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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 5174748 | Chamber having a hot zone and a cold zone and at least one gas inlet tube A reactor (100) is provided which comprises an enclosure (1,2,3) which has along its longitudinal axis (4--4') a hot zone (1), a cold zone (2) and between the hot and the cold zone an intermediate zone (3) and which has at least one gas inlet tube (12,32)... | 12/29/1992 |
| 5118286 | Closed loop method and apparatus for preventing exhausted reactant gas from mixing with ambient air and enhancing repeatability of reaction gas results on wafers Mixing of spent reactant gases with ambient air inside a semiconductor wafer fabrication facility is avoided and consequently corrosion of a scavenger box in a wafer fabrication facility is avoided. Repeatability of reaction gas results on wafers in a pro... | 06/02/1992 |
| 4318690 | Venting process for organic heat transfer media A process for automatically venting noncondensable contaminants from a number of process vessels heated with an organic heat transfer vapor medium involves monitoring the temperature at each vessel and intermittently venting all vessels simultaneously in ... | 03/09/1982 |
