Donald R. Randell

Person

Stockport, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Crosslinked N-substituted chitosan derivatives
- Patent number 5,977,330
- Issue date Nov 2, 1999
- Ciba Specialty Chemicals Corporation
- Dieter Lohmann
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
N-substituted chitosan derivatives in a process for their preparation
- Patent number 5,708,152
- Issue date Jan 13, 1998
- Ciba Specialty Chemicals Corporation
- Dieter Lohmann
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Unsaturated polymers of heterocyclic olefins
- Patent number 5,084,539
- Issue date Jan 28, 1992
- Ciba-Geigy Corporation
- William J. Feast
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for preparation of metal salts of methyl phosphonic acids
- Patent number 4,973,727
- Issue date Nov 27, 1990
- Ciba-Geigy Corporation
- James Gainer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymers
- Patent number 4,963,631
- Issue date Oct 16, 1990
- Ciba-Geigy Corporation
- Donald R. Randell
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Piperidine derivatives
- Patent number RE31343
- Issue date Aug 9, 1983
- Ciba-Geigy Corporation
- Brian Holt
- 546 - Organic compounds
Information Patent Grant
Piperidyl carboxylates
- Patent number RE31342
- Issue date Aug 9, 1983
- Ciba-Geigy Corporation
- Brian Holt
- 542 -
Information Patent Grant
Dithiophosphate lubricant additives
- Patent number 4,333,841
- Issue date Jun 8, 1982
- Ciba-Geigy Corporation
- Andreas Schmidt
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Anthraquinone sulphonamide compounds and preparation
- Patent number 4,276,224
- Issue date Jun 30, 1981
- Ciba-Geigy Corporation
- Donald R. Randell
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Gas purification process
- Patent number 4,251,493
- Issue date Feb 17, 1981
- Ciba-Geigy Corporation
- Donald R. Randell
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Flame-resistant polymer compositions
- Patent number 4,248,976
- Issue date Feb 3, 1981
- Ciba-Geigy AG
- Brian G. Clubley
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Plastics composition
- Patent number 4,207,224
- Issue date Jun 10, 1980
- Ciba-Geigy AG
- Donald R. Randell
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Flame-resistant polymer compositions
- Patent number 4,172,858
- Issue date Oct 30, 1979
- Ciba-Geigy AG
- Brian G. Clubley
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Fire resistant functional fluid compositions based on phosphate est...
- Patent number 4,163,731
- Issue date Aug 7, 1979
- Ciba-Geigy AG
- Donald R. Randell
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Polymers stabilized by esters of piperidinols
- Patent number 4,110,305
- Issue date Aug 29, 1978
- Ciba-Geigy Corporation
- Brian Holt
- C07 - ORGANIC CHEMISTRY

Donald R. Randell

Person

Patents Grantslast 30 patents

Crosslinked N-substituted chitosan derivatives

N-substituted chitosan derivatives in a process for their preparation

Unsaturated polymers of heterocyclic olefins

Method for preparation of metal salts of methyl phosphonic acids

Polymers

Piperidine derivatives

Piperidyl carboxylates

Dithiophosphate lubricant additives

Anthraquinone sulphonamide compounds and preparation

Gas purification process

Flame-resistant polymer compositions

Plastics composition

Flame-resistant polymer compositions

Fire resistant functional fluid compositions based on phosphate est...

Polymers stabilized by esters of piperidinols