Pilkington Brothers Limited
🏢 View company profile →70Patents
0Active
70Granted
37Portfolio score
Filing activity: Dec 27, 1973 → Jul 21, 1981
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3954490A | Coating compositions for glass fibres | Chemistry; Metallurgy | 54 | Expired |
| US4188444A | Method of coating glass and glass coated thereby | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4036654A | Alkali-resistant glass compositions | Chemistry; Metallurgy | 42 | Expired |
| US4019887A | Method for coating glass | Chemistry; Metallurgy | 32 | Expired |
| US4345037A | Alkali resistant glass fibres for cement reinforcement | Chemistry; Metallurgy | 29 | Expired |
| US4144684A | Glazing unit | Chemistry; Metallurgy | 27 | Expired |
| US3961927A | Apparatus and method for moulding glass objects | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4372774A | Thermal treatment of glass | Chemistry; Metallurgy | 25 | Expired |
| US4102693A | Photochromic boro-silicate glass | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4299018A | Roll for use under high or low temperature conditions | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4011359A | Interleaving materials comprising particulate separator and acidic materials, for separating glass sheets | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4124733A | Laminated glass units | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4400193A | Method of thermal toughening of glass in a fluidized bed | Chemistry; Metallurgy | 21 | Expired |
| US4194898A | Method and apparatus for treatment of articles in a fluidized bed | Chemistry; Metallurgy | 21 | Expired |
| US4198226A | Method and apparatus for controlling a fluidized bed | Chemistry; Metallurgy | 20 | Expired |
| US4140258A | Methods and apparatus for separating glass sheets into separate sheet portions | Emerging Cross-Sectional Technologies | 19 | Expired |
| US3971646A | Stirring of molten glass | Chemistry; Metallurgy | 19 | Expired |
| US4544395A | Cationic surface coating of flat glass | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4011070A | Method and apparatus for regulating molten glass flow into a conditioning chamber | Chemistry; Metallurgy | 17 | Expired |
| US4330628A | Alkali-resistant glass fibres | Fixed Constructions | 17 | Expired |
| US4046546A | Method and apparatus for refining glass in a melting tank | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4076159A | Breaking flat glass into cullet | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4137086A | Glass compositions for use in curable compositions | Chemistry; Metallurgy | 15 | Expired |
| US4014705A | Glass compositions | Chemistry; Metallurgy | 13 | Expired |
| US4173486A | Coating of glass fibres | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.