During a discussion on Cocoa memory management on Cocoa-Dev, Bill Cheeseman posted the patent numbers for the autorelease mechanism. Here are some links, all called “Transparent local and distributed memory management” :
5,687,370, 6,026,415, and 6,304,884.
March 26, 2008
Autorelease Pool Patents
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Borkware Miniblog 
3rd link is borked.
Comment by Jonathan Wight — March 26, 2008 @ 10:01 am
huh. works for me. I blame MarsEdit for everything, including my receding hairline and dandelions. How’s it not working?
Comment by Mark Dalrymple — March 26, 2008 @ 9:28 pm
Broken for me too. I get:
“Not Found
The requested URL /patents?vid=USPAT6304884 was not found on this server.”
Comment by Edward — April 6, 2008 @ 5:34 am
How odd, it’s broken for me now, and that patent # doesn’t come up with anything now. Replaced that link with a differently formatted one.
Comment by Mark Dalrymple — April 6, 2008 @ 9:22 am