Assignee
PHILADELPHIA QUARTZ CO
14 granted patents·291 citations·filing 1971–1976
Top patents by PatentIndex Score
14 records- 0197US3960583AMethod of preparing modified hollow, largely spherical particles by spray dryingPHILADELPHIA QUARTZ CO·Filed 1974·Granted Jun 1, 1976·155 cites·23 claims
- 0283US3960532APreparing alkali metal silicate glass with bubblesPHILADELPHIA QUARTZ CO·Filed 1975·Granted Jun 1, 1976·34 cites·8 claims
- 0381US3931036ACompacted alkali metal silicatePHILADELPHIA QUARTZ CO·Filed 1974·Granted Jan 6, 1976·28 cites·10 claims
- 0464US3954659AMethod of forming stable dispersions of aluminaPHILADELPHIA QUARTZ CO·Filed 1974·Granted May 4, 1976·11 cites·3 claims
- 0562US3935023AAlumina dispersionsPHILADELPHIA QUARTZ CO·Filed 1974·Granted Jan 27, 1976·10 cites·19 claims
- 0655US4042313AMethod of imparting color to firesPHILADELPHIA QUARTZ CO·Filed 1976·Granted Aug 16, 1977·12 cites·4 claims
- 0752US3966893APrecipitating α alumina monohydratePHILADELPHIA QUARTZ CO·Filed 1974·Granted Jun 29, 1976·6 cites·12 claims
- 0848US3961022ASilicate dissolvingPHILADELPHIA QUARTZ CO·Filed 1974·Granted Jun 1, 1976·9 cites·4 claims
- 0947US4008173ADefoamer compositionPHILADELPHIA QUARTZ CO·Filed 1975·Granted Feb 15, 1977·10 cites·9 claims
- 1045US4029514AMethod of precipitating microfine silica using phosphatePHILADELPHIA QUARTZ CO·Filed 1975·Granted Jun 14, 1977·5 cites·6 claims
- 1141US3941723ACrystallized alkali metal silicate with sequestering agentsPHILADELPHIA QUARTZ CO·Filed 1971·Granted Mar 2, 1976·6 cites·5 claims
- 1226US3967972ASoluble silicate disksPHILADELPHIA QUARTZ CO·Filed 1975·Granted Jul 6, 1976·1 cites·8 claims
- 1326US3959274APreparation of alkali metal and quaternary nitrogen double salts of silicic acidPHILADELPHIA QUARTZ CO·Filed 1973·Granted May 25, 1976·0 cites·4 claims
- 1420US4018622AFluxing agent for removing inorganic deposits from smelters and furnacesPHILADELPHIA QUARTZ CO·Filed 1973·Granted Apr 19, 1977·4 cites·10 claims
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