https://patentbrief.org/company/genentech-inc Plain-English explanations of patents assigned to Genentech Inc, newest first. en-us Sat, 13 Jun 2026 10:06:24 GMT https://patentbrief.org/patent/us/4356270/recombinant-dna-cloning-genentech Genentech's 1979 patent on using engineered DNA to force bacteria to produce human proteins like insulin and growth hormones. Tue, 26 Oct 1982 00:00:00 GMT https://patentbrief.org/patent/us/4356270/recombinant-dna-cloning-genentech