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Inventor

LEHMANN RICHARD W

US13 patents
⚠️ This page may combine multiple inventors who share the name “LEHMANN RICHARD W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZIMPRO ENVIRONMENTAL INC

6 patents
US5240619AAug 31, 1993

Two-stage subcritical-supercritical wet oxidation

ZIMPRO ENVIRONMENTAL INC107 citations95
US5183577AFeb 2, 1993

Process for treatment of wastewater containing inorganic ammonium salts

ZIMPRO ENVIRONMENTAL INC97 citations95
US5651897AJul 29, 1997

Wet oxidation of high strength liquors with high solids content

ZIMPRO ENVIRONMENTAL INC23 citations92
US5389264AFeb 14, 1995

Hydraulic energy dissipator for wet oxidation process

ZIMPRO ENVIRONMENTAL INC29 citations92
US5262060ANov 16, 1993

Wet oxidation of ammonium salt containing liquors

ZIMPRO ENVIRONMENTAL INC20 citations81
US5234607AAug 10, 1993

Wet oxidation system startup process

ZIMPRO ENVIRONMENTAL INC17 citations71

STERLING DRUG INC

2 patents
US4461743AJul 24, 1984

Oxygen injection nozzle for wet oxidation reactors

STERLING DRUG INC21 citations81
US4395339AJul 26, 1983

Method of operating pure oxygen wet oxidation systems

STERLING DRUG INC7 citations73

STANDARD OIL CO OHIO

1 patent
US5192453AMar 9, 1993

Wet oxidation process for ACN waste streams

STANDARD OIL CO OHIO55 citations94

SIEMENS ENERGY INC

1 patent
US9630867B2Apr 25, 2017

Treatment of spent caustic waste

SIEMENS ENERGY INC6 citations83

UNITED STATES FILTER CORP

1 patent
US6190564B1Feb 20, 2001

Two-stage separation process

UNITED STATES FILTER CORP17 citations81

KUMFER BRYAN J

1 patent
US8734648B2May 27, 2014

Treatment of spent caustic waste

KUMFER BRYAN J6 citations78

SIEMENS WATER TECH HOLDG CORP

1 patent
US7850822B2Dec 14, 2010

System and method of wet oxidation of a viscose process stream

SIEMENS WATER TECH HOLDG CORP2 citations58