Richard W. Lehmann

Person

Birnamwood, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Treatment of spent caustic waste
- Patent number 9,630,867
- Issue date Apr 25, 2017
- SIEMENS ENERGY, INC.
- Bryan J. Kumfer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Treatment of spent caustic waste
- Patent number 8,734,648
- Issue date May 27, 2014
- SIEMENS ENERGY, INC.
- Bryan J. Kumfer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
System and method of wet oxidation of a viscose process stream
- Patent number 7,850,822
- Issue date Dec 14, 2010
- Siemens Water Technologies Holding Corp.
- Chad L. Felch
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Two-stage separation process
- Patent number 6,190,564
- Issue date Feb 20, 2001
- United States Filter Corporation
- Richard W. Lehmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Wet oxidation of high strength liquors with high solids content
- Patent number 5,651,897
- Issue date Jul 29, 1997
- Richard W. Lehmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Hydraulic energy dissipator for wet oxidation process
- Patent number 5,389,264
- Issue date Feb 14, 1995
- Zimpro Environmental Inc.
- Richard W. Lehmann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Wet oxidation of ammonium salt containing liquors
- Patent number 5,262,060
- Issue date Nov 16, 1993
- Zimpro Passavant Environmental Systems, Inc.
- Richard W. Lehmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Two-stage subcritical-supercritical wet oxidation
- Patent number 5,240,619
- Issue date Aug 31, 1993
- Zimpro Passavant Environmental Systems, Inc.
- William M. Copa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Wet oxidation system startup process
- Patent number 5,234,607
- Issue date Aug 10, 1993
- Zimpro Passavant Environment Systems Inc.
- Bruce L. Brandenburg
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Wet oxidation process for ACN waste streams
- Patent number 5,192,453
- Issue date Mar 9, 1993
- The Standard Oil Company
- Kenneth P. Keckler
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for treatment of wastewater containing inorganic ammonium s...
- Patent number 5,183,577
- Issue date Feb 2, 1993
- Zimpro Passavant Environmental Systems, Inc.
- Richard W. Lehmann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Oxygen injection nozzle for wet oxidation reactors
- Patent number 4,461,743
- Issue date Jul 24, 1984
- Sterling Drug Inc.
- Ajit K. Chowdhury
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of operating pure oxygen wet oxidation systems
- Patent number 4,395,339
- Issue date Jul 26, 1983
- Sterling Drug Inc.
- Ajit K. Chowdhury
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
TREATMENT OF SPENT CAUSTIC WASTE
- Publication number 20140251924
- Publication date Sep 11, 2014
- SIEMENS ENERGY, INC.
- Bryan J. Kumfer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
TREATMENT OF SPENT CAUSTIC WASTE
- Publication number 20100252500
- Publication date Oct 7, 2010
- Bryan J. Kumfer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Wet oxidation process and system
- Publication number 20050171390
- Publication date Aug 4, 2005
- USFilter Corporation
- Chad L. Felch
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
System and method of wet oxidation of a viscose process stream
- Publication number 20050147554
- Publication date Jul 7, 2005
- USFilter Corporation
- Chad L. Felch
- C01 - INORGANIC CHEMISTRY

Richard W. Lehmann

Person

Patents Grantslast 30 patents

Treatment of spent caustic waste

Treatment of spent caustic waste

System and method of wet oxidation of a viscose process stream

Two-stage separation process

Wet oxidation of high strength liquors with high solids content

Hydraulic energy dissipator for wet oxidation process

Wet oxidation of ammonium salt containing liquors

Two-stage subcritical-supercritical wet oxidation

Wet oxidation system startup process

Wet oxidation process for ACN waste streams

Process for treatment of wastewater containing inorganic ammonium s...

Oxygen injection nozzle for wet oxidation reactors

Method of operating pure oxygen wet oxidation systems

Patents Applicationslast 30 patents

TREATMENT OF SPENT CAUSTIC WASTE

TREATMENT OF SPENT CAUSTIC WASTE

Wet oxidation process and system

System and method of wet oxidation of a viscose process stream