Keeling & Walker, Limited
4Patents
2Active
4Granted
34Portfolio score
Filing activity: Jun 4, 1976 → Sep 18, 2019
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4047970A | Production of calcined ceramic pigments | Chemistry; Metallurgy | 11 | Expired |
| US4053320A | Production of refractory articles | Chemistry; Metallurgy | 4 | Expired |
| US10259255B2 | Security printing | Electricity | 0 | Active |
| US11292914B2 | Compositions and methods and uses relating thereto | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.