Cannot locate patches via MOS that are listed by "opatch lsinventory" command
I am trying to identify all patches applied to a 10.2.0.5 database so I can reapply them on the target end of a cross-platform migration. When I run "opatch lsinventory" the usual report is produced and I'm able to download the first 2 patches from MOS to my target machine. However, the 3rd, 4th, 8th and a few other patches are not retrievable. For example, one of the listed patches is 14418558 but a search on that number produces:
"No Patch name or number found for "14418558". Click Edit Search to search by Bug Number"
I dutifully search on the associated bug number which is 9963497 and am presented with a long list of assorted patches that contain that bug fix. Fair enough, but which one do I need to apply? I'm told there have been no manual records kept as to which patches were applied.