Du Pont-Howson Limited
4Patents
0Active
4Granted
24Portfolio score
Filing activity: Sep 12, 1990 → Feb 5, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5130228A | Radiation sensitive compositions | Physics | 8 | Expired |
| US5278030A | Developer solution comprising ethyl hexyl sulphate, a surfactant, an alkaline material and having a pH of not less than 12 | Physics | 4 | Expired |
| US5162193A | Radiation sensitive devices | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5162431A | Polymeric compounds having urethane and sulfonate groups | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.