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.

Date of Patent:
May. 31, 1988

Filed:

Feb. 04, 1986
Applicant:
Inventors:

Masakazu Iwai, Fujiidera, JP;

Kazumasa Yokoyama, Toyonaka, JP;

Tsunekazu Fukushima, Kobe, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; C07G / ;
U.S. Cl.
CPC ...
514-2 ; 530388 ; 514925 ; 514926 ; 514927 ;
Abstract

Fab or Fc fragment of human IgG which is obtainable by enzymatic digestion of the human IgG is reduced by a reducing agent to sever an interchain of disulfide bonds therein and then blocked the SH radicals formed with alkyl group which may contain other group. The resulting alkylated Fab and Fc fragments display therapeutic and prophylactic action for gastrointestinal ulcers by the oral or parenteral administration.


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