Patrol for Linux 1.2 looks to be the current release: Home - Documentation for BMC PATROL for Linux 1.2 - BMC Documentation
When you download it you get a compressed file which shold have the KM's you want in it, I believe the solution is nukhux.
There are separate KMs for Linux, AIX and Solaris...but not for HP-UX. My guess is bmc is working on developing a separate KM just for HP-UX.
For now, UNIX KM 9.13 is the only available option.