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 |
| 4725439 | Transdermal drug delivery device A medical device for the transdermal delivery of an active agent through sensitive intact skin is provided. The device comprises a matrix containing the drug having reinforcing means, preferably in the form of a fabric, embedded in the upper surface of th... | 02/16/1988 |
| 4704282 | Transdermal therapeutic system having improved delivery characteristics A transdermal therapeutic system using a subsaturated matrix is provided having improved approved release characteristics. Reinforcing means preferably in the form of a fabric are embedded in the upper surface of the subsaturated matrix. At least a portio... | 11/03/1987 |
