Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7002016 | Process for the preparation of threo-methylphenidate hydrochloride The present invention provides a process for the preparation of threo-methylphenidate hydrochloride. According to a preferred embodiment, the process comprises the following steps: (a) contacting 1-(phenylglyoxylyl)piperidine arene... | 02/21/2006 |
| 6156025 | Twist valve A twist valve for use in a fluid delivery system is provided for selectively allowing fluid flow and blocking fluid flow therethrough. The twist valve is in communication with a pre-filled flexible container and includes a proximal part and a distal part ... | 12/05/2000 |
