Assignee
PILKINGTON BROTHERS LTD
70 granted patents·1,374 citations·filing 1973–1987
Top patents by PatentIndex Score
70 records- 0191US3954490ACoating compositions for glass fibresPILKINGTON BROTHERS LTD·Filed 1974·Granted May 4, 1976·56 cites·38 claims
- 0290US4036654AAlkali-resistant glass compositionsPILKINGTON BROTHERS LTD·Filed 1976·Granted Jul 19, 1977·62 cites·5 claims
- 0389US4345037AAlkali resistant glass fibres for cement reinforcementPILKINGTON BROTHERS LTD·Filed 1981·Granted Aug 17, 1982·51 cites·15 claims
- 0487US4140258AMethods and apparatus for separating glass sheets into separate sheet portionsPILKINGTON BROTHERS LTD·Filed 1976·Granted Feb 20, 1979·36 cites·16 claims
- 0586US4188444AMethod of coating glass and glass coated therebyPILKINGTON BROTHERS LTD·Filed 1978·Granted Feb 12, 1980·80 cites·19 claims
- 0686US4019887AMethod for coating glassPILKINGTON BROTHERS LTD·Filed 1975·Granted Apr 26, 1977·48 cites·10 claims
- 0786US3971646AStirring of molten glassPILKINGTON BROTHERS LTD·Filed 1975·Granted Jul 27, 1976·33 cites·12 claims
- 0885US4749397AMethod of coating glassPILKINGTON BROTHERS LTD·Filed 1987·Granted Jun 7, 1988·46 cites·21 claims
- 0985US4198226AMethod and apparatus for controlling a fluidized bedPILKINGTON BROTHERS LTD·Filed 1978·Granted Apr 15, 1980·23 cites·22 claims
- 1085US4194898AMethod and apparatus for treatment of articles in a fluidized bedPILKINGTON BROTHERS LTD·Filed 1978·Granted Mar 25, 1980·25 cites·14 claims
- 1185US4011070AMethod and apparatus for regulating molten glass flow into a conditioning chamberPILKINGTON BROTHERS LTD·Filed 1975·Granted Mar 8, 1977·39 cites·24 claims
- 1283US3961927AApparatus and method for moulding glass objectsPILKINGTON BROTHERS LTD·Filed 1975·Granted Jun 8, 1976·54 cites·50 claims
- 1382US4372774AThermal treatment of glassPILKINGTON BROTHERS LTD·Filed 1981·Granted Feb 8, 1983·28 cites·30 claims
- 1480US4102693APhotochromic boro-silicate glassPILKINGTON BROTHERS LTD·Filed 1977·Granted Jul 25, 1978·32 cites·4 claims
- 1579US4046546AMethod and apparatus for refining glass in a melting tankPILKINGTON BROTHERS LTD·Filed 1976·Granted Sep 6, 1977·28 cites·23 claims
- 1678US4014705AGlass compositionsPILKINGTON BROTHERS LTD·Filed 1974·Granted Mar 29, 1977·20 cites·5 claims
- 1778US3951671AOphthalmic glass compositionsPILKINGTON BROTHERS LTD·Filed 1974·Granted Apr 20, 1976·20 cites·3 claims
- 1877US4299018ARoll for use under high or low temperature conditionsPILKINGTON BROTHERS LTD·Filed 1979·Granted Nov 10, 1981·35 cites·3 claims
- 1976US4400193AMethod of thermal toughening of glass in a fluidized bedPILKINGTON BROTHERS LTD·Filed 1979·Granted Aug 23, 1983·21 cites·5 claims
- 2076US4144684AGlazing unitPILKINGTON BROTHERS LTD·Filed 1976·Granted Mar 20, 1979·30 cites·16 claims
- 2174US4011359AInterleaving materials comprising particulate separator and acidic materials, for separating glass sheetsPILKINGTON BROTHERS LTD·Filed 1975·Granted Mar 8, 1977·44 cites·25 claims
- 2272US4544395ACationic surface coating of flat glassPILKINGTON BROTHERS LTD·Filed 1981·Granted Oct 1, 1985·37 cites·23 claims
- 2372US4214863ARotary pan pelletizersPILKINGTON BROTHERS LTD·Filed 1979·Granted Jul 29, 1980·20 cites·5 claims
- 2472US4137086AGlass compositions for use in curable compositionsPILKINGTON BROTHERS LTD·Filed 1977·Granted Jan 30, 1979·25 cites·19 claims
- 2572US3961930AManufacture of flat glassPILKINGTON BROTHERS LTD·Filed 1974·Granted Jun 8, 1976·19 cites·22 claims
- 2670US4076159ABreaking flat glass into culletPILKINGTON BROTHERS LTD·Filed 1976·Granted Feb 28, 1978·25 cites·12 claims
- 2770US3985530AProduction of glass fibersPILKINGTON BROTHERS LTD·Filed 1975·Granted Oct 12, 1976·20 cites·12 claims
- 2866US4220066AApparatus for cutting or scoring sheet materialPILKINGTON BROTHERS LTD·Filed 1978·Granted Sep 2, 1980·14 cites·12 claims
- 2966US4217125AMethod and apparatus for manufacturing flat glass on a molten metal bathPILKINGTON BROTHERS LTD·Filed 1974·Granted Aug 12, 1980·13 cites·21 claims
- 3066US4070936AApparatus for cutting or scoring sheet materialPILKINGTON BROTHERS LTD·Filed 1976·Granted Jan 31, 1978·19 cites·12 claims
- 3163US4113458AThermal treatment of glass in a fluidized bedPILKINGTON BROTHERS LTD·Filed 1977·Granted Sep 12, 1978·12 cites·16 claims
- 3262US4330628AAlkali-resistant glass fibresPILKINGTON BROTHERS LTD·Filed 1980·Granted May 18, 1982·26 cites·13 claims
- 3358US3973942AMethod of moulding and tempering glass articlesPILKINGTON BROTHERS LTD·Filed 1975·Granted Aug 10, 1976·18 cites·18 claims
- 3457US3989497AGlass meltingPILKINGTON BROTHERS LTD·Filed 1975·Granted Nov 2, 1976·12 cites·11 claims
- 3556US4173486ACoating of glass fibresPILKINGTON BROTHERS LTD·Filed 1977·Granted Nov 6, 1979·14 cites·22 claims
- 3655US4124733ALaminated glass unitsPILKINGTON BROTHERS LTD·Filed 1977·Granted Nov 7, 1978·28 cites·2 claims
- 3754US3958969AManufacture of glassPILKINGTON BROTHERS LTD·Filed 1974·Granted May 25, 1976·8 cites·25 claims
- 3853US4406105AStructural glass assembliesPILKINGTON BROTHERS LTD·Filed 1980·Granted Sep 27, 1983·22 cites·8 claims
- 3953US4088471AApparatus for coating glassPILKINGTON BROTHERS LTD·Filed 1976·Granted May 9, 1978·14 cites·6 claims
- 4052US4316565ASheet transfer apparatusPILKINGTON BROTHERS LTD·Filed 1979·Granted Feb 23, 1982·14 cites·15 claims
- 4151US4123287AGlass fibres for reinforcement of cement productsPILKINGTON BROTHERS LTD·Filed 1976·Granted Oct 31, 1978·13 cites·8 claims
- 4251US4001476AManufacture of float glassPILKINGTON BROTHERS LTD·Filed 1974·Granted Jan 4, 1977·7 cites·36 claims
- 4351US3997315AGlass meltingPILKINGTON BROTHERS LTD·Filed 1975·Granted Dec 14, 1976·9 cites·2 claims
- 4449US4052186AMethod and apparatus for conditioning molten glassPILKINGTON BROTHERS LTD·Filed 1976·Granted Oct 4, 1977·8 cites·27 claims
- 4548US3938976AProcesses and apparatus for feeding material to a glass melting tankPILKINGTON BROTHERS LTD·Filed 1973·Granted Feb 17, 1976·7 cites·12 claims
- 4647US4092174APhotochromic glassesPILKINGTON BROTHERS LTD·Filed 1977·Granted May 30, 1978·11 cites·11 claims
- 4744US4332605AThermally treating articles with particulate material and apparatus thereforPILKINGTON BROTHERS LTD·Filed 1980·Granted Jun 1, 1982·7 cites·17 claims
- 4844US4086073AElectrolytic ion migration into glassPILKINGTON BROTHERS LTD·Filed 1977·Granted Apr 25, 1978·11 cites·20 claims
- 4944US4082528AGlass melting tank with temperature control and method of meltingPILKINGTON BROTHERS LTD·Filed 1977·Granted Apr 4, 1978·9 cites·14 claims
- 5041US4343116AProcesses for finishing glass surfacesPILKINGTON BROTHERS LTD·Filed 1980·Granted Aug 10, 1982·12 cites·9 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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