DW

David Whitehead

CH Colormatrix Holdings: 3 patents #11 of 44Top 25%
ML Massey-Ferguson-Perkins Limited: 1 patents #3 of 5Top 60%
PL Perkins Engines Company Limited: 1 patents #78 of 209Top 40%
📍 Langrigg, GB: #5 of 7 inventorsTop 75%
Overall (All Time): #910,691 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12311586 Apparatus and method for dosing a fluid formulation into a polymeric material Brian Jones, Harry Baker, Mark Dix-Baker 2025-05-27
11618972 Method of and apparatus for injecting a liquid formulation into a molten polymer Brian Jones, Ian Campbell 2023-04-04
11065798 Apparatus and method for injecting a fluid formulation into a melted polymeric material Brian Jones, Ian Campbell, Harry Baker 2021-07-20
4502452 Valve 1985-03-05
4479463 Engine sump Laurence D. Curley, Rodney A. Bedborough 1984-10-30