2015-05-042015-05-042014-12-09San, Ka-Yiu, Bennett, George N., Lin, Henry, Martinez, Irene and Zhu, Jiang, "Increasing NADPH-dependent products." Patent US8906667B2. issued 2014-12-09. Retrieved from https://hdl.handle.net/1911/80171.https://hdl.handle.net/1911/80171A method of increasing cellular NADPH levels by expressing one or more genes that encode an enzyme that causes the production of NADPH. The system is combined with other enzymes that require NADPH, thus improving the overall yield of the desired product.17 ppengUtility patentUS8906667B2