Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 6488953 | Oral transmucosal delivery An autoadhesive oral transmucosal delivery device contains a pharmaceutically active agent which is delivered via mucosal tissues in the mouth. The device comprises a dry hydrogel polymer which autoadheres to the moist mucosal surface for a time sufficien... | 12/03/2002 |
| 5269321 | Retrievable pessary A retrievable pessary for intravaginal or intrarectal use comprises a solid body comprising a pharmaceutically active ingredient; a net pouch which encloses the body; and a withdrawal cord attached to the pouch to enable the pessary to be withdrawn after ... | 12/14/1993 |
