Home / Hair Loss Treatments / Treatment Patents / Dyphylline for hair growth (Procter & Gamble) Dyphylline for hair growth (Procter & Gamble) Patent: United States Patent H1,480 Luo Sept. 5, 1995 Inventors: Luo; Xiaochun (West Chester, OH). Assignee: The Procter & Gamble Company (Cincinnati, OH). Appl. No: 164,600 Filed: Dec. 9, 1993 Abstract: The subject invention relates to methods for promoting hair growth in mammals comprising topical application of dyphylline or a pharmaceutically-acceptable salt thereof. The subject invention further involves topical compositions comprising dyphylline. 17 Claims, No Drawings References Cited: U.S. Patent Documents 4,341,783 Jul, 1982 Scheindlin 424/253 Foreign Patent Documents 356271 Jul, 1989 EP 3913245 Nov, 1989 DE 62-045527 Feb, 1987 JP Other References Stuttgen, C., and D. Neumann, “Caffein and Skin”, Aztliche Kosmetologie vol. 19, pp. 163-187 (1980). Seiler, W. G., “Possibilities of Preserving Hair Growth and of Controlling Dandruff and Seborrhoea in the Region of the Capillitium”, Akt. Derm. vol. 7, pp. 51-59 (1981). Seiler, W. G., E. Bohnert, E. G. Jung, and U. Feldmann. “Local Therapy in Androgenically Caused Hairloss”, Artzliche Kosmetologie vol. 14, pp. 209-220 (1984). Imokawa, G., Y. Yada, and Y. Hori., “Induction of Melanization Within Hair Bulb Melanocytes in Chinchilla Mutant by Melanogenic Stimulants”, Society for Investigative Dermatology, Inc., vol. 91(2), pp. 106-113 (1988). Primary Examiner: Walsh; Donald P. Assistant Examiner: Chi; Anthony R.