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:
Oct. 25, 1988
Filed:
Oct. 02, 1987
Japan Chemical Research Co., Ltd., Kobe, JP;
Abstract
Two components, trypsin and kallidinogenase, in human urine are concentrated simultaneously by allowing human urine at neutral pH, collecting bubbles thus formed to obtain the concentrate of the two components, adjusting the concentrate to weak acidity, contacting the acidified concentrate with chitosan to allow the two components to be adsorbed onto chitosan, eluting the components from the adsorbent with aqueous ammonia solution, and neutralizing and heating the eluate at about 60.degree. C. for about 10 hours to make the eluate virus-free, followed by separating the components from the eluate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile