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:
May. 01, 2001
Filed:
Feb. 17, 1998
Applicant:
Inventors:
Andrew Hickson, West Wellow, GB;
James Gordon Wilkinson, Southampton, GB;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/730 ;
U.S. Cl.
CPC ...
G06F 1/730 ;
Abstract
Access to groups of related items which are accessible by multiple processes in a computer system is controlled, in response to determining that an individually accessed data item is part of a group, by marking the whole group as locked and returning an unlocking key to the process accessing the original data item. Further access to any items of the group by a process is prevented except on provision of the key. The invention is particularly applicable to messages in a message queuing system which are logically grouped and yet may be individually destructively retrieved.