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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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Class 361/255 - Including spark electrode make-break


Subclass of Class 361 - Electricity: electrical systems and devices
Definition: Subject matter wherein an electromagnet causes the spark
No. of patents: 6
Last issue date: 11/15/2011


NumberTitleIssue Date
8059384Printed circuit board reinforcement structure and integrated circuit package using the same
A printed circuit board reinforcement structure for a printed circuit board receiving a plurality of surface mounting devices, and an integrated circuit package using the same. The structure includes a hard layer having one or more openings formed at areas correspon...
11/15/2011
7116542Micro-switches for downhole use
A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provid...
10/03/2006
6990732Method of manufacturing a micrometer-scaled electronic-charge-transferring device
A method of manufacturing an electronic-charge-transferring device includes providing a charged species source and a charge species drain and providing a movable component for transferring charge to the charged species drain. A first protrusion proximate to the move...
01/31/2006
6953556Air conditioner devices
An air conditioner includes an ion generator that provides ions and safe amounts of ozone. The ion generator includes a high voltage generator that provides a voltage potential difference between first and second electrode arrays. At least one of the first and secon...
10/11/2005
4695723Corona-charging apparatus
A corona-charging apparatus for charging successive image area segments of a charge-receiving element, which corona-charging apparatus is capable of adjusting the charging rate from one segment to the next while minimizing the transition region between su...
09/22/1987
4381913Combustion heating system
A porous ceramic heating reactor is positioned within a tubular casing to contain the flame and the end products of combustion. A flattened portion of the casing extends substantially past the reactor to provide for further transfer of heat through the ca...
05/03/1983
 
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