However, we all need to keep in mind that Nevod operates on words, not characters, and Nevod targets large rule decks (1000-100000 patterns). So, we don't compete in the field of individual pattern matching or streaming matching (to some extent, goals of Hyperscan and Nevod are different). In other words, a lot of things depend on target goals, which usually are reflected in the kind of patterns and in their number.
Regarding patent. Sorry, for legal reasons I can't expose details at the moment.
Thank you for your valuable comments.