Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 4740802 | Invisible electrostatic tracking indicia for color plotters A method for determining the position of media in a system where images are applied to the media at subsequent stations includes the steps of placing on the media at a first position tracking information consisting of a pattern of electrostatic charge to ... | 04/26/1988 |
| 4734788 | Single pass electrostatic color printer/plotter having straight paper path A color printer/plotter includes a frame having a paper inlet, a number of print stations, and a paper outlet. The paper is pulled past the print stations by a single driver at the paper outlet. Each print station includes a electrostatic charging head ha... | 03/29/1988 |
| 4721267 | Mounting assembly for a roll of material An assembly for mounting a roll of paper or Mylar.RTM. film having a hollow core includes a radially expanding core insert at each end of the roll and a core insert support, mountable to a support structure, to support, position and apply a drag force to ... | 01/26/1988 |
| 4680626 | Color image processing system for converting analog video-to-digital data A color image processing system is described which provides more realistic hard copy color images from composite video system input signals than previously available. The image processing system includes a synchronization separator 20 which operates to se... | 07/14/1987 |
| 4672450 | Composite video synchronization pulse separator for color image processor An image processing system includes a synchronization separator 20 which operates to separate the synchronization pulses from the analog video information supplied. The separator includes an amplifier with a pair of input terminals. The video is coupled t... | 06/09/1987 |
| 4631740 | Time base generator for color image processor A color image processing system is described which provides more realistic hard copy color images from composite video system input signals than previously available. The analog video information is converted to digital form by an analog-to-digital conver... | 12/23/1986 |
| 4478480 | Holographic scanner spinner wobble correction system An optical laser scanning system includes a hologram spinner disc (32) having diffraction grating facets (33) around its periphery. The spinner is susceptible to wobble and translational movement of the facets with respect to a plane perpendicular to the ... | 10/23/1984 |
