Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 4232676 | Surgical cutting instrument The present invention provides a surgical cutting instrument having a blade portion and cutting edge therefor with electric input elements located near the cutting edge for cutting the tissue and cauterizing the surfaces of the incision, thereby allowing ... | 11/11/1980 |
| 4228800 | Bipolar electrosurgical knife An electrosurgical instrument comprising a handle which holds a blade assembly comprising a plurality of electrodes and insulation members positioned between the electrodes. The blade assembly comprises a center electrode of specified thickness, insulatio... | 10/21/1980 |
| 4202337 | Bipolar electrosurgical knife An electrosurgical instrument for cutting, spot coagulation and point coagulation comprising a nonconductive handle which holds a blade assembly comprising a plurality of electrodes and an insulation member separating the electrodes. The blade assembly co... | 05/13/1980 |
| 4161950 | Electrosurgical knife An electrosurgical knife blade of insulating material having a pair of electrodes adapted to be connected to a radiofrequency generator.... | 07/24/1979 |
| 4043342 | Electrosurgical devices having sesquipolar electrode structures incorporated therein An electrosurgical device adapted for connection to an electrical generator having active and return output terminals, the device being used to cut, coagulate, or otherwise treat organic tissue or the like, the device comprising: an insulative support con... | 08/23/1977 |
| 4034762 | Vas cautery apparatus This vas cautery apparatus includes a bipolar needle electrode, a pencil hand control, and a cautery electronic circuit. The bipolar needle electrode comprises a unitary center conductor and tip and the center conductor may be effectively insulated from a... | 07/12/1977 |
| 3987795 | Electrosurgical devices having sesquipolar electrode structures incorporated therein An electrosurgical device connected to an electrical generator having active and return output terminals, the device being used to cut, coagulate, or otherwise treat human tissue or the like, the device comprising: an electrode support; an active electrod... | 10/26/1976 |
| 3980861 | Electrically heated miniature thermal implement A miniature thermal wire stripper having a pair of heater elements in the form of hollow tubes each with a heater coil disposed therein and affixed to a pair of spring loaded handles for contacting and subsequently melting through thermal (e.g. thermoplas... | 09/14/1976 |
| 3970088 | Electrosurgical devices having sesquipolar electrode structures incorporated therein An electrosurgical device connected to an electrical generator having active and return output terminals, the device being used to cut, coagulate, or otherwise treat human tissue or the like, the device comprising: an insulative electrode support; an acti... | 07/20/1976 |
