https://patentbrief.org/company/purdue-pharma-lp Plain-English explanations of patents assigned to Purdue Pharma LP, newest first. en-us Mon, 15 Jun 2026 05:53:39 GMT https://patentbrief.org/patent/us/7993644/stelara-ustekinumab A patent describing specific antibodies that attach to a protein called tissue factor without interfering with the body's natural blood-clotting process. Tue, 09 Aug 2011 00:00:00 GMT https://patentbrief.org/patent/us/7993644/stelara-ustekinumab