Inventor
Ian M. Johnson
Inventor
West Yorkshire, GB
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds31%
C02FTreatment of water, waste water, sewage, or sludge19%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C08LCompositions of macromolecular compounds13%
A61LMethods or apparatus for sterilising materials or objects in general6%
B01FMixing, e.g. dissolving, emulsifying or dispersing6%
C08JWorking-up6%
C09KMaterials for miscellaneous applications, not provided for elsewhere6%
PatentTitleYear
6,031,037'Polymeric compositions and their production and uses'20006,001,920'Polymeric compositions and their production and uses'19995,684,106'Superabsorbent polymers and products containing them'19974,798,861'Surface treatment of polymers'19894,585,843'Exothermic reactions'19864,259,023'Apparatus and process for mixing or reacting incompletely miscible phases'19814,256,660'Sulphonated derivatives of acrylamide and their preparation'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1997Patents assigned to ALLIED COLLOIDS LTD (5)· patent assignee history
1981Based in Brighouse, GB· patent location history
1986–2000Based in West Yorkshire, GB· patent location history
1999Patents assigned to CIBA SPECIALTY CHAMICALS WATER (1)· patent assignee history
2000Patents assigned to CIBA SPEC CHEM WATER TREAT LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ALLIED COLLOIDS LTD | 5 | 1981–1997 |
| CIBA SPEC CHEM WATER TREAT LTD | 1 | 2000 |
| CIBA SPECIALTY CHAMICALS WATER | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| West Yorkshire, GB | 5 | 1986–2000 |
| Brighouse, GB | 2 | 1981 |