proprietorship, copyright, patented, trademarked, branded, proprietorial, proprietarial, proprietory, possessive, proprietive, more...

open source, non-proprietary, public domain

freeware, shareware, public domain, open source, more...

first, new, most, own, small, absolute, numerous, large, less, private, feudal

hard to copy,   brand specific,   solely belonging to,   non free,   vendor lock-in