The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1988
Filed:
Jun. 23, 1987
Applicant:
Inventors:
Richard A Harte, Redwood City, CA (US);
David B Wilson, Sunnyvale, CA (US);
Assignee:
Environmental Concerns, Inc., Belmont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01J / ;
U.S. Cl.
CPC ...
2105021 ; 210504 ; 210688 ; 210912 ; 502417 ; 502516 ;
Abstract
A filter bed material for the removal of heavy metal ions from water and process for the manufacture thereof. The bed material includes a charcoal bed having a chelating agent adsorbed thereto utilizing a polymer to aid in the adsorption of the chelating compound.