Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7355475 | Output circuit of vacuum-tube amplifier An output circuit of a vacuum-tube amplifier is disclosed. An output circuit of a conventional vacuum-tube amplifier has shortcomings that a front end amplification unit uses a coupling condenser or a transformer to output an AC signal to an output node, a bias volt... | 04/08/2008 |
| 6984940 | Electronic tube with simplified collector The invention relates to amplifying electron tubes operating at microwave frequencies. The electron tube comprises: a pump-out tube that allows the vacuum inside the electron tube to be created; an electron gun that emits an electron beam inside the electron tube; a... | 01/10/2006 |
| 5497053 | Micro-electron deflector An electron deflection device responsive to an electrical input signal for producing an output signal includes a focusing array for producing a collimated electron beam input ribbon in the direction of a propagation axis, the input ribbon being elongated ... | 03/05/1996 |
| 5124664 | Field emission devices A klystron device comprises an array of cold-cathode field emission elements arranged to form a distributed amplifier which further comprises a modulation strip line and a catcher strip line. A collector electrode is spaced from the catcher strip line. Th... | 06/23/1992 |
| 4328466 | Electron bombarded semiconductor device with doubly-distributed deflection means An electron bombarded semiconductor amplifier including an elongated envelope having an electron gun projecting a sheet electron beam towards a distributed element semiconductor target which propagates an output signal including a single extended area sem... | 05/04/1982 |
| 4045705 | Electron bombarded semiconductor device An electron bombarded semiconductor amplifier with a simplified target construction where the common point of the diode array is returned to ground enabling the radio frequency bypassing capacitors to be made a smaller size and the dc blocking capacitors ... | 08/30/1977 |
| 4017805 | Compensated electron beam deflection device An electron beam deflection amplifier having two spaced parallel electron ams and a pair of spaced collector electrodes for intercepting the beams to provide an output beam current. The beams are deflected in opposite directions by the input signal to be ... | 04/12/1977 |
