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Emmaus, PA, US
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last 30 patents
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Patent Grant
Method for minimizing diurnal swing in phosphorus content of efflue...
Patent number
4,650,585
Issue date
Mar 17, 1987
Air Products and Chemicals, Inc.
Sun-Nan Hong
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Avoidance of rising sludge in biological wastewater treatment clari...
Patent number
4,556,491
Issue date
Dec 3, 1985
Air Products and Chemicals, Inc.
Marshall L. Spector
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for the removal of ammoniacal nitrogen in the BOD sorption...
Patent number
4,552,663
Issue date
Nov 12, 1985
Air Products and Chemicals, Inc.
Marshall L. Spector
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Treatment of wastewater containing phosphorus compounds
Patent number
4,488,967
Issue date
Dec 18, 1984
Air Products and Chemicals, Inc.
Charles S. Block
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Removal of phosphates and BOD from wastewaters
Patent number
4,488,968
Issue date
Dec 18, 1984
Air Products and Chemicals, Inc.
Sun-Nan Hong
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Activated sludge system with staggered partition basin
Patent number
4,087,361
Issue date
May 2, 1978
Air Products and Chemicals, Inc.
Charles S. Block
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Activated sludge system with staggered partition basin
Patent number
4,081,368
Issue date
Mar 28, 1978
Air Products and Chemicals, Inc.
Charles S. Block
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE