Defensive protection of traditional knowledge
- TKDL makes documented traditional medicinal knowledge usable as patent prior art
- Translation and classification reduce barriers to finding traditional-knowledge evidence
- Patent-office TKDL access agreements restrict use and onward disclosure
- Defensive prior-art protection prevents wrongful patents without granting a new monopoly
- Indian patent law excludes traditional knowledge and duplication of its known properties
- Traditional community knowledge can support pre-grant opposition in India