Granted Jun 20, 1978·22 cites·7 claims
- 1067US3990851AProcess and device for measuring antigen-antibody reactionsBEHRINGWERKE AG·Filed 1975·Granted Nov 9, 1976·20 cites·4 claims
- 1162US4186238AHydrophilic articles of water-insoluble polymersHOECHST AG·Filed 1977·Granted Jan 29, 1980·14 cites·5 claims
- 1260US4924084ADevice for determining surface moistureHOECHST AG·Filed 1988·Granted May 8, 1990·20 cites·2 claims
- 1353US4144886AAbsorbent laminateHOECHST AG·Filed 1976·Granted Mar 20, 1979·30 cites·12 claims
- 1449US4194024AMethod of making hydrophilic articles of water-insoluble polymersHOECHST AG·Filed 1978·Granted Mar 18, 1980·8 cites·1 claims
- 1548US4248595AProcess for preparing swellable cross-linked carboxyalkylcelluloses, in the form of fibers, from cellulose hydrate and use thereofHOECHST AG·Filed 1979·Granted Feb 3, 1981·21 cites·7 claims
- 1647US4096289AElectrostatic deposition of swellable, modified cellulose ether on water wet hydrophilic substrateHOECHST AG·Filed 1976·Granted Jun 20, 1978·20 cites·3 claims
- 1740US4068068AProcess for the manufacture of water-absorbing cellulose ethersHOECHST AG·Filed 1976·Granted Jan 10, 1978·13 cites·4 claims
- 1839US4015611ACigarette filterHOECHST AG·Filed 1975·Granted Apr 5, 1977·5 cites·2 claims
- 1935US4171705ACigarette filterHOECHST AG·Filed 1976·Granted Oct 23, 1979·3 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →