Not exhaustive, and not every kind exists in every country. You do not need to work out which of these you have. It is here so that “no” is an answer you give on purpose rather than by accident.
Things you register
You apply, it is granted, and it sits on a public register.
- Patents, for an invention, a process or a method
- Registered trade marks: a name, a logo, a slogan, and in some countries a sound, a shape or a colour
- Registered designs, for how a product looks
- Plant breeder's rights
- Geographical indications, such as Champagne or Roquefort, which matter most in Europe
- Utility models, a shorter and easier patent in Germany, China, Japan and elsewhere, with no Australian or United States equivalent
Things you own the moment they are made
No form to fill in, no fee, no register. These are the ones owners most often forget.
- Copyright in anything written or drawn or recorded: website copy, software source code, photographs, illustrations, video, audio, manuals, training material, reports, plans
- An unregistered trade mark, meaning the reputation your name has built through use
- Moral rights, which belong to the person who made the thing and, in Australia, cannot be signed away
- Circuit layout rights, for semiconductor design
- Unregistered design rights, in the United Kingdom and Europe only
- Database rights, in the United Kingdom and Europe only
Things you keep to yourself
Protected by secrecy and by contract rather than by any register.
- Trade secrets: a formulation, a recipe, an algorithm, a manufacturing method, a pricing model
- Know how: your playbooks, procedures, checklists, methods, internal research, cost structures
- Your customer and prospect lists
- Data you have gathered that nobody else holds
- The written record of what you tried and what failed, which is often the hardest thing for a buyer to replicate
Things held by agreement
Not owned outright, and a buyer reads them on the same page as the rest.
- Licences you hold to use somebody else's: software, fonts, stock images, music, a patent, a brand
- Licences you have granted to others, and what they pay you
- Franchise rights, in either direction
- Assignments: whether what your contractors, agencies and freelancers made is actually owned by the business
- Confidentiality agreements, which are what keeps a trade secret a secret
- Restraints of trade, which are what stops it walking out
- Anything owned jointly with somebody else
- A lender holding security over any of it
Things that travel with the business
Strictly these are registrations or goodwill rather than intellectual property. A buyer values them all the same, and they are the ones most often in the wrong name.
- Your domain names, often the single most valuable thing on this list
- Your social media handles and the accounts behind them
- App store listings, developer accounts, and the ratings history attached to them
- Business name and company name registrations
- Your mailing list, and the consents that came with it
- Goodwill and reputation, including reviews, ratings, press and awards
- Certifications, accreditations and licences to operate
- The software itself, and the infrastructure it is built and deployed on
- Brand assets: typefaces, colour systems, photograph libraries, style guides