Inventor
SPECTOR MARSHALL L
US12 patents
⚠️ This page may combine multiple inventors who share the name “SPECTOR MARSHALL L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AIR PROD & CHEM
9 patentsUS3994802ANov 30, 1976
Removal of BOD and nitrogenous pollutants from wastewaters
AIR PROD & CHEM95 citations96
US4271026AJun 2, 1981
Control of activated sludge wastewater treating process for enhanced phosphorous removal
AIR PROD & CHEM145 citations95
US4162153AJul 24, 1979
High nitrogen and phosphorous content biomass produced by treatment of a BOD-containing material
AIR PROD & CHEM106 citations95
US4056465ANov 1, 1977
Production of non-bulking activated sludge
AIR PROD & CHEM124 citations95
US4488968ADec 18, 1984
Removal of phosphates and BOD from wastewaters
AIR PROD & CHEM48 citations92
US4731185AMar 15, 1988
Biological wastewater treating system
AIR PROD & CHEM44 citations91
US4650585AMar 17, 1987
Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants
AIR PROD & CHEM21 citations81
US4552663ANov 12, 1985
Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant
AIR PROD & CHEM21 citations81
US4556491ADec 3, 1985
Avoidance of rising sludge in biological wastewater treatment clarifiers
AIR PROD & CHEM10 citations68