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 |
| 5185313 | Adsorbent for metal ions, proteins and other inorganic and organic substances The invention relates to an adsorbent agent with special advantages to heavy metals, proteins, etc. and is based upon a ligand with an atom sequence (A): N--C--Cn --N, wherein n is 1 or 2, and one terminal, a ring atom N in a heteroaromatic rin... | 02/09/1993 |
| 5141966 | Metalchelating, hydrophilic polymer The invention concerns a polymer product for immobilizing of metal ions, adsorption, and the like, with the structure P--X--A--Q wherein P is a hydrophilic polymer with a molecular weight of more than 3 000 Daltons. X is a heteroatom, O, S or N, A is an atom s... | 08/25/1992 |
| 4677027 | Polymer coated particles having immobilized metal ions on the surfaces thereof A solid phase can be coated superficially with a polymeric coating by substituting immobilized metal ions on the surface of the solid phase with a hydrophilic polymer or a derivative or aggregate thereof, through a chemisorption process. The solid phase m... | 06/30/1987 |
