Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 4588555 | Device for use in chemical reactions and analyses A device and method of making and using the same in performing manual and automated chemical reactions and analyses of clinical assay mediums. Such device including a solid, microporous element formed of adsorbent material and having walls defining an int... | 05/13/1986 |
| 4557910 | Production of soda ash from nahcolite Soda ash is prepared from dry-mined nahcolite ore by partially calcining the ore, dissolving the ore in aqueous solution, separating the resultant solution from the ore insolubles, crystallizing anhydrous sodium carbonate or sodium carbonate monohydrate, ... | 12/10/1985 |
| 4555391 | Dry injection flue gas desulfurization process YUtilization of a soda-type dry sorbent in a dry injection flue gas desulfurization process is increased, without sacrifice in the SO2 removal efficiency, by reinjecting a portion of the sorbent collected in the baghouse filter back into the ho... | 11/26/1985 |
| 4518433 | Enteric coating for pharmaceutical dosage forms The application discloses a process for making a polymeric powder which is readily dispersible in water to provide a composition useful for forming an enteric coating on pharmaceutical dosage forms and also a process for using the powder for its intended ... | 05/21/1985 |
| 4462839 | Enteric coating for pharmaceutical dosage forms The application discloses a process for making a polymeric powder which is readily dispersible in water to provide a composition useful for forming an enteric coating on pharmaceutical dosage forms and also a process for using the powder for its intended ... | 07/31/1984 |
| 4185079 | Removal of phosphine contaminant from carbon monoxide gas mixtures A method for removing small concentrations of phosphine contained in a carbon monoxide gas mixture by preferentially oxidizing the phosphine, in which the phosphine is oxidized with air at a temperature of from 500° C. to 800° C. to form phosphorus pent... | 01/22/1980 |
