BinPatch (Kay Hayen)
BinPatch (also BinPatch Classic, BinPatch Professional) is a file patching application developed by Kay Hayen Software.
Its native "plain patch" file format uses the .UTP file extension. Some versions also support an "executable patch" (.EXE) format.
UTP files are observed to start with bytes
43 84 7f 3e, though more research may be needed to confirm this.