...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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 |
| 7385067 | Process for the preparation of compounds having a CFO bridge The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the... | 06/10/2008 |
| 7371874 | 6-Alkylamino-2-methyl-2′-(N-methyl substituted sulfonamido)methyl-2H-1-benzopyran derivative as anti-inflammatory inhibitor The present invention relates to a noble 6-alkylamino-2-methyl-2′-(N-methyl substituted sulfonamido)methyl-2H-1-benzopyran derivative, a method for preparing the same with high efficiency using a parallel synthetic method, one of combinatorial chemical synthetic t... | 05/13/2008 |
| 7368575 | 6-alkylamino-2,2′-disubstituted-7,8-disubstituted-2H-1-benzopyran derivatives as 5-lipoxygenase inhibitor When a multi-step process reaction is carried out in a solution, it generally requires several treatments and purification procedures to go through with after the reaction, however, the inventive method for preparing 2,2′-disubstituted-3,4-dihydro-7,8-disubstitute... | 05/06/2008 |
| 7294725 | Process for preparing salmeterol A process for the preparation of a compound of formula (I) or a single enantiomer thereof, or a salt or a solvate thereof, wherein W is a chiral auxiliary or hydrogen and P1 and P2 are each ... | 11/13/2007 |
| 7256218 | Biguanide and dihydrotriazine derivatives Biguanide and dihydrotriazine derivatives, preferably substituted asymmetrical imidodicarbonimidic diamides derived from hydroxylamines, and compositions containing biguanide and dihydrotriazine derivatives are disclosed. In addition, methods of using the biguanide ... | 08/14/2007 |
| 7157510 | Method of nucleating a polyolefin composition with acetal-based compounds An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compoun... | 01/02/2007 |
| 7125853 | Bicyclic carbohydrate compounds useful in the treatment of infections caused by sp., such as hepatitis C and bovine viral diarrhea viruses We describe the use of bicyclic carbohydrates for the treatment of hepatitis C virus infections. Different bicyclic carbohydrates were tested in vitro against DNA-viruses, retro-viruses and Flaviviridae sp., an important family of human and animal RNA pathoge... | 10/24/2006 |
| 7125854 | Bicyclic carbohydrates as antiprotozoal bioactive for the treatment of infections caused by parasites The use of bicyclic carbohydrates for the treatment of parasite infections is described. Different bicyclic carbohydrates have been tested in vitro against a number of protozoa. These compounds also have been screened against viruses, tumors, bacteria and fungi. Com... | 10/24/2006 |
| 7098243 | Bicyclic carbohydrates as antiviral bioactives for the treatment of infections caused by the alphaherpesvirinae HSV-1 and HSV-2 Novel bicyclic carbohydrate compounds are effective for the prophylaxis and treatment of diseases caused by infections of the alphaherpesvirinae HSV-1 and HSV-2. The invention includes the compound wherein X... | 08/29/2006 |
| 7019003 | Peptide deformylase inhibitors Novel PDF inhibitors and novel methods for their use are provided. ... | 03/28/2006 |
| 6756375 | 10-Aryl-11h-benzo[b]fluorene derivatives and analogs for medicinal use The invention provides for a non-steroidal compound having the formula wherein Re and ′Re are OH, optionally independently etherified or esterified; Z is —CH2— or —CH2C... | 06/29/2004 |
| 6706744 | Glucagon antagonists/inverse agonists Novel compounds, which act to antagonize the action of the glucagon hormone on the glucagon receptor. Owing to their antagonizing effect of the glucagon receptor the compounds may be suitable for the treatment and/or prevention of any diseases and disorders, wherein... | 03/16/2004 |
| 6583161 | Benzenesulfonamides and benzamides as therapeutic agents The invention provides compounds, compositions and methods relating to novel aromatic derivatives and their use as pharmacologically active agents. The compositions find particular use as pharmacological agents in the treatment of disease states, particul... | 06/24/2003 |
| 6410790 | 3-amin3-arylpropan-1-ol compounds, their preparation and use 3-amino-3-arylpropan-1-ol compounds of formula I: ##STR1## R1 and R2 independently denoting C1-6 alkyl, or together denoting a (CH2)2-6 ring optionally substituted by phenyl, R3 denoting C3... | 06/25/2002 |
| 6407100 | Fungicidal aromatic oximes The invention relates to novel compounds of the formula ##STR1## in which R1 is C1-4 alkyl and (Y--X) is CH2, C1-2 alkylthio-CH.dbd. or C1-2 alkyl-ON.dbd. and Z is an aldimino or ketimino group, and t... | 06/18/2002 |
| 6365756 | Process for the production of optically enriched (R)- or (S)-albuterol A process for the production of optically enriched (R)- or (S)-albuterol or (R)- or (S)-albuterol salts by the resolution of a novel ketal derivative 2-(N-t-butylamino)-1-(+2,2-dimethyl-1,2-benzodioxin-6-yl) ethanol, with a chiral tartaric acid derivative... | 04/02/2002 |
| 6355634 | Aromatic compounds The invention relates to novel compounds of the formula ##STR1## in which R1 is C1-4 alkyl and (Y--X) is CH2, C1-2 alkylthio-CH.dbd. or C1-2 alkyl-ON.dbd. and Z is an aldimino or ketimino group, and t... | 03/12/2002 |
| 6331627 | Intermediates of benzoxazinone derivatives and preparation thereof The present invention relates to novel antiobesity and hypocholesterolemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptab... | 12/18/2001 |
| 6310080 | Amino acid hydroxyethylamino sulfonamide retroviral protease inhibitors Selected amino acid hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, rela... | 10/30/2001 |
| 6277867 | Pesticide compounds, compositions and process for the preparation thereof The invention relates to compounds of general formula (I), their optically active isomers and salts wherein Ar=alycylic, aromatic or one or more heteroatom containing heterocyclic moiety, optionally substituted by one or more alkoxy-, methylenedioxy-, alk... | 08/21/2001 |
| 6274613 | Cyclic imines as pesticides The invention relates to novel cyclic imines of the formula (I) ##STR1## in which Ar1 and Ar2 each represent substituted phenyl and n represents 1, to a process for their preparation and to their use as pesticides.... | 08/14/2001 |
| 5998667 | Substituted biphenyl oxazolines The invention relates to new substituted biphenyloxazolines of the formula (I) ##STR1## in which R1 represents C1 -C6 -halogenoalkylthio and R2 represents hydrogen, or R1 and R2 together wi... | 12/07/1999 |
| 5952386 | Dihalopropene compounds, insecticides containing them as active ingredients, and intermediates for their production The present invention provides dihalopropene compounds of the general formula: ##STR1## wherein R1 is C1 -C10 alkyl or the like; L is C(.dbd.O)NH or the like; R2, R3 and R4 are indepen... | 09/14/1999 |
| 5869702 | Polyol ether derivatives and production methods therefor Polyol ether derivatives, a method for producing the polyol ether derivatives, and a working fluid composition for a refrigerating machine containing a hydrofluorocarbon and a refrigeration oil containing the polyol ether derivatives as a base oil.... | 02/09/1999 |
| 5773463 | Indane and tetrahydronaphthalene derivatives as calcium channel antagonists This invention describes the use of aminoindane and amino-tetrahydronaphthalene derivatives of general formula (I) ##STR1## in which Ar, X, R1, R2 and n are defined in claim 1, for the manufacture of a medicament for the treatme... | 06/30/1998 |
| 5612381 | 1,2-ethanediol derivative and salt thereof process for producing the same, and cerebral function-improving agent comprising the same This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebro... | 03/18/1997 |
| 5578252 | Photochromic substituted naphthopyran compounds Described are novel reversible photochromic 3H-naphtho[2,1-b]pyran compounds, examples of which are substituted with an oxy-bearing substituent at the number 8 carbon atom and with either an alkyl group at the number 7 carbon atom or with a carbonyl beari... | 11/26/1996 |
| 5569669 | Alkylaminoindane compounds The invention relates to a compound selected from those of formula (I): ##STR1## in which R1, R2, R2', R2", R2'", R3 and n are as defined in the description, an optical isomer, and an addit... | 10/29/1996 |
| 5569640 | Substituted 1,3-benzadioxane-4-ones and 1,3-benzathioxane-4-ones, their preparation and their conversion to crop protection agents Cyclic acetals of the formula I ##STR1## where the substituents have the following meanings: R1 and R2 are hydrogen, unsubstituted or substituted alkyl or phenyl; additionally R1 and R2 together are an unsu... | 10/29/1996 |
| 5514588 | Surfactant-nutrients for bioremediation of hydrocarbon contaminated soils and water The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a composition comprising a phosphorous source, a diluent and a compound or mixtures thereof represented by the structura... | 05/07/1996 |
| 5475132 | Antifungal agents based on amides containing a phenyl group R3, R4 and R5, each represents a hydrogen or halogen atom (at least one of R3, R4 and R5 being other than hydrogen or halogen); optionally substituted amino; optionally halogenated or hydro... | 12/12/1995 |
| 5472984 | 1,2-ethanediol derivative and salt thereof and cerebral function-improving agent comprising the same This invention relates to a 1,2-ethanediol derivative and a salt thereof, a process for producing the same, and a cerebral function-improving agent comprising the same. The cerebral function-improving agent of this invention is useful for treating cerebro... | 12/05/1995 |
| 5440051 | Process for the -chlorination of aryl ethers Aryl ethers are chlorinated in the -position by a process in which they are metered into a reaction vessel at the same time as chlorine, the reaction being carried out at temperatures in the range from 60° to 150° C.... | 08/08/1995 |
| 5420333 | Lignan analogues, methods of preparation thereof and anti-hyperlipemic agents An anti-hyperlipemic agent which has a potent activity of reducing LDL and VLDL cholesterols, which are thought to be a risk factor for arteriosclerosis among total blood cholesterols, and which is excellent in the antioxidant activity on LDL, is provided... | 05/30/1995 |
| 5420273 | Condensed heterocyclic compounds The invention relates to compounds of the formula ##STR1## wherein R1 is hydrogen, acyl, lower-alkyl or --CHO, --CH2 OR10, --COR7 or OR13 ; R2, R3 and R4 are, ind... | 05/30/1995 |
| 5360815 | Heteroaryl cinnamic acids as inhibitors of leukotriene biosynthesis Compounds having the formula I: ##STR1## are inhibitors of leukotriene biosynthesis. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents. They are also useful in treating angina, cerebral spasm, ... | 11/01/1994 |
| 5356924 | Pesticidal benzodioxole Compounds of the general formula: ##STR1## wherein R1 and R2 each independently represents a halogen atom or an alkyl, alkoxy, haloalkyl, haloalkoxy, alkoxycarbonyl, alkenoxy, cyano or nitro group; R3 and R4 | 10/18/1994 |
| 5312831 | Urethanes and ureas that induce cytokine production The invention relates to novel ureas and urethanes of Formula I: ##STR1## which stimulate cytokine production and may be used to accelerate recovery from neutropenia accompanying radio- or chemotherapy, bone marrow transplantation, or infections. Com... | 05/17/1994 |
| 5292748 | Process for the production of substituted vinylbenzenes A process for the production of substituted vinylbenzenes of the general formula: ##STR1## wherein R is a lower alkyl group having 1 to 4 C atoms, R1 is hydrogen or an acetyl group and R2 is hydrogen, a lower alkyl group ha... | 03/08/1994 |
| 5274176 | Process for the production of substituted vinylbenzenes A process for the production of substituted vinylbenzenes of the general formula: ##STR1## wherein R is a lower alkyl group having 1 to 4 C atoms, R1 is hydrogen or an acetyl group and R2 is hydrogen, a lower alkyl group ha... | 12/28/1993 |