Patents: subject matter

May be a:
  • Process
  • Machine
  • Manufacture
  • Composition
Cannot be:
  • Laws of nature
  • Mathematics
  • Abstract ideas
Can also be:
  • New life forms are patentable, not just process to create
  • Purifying/extracting from nature (Parke-Davis)
  • Formerly software not patentable, now that's changing
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