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!
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 |
| 7355504 | Electrical devices An electrical device which comprises first and second laminar electrodes and a laminar PTC resistive element sandwiched between them, the device comprising (a) a main portion which comprises a main part of the first electrode, a ma... | 04/08/2008 |
| 5975756 | Heater wire temperature measuring copper shield A method of measuring the temperature of a wire which is surrounded by a layer of insulation includes the step of wrapping the layer of insulation with an electrically and thermally conductive ground shield having two opposing longitudinal ends, one of th... | 11/02/1999 |
| 4924067 | Temperature controlled soldering resistor to change the set temperature An accurate, setting-protected, temperature controlled soldering iron has a control circuit including a non-adjustable replaceable resistor mounted near the junction of the handle and the tube which holds the soldering tip. When it is desired to change th... | 05/08/1990 |
| 4924205 | Chip resistor and method of manufacturing a chip resistor A chip resistor comprising a cuboid resistor body of a ceramic material and solderable, metal, current-supply strips at a first pair of opposing side faces of the resistor body, can readily and accurately be manufactured in that a second pair of opposing ... | 05/08/1990 |
| 4114134 | Potentiometer A potentiometer includes a conductive member and a resistive member both enclosed in a flexible fluid-filled bag so that depression of a point on the bag causes the conductive member to touch a point on the resistive member. Latching means are provided to... | 09/12/1978 |
| 4081781 | Strip potentiometer An elongated tape fabricated of an electrically insulative material has a pair of strips which run therealong, these two strips being joined together at one end thereof but not at the other, to form an open loop. The strips are fabricated of an electrical... | 03/28/1978 |
