Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7083703 | Filler and a process for the production thereof A filler comprising cellulose or lignocellulose fibrils on which light-scattering material particles have been deposited, and a process for the manufacture thereof. In the filler according to the invention, an alkyl derivative of cellulose, such as CMC, has been sor... | 08/01/2006 |
| 4871716 | Magnetically responsive, hydrophilic microspheres for incorporation of therapeutic substances and methods of preparation thereof Novel magnetically responsive hydrophilic protein or polypeptide microspheres prepared by dispersing an aqueous solution or dispersion of protein or polypeptide and particulate magnetically responsive material in an organic solvent solution of a high mole... | 10/03/1989 |
| 4655840 | Hydrophilic polymer compositions for injection molding A moldable hydrophilic polymer composition, preferably gelatin, for use in an injection molding device preferably controlled with a microprocessor. The composition has a molecular mass range of 10,000 to 2,000,000 Dalton or a molecular mass range of 10,00... | 04/07/1987 |
| 4601896 | Pharmaceutical capsule compositions and structures for gastric sensitive materials This invention provides oral dosage forms of therapeutic agents such as digestive enzymes which are subject to degradation and loss of activity at gastric pH. and compositions and methods for preparing same. Capsules of their components are formulated fro... | 07/22/1986 |
| 4419316 | Process of making films, fibers or other shaped articles consisting of, or containing, polyhydroxy polymers A process of preparing film, fibers and other shaped articles by nitrosating a polyhydroxy polymer in a reaction medium containing a solubilizing agent for the resulting polyhydroxy polymer nitrite ester and a suitable proton acceptor, bringing the reacti... | 12/06/1983 |
| 4306551 | Sterile improved bandage and sealant A flexible, liquid absorbent, adhesive bandage includes a backing element and a substrate attached to the backing element. The substrate comprises a homogeneous, hydrophilic, stable matrix including a solid phase formed of a synthetic polymer, a long chai... | 12/22/1981 |
| 4138535 | Nitrite esters of polyhydroxy polymers A polysaccharide or polyvinyl alcohol containing a mixture of nitrite ester groups with sulfate or nitrate ester groups with the mixture of ester groups being substantially uniformly distributed among the polymer units of the polysaccharide or polyvinyl a... | 02/06/1979 |
| 4045238 | Regenerated cellulose sponge Regenerated cellulose sponges of incresed absorbency and rate of absorption formed by impregnating the sponge material with a solution or dispersion containing from 0.005 to 0.25% of a water-soluble or water-dispersible, high molecular weight, hydrophylic... | 08/30/1977 |
| 4035569 | Preparation of cellulose nitrite Preparation of partially substituted nitrate and sulfate esters of polysaccharides or polyvinylalcohol, their esters containing a mixture of nitrite with sulfate or nitrate groups, aqueous media thickened with such esters, the simultaneous preparation of ... | 07/12/1977 |
