William E. Fristad

Person

Santa Rosa, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for removing mercury from soil
- Patent number 5,785,935
- Issue date Jul 28, 1998
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Process for removing heavy metals from soil
- Patent number 5,744,107
- Issue date Apr 28, 1998
- Henkel Corporation
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Process for removing lead from sandblasting wastes containing paint...
- Patent number 5,660,806
- Issue date Aug 26, 1997
- Henkel Corporation
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method and apparatus for removing metal contamination from soil
- Patent number 5,607,060
- Issue date Mar 4, 1997
- Henkel Corporation
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Process for removing heavy metals from soil
- Patent number 5,505,925
- Issue date Apr 9, 1996
- Cognis, Inc.
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Process for removing heavy metals from paint chips
- Patent number 5,494,649
- Issue date Feb 27, 1996
- COGNIS, Inc.
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method and apparatus for removing metal contamination from soil
- Patent number 5,466,426
- Issue date Nov 14, 1995
- COGNIS, Inc.
- William E. Fristad
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Cyclic oligoiminoethers
- Patent number 5,196,544
- Issue date Mar 23, 1993
- Henkel Kommanditgesellschaft auf Aktien
- Brigitte Hase
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manganese compound catalyzed oligomerization reactions and products...
- Patent number 5,106,541
- Issue date Apr 21, 1992
- Henkel Research Corporation
- William E. Fristad
- C07 - ORGANIC CHEMISTRY

William E. Fristad

Person

Patents Grantslast 30 patents

Process for removing mercury from soil

Process for removing heavy metals from soil

Process for removing lead from sandblasting wastes containing paint...

Method and apparatus for removing metal contamination from soil

Process for removing heavy metals from soil

Process for removing heavy metals from paint chips

Method and apparatus for removing metal contamination from soil

Cyclic oligoiminoethers

Manganese compound catalyzed oligomerization reactions and products...