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Inventor

COPA WILLIAM M

US14 patents
⚠️ This page may combine multiple inventors who share the name “COPA WILLIAM M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZIMPRO ENVIRONMENTAL INC

4 patents
US5240619AAug 31, 1993

Two-stage subcritical-supercritical wet oxidation

ZIMPRO ENVIRONMENTAL INC107 citations95
US5641413AJun 24, 1997

Removal of nitrogen from wastewaters

ZIMPRO ENVIRONMENTAL INC69 citations94
US5298174AMar 29, 1994

Low temperature caustic sulfide wet oxidation process

ZIMPRO ENVIRONMENTAL INC48 citations90
US5082571AJan 21, 1992

Caustic sulfide wet oxidation process

ZIMPRO ENVIRONMENTAL INC51 citations90

ZIMPRO PASSAVANT INC

3 patents
US4919815AApr 24, 1990

Two-stage anaerobic/aerobic treatment process

ZIMPRO PASSAVANT INC143 citations96
US4810386AMar 7, 1989

Two-stage wastewater treatment

ZIMPRO PASSAVANT INC58 citations95
US4897196AJan 30, 1990

Two-stage batch wastewater treatment

ZIMPRO PASSAVANT INC43 citations91

STERLING DRUG INC

2 patents
US4265747AMay 5, 1981

Disinfection and purification of fluids using focused laser radiation

STERLING DRUG INC139 citations95
US4182648AJan 8, 1980

Oxygen pulping process

STERLING DRUG INC5 citations61

ZIMPRO INC

1 patent
US4626354ADec 2, 1986

Method for anaerobic treatment of high strength liquors

ZIMPRO INC78 citations91

UNITED STATES FILTER CORP

1 patent
US6110385AAug 29, 2000

System and method for removing volatile compounds from a waste stream

UNITED STATES FILTER CORP36 citations90

FMC PROPERTIES LLC

1 patent
US6444130B1Sep 3, 2002

Process for rendering waste from electric furnace production of phosphorus non-hazardous

FMC PROPERTIES LLC23 citations86

ZIMPRO PASSAVANT

1 patent
US4749492AJun 7, 1988

Process for recovering regenerated adsorbent particles and separating ash therefrom

ZIMPRO PASSAVANT51 citations85

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