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.
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 |
| 7897417 | Hybrid nanocomposite semiconductor material, and method of producing inorganic semiconductor therefor Hybrid semiconductor materials have an inorganic semiconductor incorporated into a hole-conductive fluorene copolymer film. Nanometer-sized particles of the inorganic semiconductor may be prepared by mixing inorganic semiconductor precursors with a steric-hindering ... | 03/01/2011 |
| 7785397 | Highly microporous thermoplastic/bismaleimide semi-interpenetrating polymer network In order to synthesize semi-interpenetrating polymer networks (semi-IPNs) with molecular sieve characteristics, polyetherimide/bismaleimide (PEI/BMI) chromophore composites were made through sol-gel technique. A tunable and compatible chemical structure with fine mo... | 08/31/2010 |
| 7659009 | Thermally crosslinkable materials and multi-layered devices therefrom The invention disclosed relates to cross-linkable composites of boronic acid or a boronic acid derivative such as a boronate, and an organic or organo-metallic moiety having a functionality such as hole transporting, electron transporting and light emitting, to cros... | 02/09/2010 |
| 7645856 | Ether nitrile co-polymers containing sulfonic acid groups for PEM application Ether nitrile co-polymers containing sulfonic acid groups, including wholly aromatic poly(aryl ether ether nitrile)s containing sulfonic acid groups (SPAEEN)s, and poly(phthalazinone ether ketone nitrile) co-polymers containing sulfonic acid groups (SPPEKN)s, intend... | 01/12/2010 |
| 7604892 | Y and Nb-doped SrTiOas a mixed conducting anode for solid oxide fuel cells The invention disclosed relates to novel materials of the general formula (Sr1-1.5xM1x)1-y/2Ti1-yM2yO3 [I] wherein M1 is a first trivalent d... | 10/20/2009 |
| 7579427 | Synthesis of poly(arylene)s copolymers containing pendant sulfonic acid groups bonded to naphthalene as proton exchange membrane materials A new series of wholly aromatic poly(arylene ether ether ketone ketone)s containing pendant sulfonic acid groups (SPAEEKK) were conveniently prepared by potassium carbonate mediated nucleophilic polycondensation reactions of inexpensive commercially available monome... | 08/25/2009 |
| 7566681 | Platinum based nano-size catalysts The synthesis of Pt and PtRu and other Pt based nano-particles that catalyze the electrochemical oxidation of methanol, carbon monoxide and hydrogen, as well as oxygen reduction, is described. The Pt based catalysts are synthesized in solution forming particles of 0... | 07/28/2009 |
| 7541426 | Fluorinated comb-shaped polymers Fluorinated comb co-polymers have a main chain including a semi-rigid hydrophobic fluorinated poly(ether) backbone and comb segments in the form of flexible and monodisperse side chains that are more hydrophilic than the backbone. The side chains may be hydrophilic ... | 06/02/2009 |
| 7353709 | Method and system for determining material properties using ultrasonic attenuation A method and system is disclosed for determining a property of an object by measuring ultrasonic attenuation. With the proposed method, a measured ultrasonic interaction signal of the object is compared with a reference signal produced using the same generation and ... | 04/08/2008 |
| 7300227 | Recovery of non-aqueous phase liquids from ground sources The invention disclosed relates to a method and apparatus for recovering non-aqueous phase liquids (NAPL) from regions below ground where NAPL spills are sources of aquifer contamination. The apparatus includes a system to supply gas-supersaturated liquid, a system ... | 11/27/2007 |
| 7232507 | High volumetric efficiency electrochemical cell design for treatment of low concentrations of contaminants in low conductivity water An electrochemical cell design is disclosed for the particular application of the electrochemical treatment of contaminants in water. The cell is designed to allow the treatment of low concentrations of contaminants in low conductivity water efficiently, and to be s... | 06/19/2007 |
| 7220484 | Polymeric nanocomposites comprising epoxy-functionalized graft polymer Disclosed is a nanocomposite comprising a nano-reinforcing material (e.g., layered clay), a polymer matrix (e.g., a polyolefin), and, an epoxy-functionalized graft polymer compatible with the polymer matrix (e.g., epoxy-grafted polyolefin). Such nanocomposites are u... | 05/22/2007 |
| 7112690 | Volatile noble metal organometallic complexes A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic l... | 09/26/2006 |
| 7049393 | Techniques for the preparation of highly fluorinated polyethers A process for preparing a fluorinated poly(arylene ether) comprising the repeating unit: wherein n provides a molecular weight up to about 30,000 to 100,000, X represents one of following groups: none, ketone, su... | 05/23/2006 |
| 6827832 | Electrochemical cell and process for reducing the amount of organic contaminants in metal plating baths The invention disclosed relates to an electrochemical process for decreasing high levels of organic contaminants in metal plating baths. The process involves breaking down the organic contaminants in an electrochemical cell by electrochemical oxidation. The electroc... | 12/07/2004 |
| 6825046 | Micro extraction technique The invention disclosed relates to a method and apparatus for solid phase microextraction of target analytes from solid or fluid samples. The apparatus comprises gas tight enclosure means, means for introducing a sample including target analytes into the enclosure m... | 11/30/2004 |
| 6764024 | Rotary foam nozzle A rotary nozzle for compressed air foam (CAF) has a barrel mounted for rotation about an axis perpendicular to its longitudinal axis. The barrel is mounted to a CAF supply conduit and has a cross-sectional area substantially larger than the cross-sectional area of t... | 07/20/2004 |
| 6753110 | Cathode active material for lithium electrochemical cells The invention disclosed relates to a compound of molecular formula LixCryMn2−yO4+z, wherein 2.2 | 06/22/2004 |
| 6746863 | Sterilizable probe for extraction of volatile compounds in liquids and their quantitative determination An improved tube probe for measuring volatile compounds in a liquid or gas contained in a reactor or in any other environment is disclosed. The probe is made of a single piece of metal, to one end of which is attached a gas permeable tubing, threaded on a supporting... | 06/08/2004 |
| 6652751 | Intrinsically bacteriostatic membranes and systems for water purification The invention disclosed relates to intrinsically bacteriostatic synthetic polymer membranes, and to process for the manufacture thereof. In one embodiment, bacteriostatic metal ions are attached to a surface of a preformed synthetic polymer membrane by st... | 11/25/2003 |
| 6642052 | Efficient generation of adenovirus-based libraries by positive selection of adenoviral recombinants through ectopic expression of the adenovirus protease Disclosed is a new system for generating recombinant adenovirus vectors and adenovirus-based expression libraries, by positive selection of recombinants deleted for the endogenous protease gene, which gene is expressibly cloned into another region of the ... | 11/04/2003 |
| 6632443 | Water-soluble compositions of bioactive lipophilic compounds Water-soluble compositions comprising a lipophilic compound and a solubilizing agent of the general formula: wherein: X is a residue of a hydrophobic moiety, Y is a residue of a hydrophilic moiety, p is 1 or 2, m is 0 or 1, and n is an integer g... | 10/14/2003 |
| 6620618 | Complementary cell line for the growth of adenovirus mutants with a deleted protease gene An adenovirus vector/packaging cell line system is disclosed, in which the vector replication is blocked by deletion of a single gene, which deletion does not interfere with any other viral functions. The deleted gene is the gene of the adenovirus proteas... | 09/16/2003 |
| 6553887 | Foam formulations The invention disclosed relates to a foam-forming composition, for suppression/containment of blast from explosive devices. The composition comprises, a) a surfactant 40-80% w/w b) a foam stabilizer 0-7% w/w c) a polyalkylene glycol 10-30% w/w d) water, balanc... | 04/29/2003 |
| 6506524 | Electrolyte comprising fluoro-ethylene carbonate and propylene carbonate, for alkali metal-ion secondary battery The invention disclosed is an alkali metal-ion secondary cell having a carbonaceous anode and an electrolyte, comprising an alkali metal salt dissolved in an organic electrolyte solvent. Intercalation and de-intercalation during repeated charge/discharge ... | 01/14/2003 |
| 6402865 | Multilayered polymers and foams with variable sized interlayer gaps The invention disclosed provides integral multilayered polymers with variable interlayer gaps, and processes for their manufacture. The materials thus produced consist of many layers of a polymeric material, which may be a single polymer or a blend of com... | 06/11/2002 |
| 6391934 | Manufacturing foams by stress-induced nucleation The invention disclosed provides a method for inducing nucleation in a polymer by subjecting the polymer containing dissolved gas to an external stress generated, for example, by applying hydrostatic or mechanical pressure. The applied stress restricts th... | 05/21/2002 |
| 6369256 | Self-reducible copper(II) source reagents for chemical vapor deposition of copper metal Volatile low melting solid Cu(II) metal complexes are provided which are capable of depositing a copper film on various substrates under CVD conditions in the absence of reducing carrier gas H2. These CU(II) metal complexes are represented by t... | 04/09/2002 |
| 6331504 | Seed treatments for improving fall seeding survival of crucifers Seeds of Brassica's and related species (Crucifers), having increased dormancy coupled with greater tolerance to stresses associated with fall seeding in long winter climates, are produced by treatment with solutions of sugars and/or polyols, for a specif... | 12/18/2001 |
| 6316410 | Parathyroid hormone analogues for the treatment of osteoporosis The invention disclosed relates to analogues of human parathyroid hormoneh(PTH) which have increased activities in bone restoration, and increased bioavailablities. The analogues described are either single cyclic (1-28) or (1-29) analogues, or double cyc... | 11/13/2001 |
| 6291226 | Adenovirus mutants with deleted protease gene An adenovirus vector/packaging cell line system is disclosed, in which the vector replication is blocked by deletion of a single gene, which deletion does not interfere with any other viral functions. The deleted gene is the gene of the adenovirus proteas... | 09/18/2001 |
| 6248321 | Encapsulation of microparticles in teardrop shaped polymer capsules of cellular size Microparticles such as propagules of eukaryotic biocontrol agents are encapsulated in cellular-scale polymer capsules that have a diameter similar to normal eukaryotic cells in a range of about 10 μm to about 400 μm. The microparticles are encapsulated ... | 06/19/2001 |
| 6216579 | Composite armor material The invention disclosed relates to a composite armor material comprising an outer ballistic impact resistant layer of a steel material having a Rockwell "C" scale hardness of 47-54, and an inner blast resistant steel layer having a fracture toughness of 3... | 04/17/2001 |
| 6191172 | Water-soluble compositions of bioactive lipophilic compounds Water-soluble compositions comprising a lipophilic compound and a solubilizing agent of the general formula: ##STR1## wherein: X is a residue of a hydrophobic moiety, Y is a residue of a hydrophilic moiety, p is 1 or 2, m is 0 or 1, and n is an integer greater... | 02/20/2001 |
| 6184313 | Hybrid silane dendrimer-star polymers A silane or carbosilane dendrimer is modified with bridge moieties and polymer arms attached to the bridges to form hybrid dendrimer-star polymers. The bridge moieties are attached via Si--C bonds to the silane or dendrimer. The bridge has one or more rea... | 02/06/2001 |
| 6173908 | Air aspirating foam nozzle A foam generating nozzle is disclosed comprising a cylindrical housing, a first inlet at one end of the housing for connection to a supply of foamable liquid under pressure, a second inlet at the first end for air supply, a foam discharge outlet at the ot... | 01/16/2001 |
| 6127337 | Bivalent thrombin inhibitors Hirudin is the most potent and specific thrombin inhibitor and is derived from the medicinal leech. It is reported to inhibit thrombin with an equilibrium dissociation constant (Ki) value of 2.2×10-14 M. synthetic thrombin inhibitor... | 10/03/2000 |
| 6113794 | Composite solvent resistant nanofiltration membranes The invention disclosed relates to a nanofiltration composite membrane that is solvent and pH stable and may be used to separate at least one dissolved or suspended component from a liquid phase, including (a) a substrate ultrafiltration membrane formed from a... | 09/05/2000 |
| 6080798 | Manufacturing foams by stress-induced nucleation The invention disclosed provides a method for inducing nucleation in a polymer by subjecting the polymer containing dissolved gas to an external stress generated, for example, by applying hydrostatic or mechanical pressure. The applied stress restricts th... | 06/27/2000 |
| 6075199 | Body heat power generator A method and apparatus for generating electrical power using animal body heat as the sole energy source. The apparatus includes a plurality of thermocouples connected in series and thermal insulating material for retaining heat in the hot junction and the... | 06/13/2000 |