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...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.
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| Number | Title | Issue Date |
| 8120735 | Transflective liquid crystal display Pixels of an LCD are divided into two sub-pixels, one for a reflective mode and one for a transmittive mode. The cell gaps of both sub-pixels are the same, improving fabrication ease. A novel photoalignment technique is used together with a shadow mask in an embodim... | 02/21/2012 |
| 7968158 | Liquid crystal alignment layer and methods of making thereof The present invention relates to a liquid crystal alignment layer used in a liquid crystal cell, which is capable of providing high pretilt angles. ... | 06/28/2011 |
| RE42116 | Low dropout regulator capable of on-chip implementation A low-dropout regulator comprises a high-gain error amplifier having a differential input stage and a single-ended output, a high-swing high-positive-gain second stage with input connecting to the output of the error amplifier and a single-ended output, a p-type MOS... | 02/08/2011 |
| 7696971 | Method, materials and apparatus for driving gray-scale bistable cholesteric displays The invention provides a method for controlling the grey-scale modulation of a reflective bistable cholesteric display by applying selected sequences of high and low pulses to modulate the cholesteric domain size and helical axis orientation. Non-mesogenic dopants m... | 04/13/2010 |
| 7585664 | Integrated circuit optical detector for biological detection This invention provides an integrated circuit (IC) optical detector. The IC optical detector comprises a substrate and an IC. The substrate comprises a plurality of test sites defined thereon. The test sites comprise a surface suitably treated for coating of at leas... | 09/08/2009 |
| 7540717 | Membrane nanopumps based on porous alumina thin films, membranes therefor and a method of fabricating such membranes A technique has been developed to fabricate micro- or nanopumps based on porous alumina thin films. The main body of the nanopump consists of a porous alumina thin film (containing nano-sized channels of about 40-300 nm in diameter) with conductive surfaces (e.g. Au... | 06/02/2009 |
| 7531195 | Schisandrin B preparation The present invention provides a composition (e.g., a pharmaceutical composition) for reducing aging-related mitochondrial antioxidant status changes in a subject, wherein the composition comprises Schisandrin B. The present invention further provides a composition ... | 05/12/2009 |
| 6707527 | Bistable twisted nematic liquid crystal displays with twist angle of ±11 degrees The present invention provides the conditions for new bistable twisted nematic liquid crystal displays, in particular the necessary twist angles, liquid crystal retardation values, input and output polarizer angles, for both transmissive and reflective liquid crysta... | 03/16/2004 |
| 6521634 | Uses of dl-THP The present invention is concerned with new, previously unsuggested, therapeutic uses of dl-THP (dl-tetrahydropalmatine) including anxiety disorders, seizures, and status epilepticus.... | 02/18/2003 |
| 6362483 | Visible-blind UV detectors Visible-blind UV detectors are disclosed comprising an active layer of ZnSTe alloy. The Te composition can be varied to provide good lattice matching depending on the nature of the substrate (eg Si, GaP or GaAs) and a novel structure is provided to give h... | 03/26/2002 |
| 6289222 | Free-forming one-way network A one-way or single-channel communication network utilizing electromagnetic radiation signals of a fixed single or narrow-band frequency in free air space consists of a plurality of transmitters and a central receiver in which each message is encoded in a... | 09/11/2001 |
| 6081337 | Method and apparatus for measuring liquid crystal cell properties The present invention relates to methods and apparatus for measuring the optical properties, eg twist angle, cell gap, input director, of a transmissive or reflective liquid crystal cell. For a transmissive liquid crystal cell the cell is placed between a... | 06/27/2000 |
| 5869847 | Thin film transistor A thin film transistor (TFT) comprises a n+ source region and a p+ drain separated by an undoped offset region, or the complementary structure with a p+ source and a n+ drain. By means of this arrangement in the... | 02/09/1999 |
| 5853684 | Catalytic removal of sulfur dioxide from flue gas The present invention provides novel catalysts for the simultaneous removal of SO2 and NOx from flue gases. The catalysts may be supported or unsupported, pretreated or untreated, but allow the simultaneous reduction of SO2 | 12/29/1998 |
| 5757491 | Laser interferometer system for straightness measurements A laser interferometer system in particular for measuring the straightness of an object is described. This interferometer employs triangular prisms to refract the laser beams by certain angles with respect to the principal axis of the incident beam. Two c... | 05/26/1998 |
