Thomas Thomas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A partially purified proteinaceous bone-inducing factor of 10,000 to 30,000 daltons is described. It is derived from demineralized bovine bone by extraction with a chaotropic agent, gel filtration, cation exchange chromatography using carboxymethyl cellulose at pH 4.8 and gradient elution with NaCl at 10 mM to about 150 mM.
Abstract: A process for partially purifying an osteogenic factor from demineralized bone particles in which nonfibrous proteins are extracted from the demineralized bone with a dissociative extractant for nonfibrous proteins, such as urea or guanidine hydrochloride, the extracted nonfibrous proteins are fractionated by anion exchange chromatography using DEAE cellulose at pH 7, the fraction not adsorbed by the DEAE cellulose is further fractionated by cation exchange chromatography using CM cellulose at pH 4.8, the fraction adsorbed by the CM cellulose is eluted therefrom and the partially purified osteogenic factor is recovered from the eluate as a .ltoreq.30,000 dalton protein isolate.
Abstract: A screen printing device for T-shirts and the like including a flat perforated portion on which the T-shirt is positioned, a vacuum being applied to cause the ink to go through the printing screen.
Abstract: A golf ball holder for removably retaining a plurality of golf balls is provided. The holder is open ended and includes a vertically elongated hollow body member forming a pocket for the balls and a lower portion provided with transversely spaced arcuate side walls and diametrically opposed openings through which a ball may be drawn downwardly for removal. The walls of the holder are adapted to receive the shank portions of golf tees and a clip member is provided whereby the holder may be attached to the clothing worn by a golfer.