...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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 |
| 7337259 | Smart card virtual hub A smart card virtual hub combines an ISO7816 compliant smart card reader interface with a USB hub that provides one or more attachment points for connection of devices to the USB bus, thereby interfacing such devices to the host computer. The hub in the presently pr... | 02/26/2008 |
| 7253569 | Open lamp detection in an EEFL backlight system A method according to one embodiment may include supplying power to plurality of External Electrode Fluorescent Lamps (EEFLs). The method of this embodiment may also include generating signals proportional to the voltage of each EEFL. The method of this embodiment m... | 08/07/2007 |
| 7203048 | DC to DC controller with inrush current protection A DC to DC controller for controlling an inrush current from a DC to DC converter to a battery system having an internal isolating switch. The DC to DC controller is configured to control the DC to DC converter based on a state of the internal isolating switch. If t... | 04/10/2007 |
| 7196652 | High precision analog to digital converter An analog to digital converter may include an input switch array configured to alternately sample a first and a second input signal to a first and a second input capacitor during two different sample time intervals, an integrator having a first and second integratio... | 03/27/2007 |
| 6936975 | Power supply for an LCD panel A power supply system is provided for a multiple lamp LCD panel. In one aspect, the power supply includes a plurality of transformers for driving a plurality of respective CCFLs. The primary sides of each transformer are coupled in series to thereby reduce the stres... | 08/30/2005 |