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:
Jun. 12, 1979
Filed:
Nov. 30, 1977
Richard C Chang, Raleigh, NC (US);
Robert R Ward, Cary, NC (US);
Monsanto Company, St. Louis, MO (US);
Abstract
The selectivities of fluid separations of membranes having pores, in which the material of the membranes significantly effects the fluid separations, can be enhanced by the storage of the membranes in water. Suitable materials of the membranes for improvement in accordance with this invention are those which are not unduly susceptible to biodegradation. The membranes for improvement in accordance with this invention preferably have structures which are not unduly affected by drying and thus maintain beneficial mechanical and fluid separation properties after drying.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile