Donald J. Thiel

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Waukesha, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Sludge withdrawal mechanism for wasting and returning settled sludg...
- Patent number 11,883,764
- Issue date Jan 30, 2024
- Evoqua Water Technologies LLC
- Donald J. Thiel
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Orbal wastewater treatment process
- Patent number 4,975,197
- Issue date Dec 4, 1990
- Envirex Inc.
- John W. Wittmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Activated sludge wastewater treatment process
- Patent number 4,961,854
- Issue date Oct 9, 1990
- Envirex Inc.
- John W. Wittmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Sludge Withdrawal Mechanism for Wasting and Returning Settled Sludg...
- Publication number 20240109006
- Publication date Apr 4, 2024
- Evoqua Water Technologies LLC
- DONALD J. THIEL
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
SLUDGE WITHDRAWAL MECHANISM FOR WASTING AND RETURNING SETTLED SLUDG...
- Publication number 20230191288
- Publication date Jun 22, 2023
- Evoqua Water Technologies LLC
- DONALD J. THIEL
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL