https://whimsical.com/en-TFGJjXzVCeRdQvUnVQwVQV
Patent assignments (events) include the following types
i) Transfer of ownership: Change of patent holder through patent transactions (purchase/sale), transfer of patents through M&A, and other (change of part of the owner, transfer of ownership shares)
ii) Setting and releasing the right of enforcement (licence) : There are two types of enforcement rights: exclusive enforcement right and non-exclusive enforcement right. When setting an enforcement right, the assignor is the right holder, and when releasing it, the assignor is the licensee.
iii) Setting and releasing security rights: When setting security rights, the assignor is the right holder, and when releasing security rights, the assignor is the security holder.
iv) Name change/address change of right holder, etc.
https://whimsical.com/en-A6iWimFMLtzs6LP999ZMmX
PatentPia GoldenCompass provides patent transactions/purchased patents contents by patent set criteria. Patent set criteria has patent sets corresponding to i) company, ii) keyword, iii) technology field/patent classification, iv) researcher , v) keyword/technology field/patent classification of company, vi) keyword/technology field/patent classification of researchers, etc.