Spector; Marshall L.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Spector; Marshall L..The latest application filed is for "inhibition of algae in swimming pools".

Company Profile

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Spector; Marshall L. - Emmaus PA
Spector; Marshall L. - Allentown PA
Spector; Marshall L. - Belle Mead NJ
Spector; Marshall L. - Bellemead NJ

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Inhibition of algae in swimming pools Grant 6,224,779 - Spector May 1, 2	2001-05-01
Biological process for enhanced removal of ammonia, nitrite, nitrate, and phosphate from wastewater Grant 5,182,021 - Spector January 26, 1	1993-01-26
Biological wastewater treating system Grant 4,731,185 - Chen , et al. March 15, 1	1988-03-15
Production of non-bulking activated sludge Grant RE32,429 - Spector June 2, 1	1987-06-02
Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants Grant 4,650,585 - Hong , et al. March 17, 1	1987-03-17
Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant Grant 4,552,663 - Spector , et al. November 12, 1	1985-11-12
Removal of phosphates and BOD from wastewaters Grant 4,488,968 - Hong , et al. December 18, 1	1984-12-18
Control of activated sludge wastewater treating process for enhanced phosphorous removal Grant 4,271,026 - Chen , et al. June 2, 1	1981-06-02
High nitrogen and phosphorous content biomass produced by treatment of a BOD-containing material Grant 4,162,153 - Spector * July 24, 1	1979-07-24
Production of non-bulking activated sludge Grant 4,056,465 - Spector November 1, 1	1977-11-01
Removal of BOD and nitrogenous pollutants from wastewaters Grant 3,994,802 - Casey , et al. November 30, 1	1976-11-30
Removal Of Sulfur Oxides From Stack Gas Grant 3,843,789 - Spector , et al. October 22, 1	1974-10-22
Combustion Of High-sulfur Coal In A Fluidized Bed Reactor Grant 3,625,164 - Spector December 7, 1	1971-12-07

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