http://base.uipv.org/searchBul/ - not practical due to post-based approach.  Might be possible to generate a list, but the IDs are inconsistent
http://base.uipv.org/searchINV/ - not practical due to post-based approach.  Might be possible to generate a list, but the IDs are inconsistent

https://base.uipv.org/searchEURO2012/ - I think this one can be saved (not linked properly from main site)

https://base.uipv.org/searchInvStat/ - not practical.  gives e.g. https://base.uipv.org/searchInvStat/showclaimdetails.php?IdClaim=146337&resId=1 but I don't think we can easily brute-force IDs
https://base.uipv.org/searchInvRevoke/search.php?action=viewpatents - not practical due to post
https://base.uipv.org/mpk2009/index.html?level=c&version=2 - weird and frame-based, but uses query parameters so it's possible to generate a list at least
https://base.uipv.org/vienna/ - probably savable, but very weird with embedding PDFs.  Might generate a large number of results due to combining query parameters and anchors on e.g. https://base.uipv.org/vienna/viewvienna.php?id=5&cid=5&lang=ukr&gid=0501#0501 but it still should be fine.  It _does_ use post to switch between versions (VCL-8/VCL-7/VCL-6), e.g. https://base.uipv.org/vienna/files//v8/preface.pdf vs https://base.uipv.org/vienna/files//v7/preface.pdf, but I think we can build a list of all the URLs that worked for the latest version and retry them for older ones?
https://base.uipv.org/locarno/ - post-based, probably not practical.  Has PDFs, e.g. https://base.uipv.org/locarno/pdf/Cl-ua-14.pdf

i.e. https://base.uipv.org/searchEURO2012/ and https://base.uipv.org/vienna/ definitely can be done, others might be doable too