Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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 |
| 6787132 | Combined chemo-immunotherapy with liposomal drugs and cytokines A method of antitumor therapy is described in which administration of a chemotherapeutic drug, encapsulated in liposomes, is supplemented by administration of an immunostimulating cytokine. The cytokine is preferably also encapsulated in liposomes. In tumor models f... | 09/07/2004 |
| 6436972 | Pyridones and their use as modulators of serine hydrolase enzymes This invention relates to a compound of formula I: ##STR1## or a pharmaceutically acceptable salt thereof; in which preferably R3, R4 and R6 are each hydrogen; X is C.dbd.O or CH2 ; and R7 and R8 | 08/20/2002 |
| 6426416 | Anthraquinone and condensed anthraquinone colorants having sulfonamido linked poly (oxyalkylene) moieties and their preparation The process for chemically modifying metal-free, colored anthraquinone or condensed anthraquinone compounds or the compounds prepared by said process for improving one or more properties thereof such as water dispersibility, compatibility with other organ... | 07/30/2002 |
| 5914401 | Methods for the manufacture of quinolone carboxylic acids derivatives and intermediates thereof Novel process for the preparation of quinolone carboxylic acid derivatives of general formula I, and intermediates thereof as illustrated in Scheme 1 wherein the key intermediate is a compound of formula IX. ##STR1##... | 06/22/1999 |
| 5432173 | 1-amidooctahydropyrido[2,1,-C][1,4]oxazine compounds The invention relates to the compounds of general formula (I): ##STR1## in which R1, R2, R3, R4, R5 and A are as defined in the description. their isomers, diastereoisomers, and enantiomers as well as... | 07/11/1995 |
| 5320678 | Process for producing 4,4'-diamino-1,1,'-dianthraquinonyl pigments A desulfonation reaction mixture of 4,4'-diamino-1,1'-dianthraquinonyl-3,3'-disulfonic acid obtainable in a conventional manner is mixed in the form of an aqueous acid suspension with a surface active agent, followed by filtration, whereby filterability ... | 06/14/1994 |
| 5319074 | Bifunctional reactive dyestuffs containing vinylsulphone or alkylsulphone groups and a 2,4 difluoro pyrimidine group A metal-free dyestuff of the formula ##STR1## and metal complex thereof wherein: Fb=the radical of a dyestuff selected from the group consisting of mono- or polyazo, anthraquinone, phthalocyanine, formazan, dioxazine and triphenylmethane radicals, B ... | 06/07/1994 |
| 5039683 | Azetidinyl quinolone carboxylic acids and esters Compounds of the formula ##STR1## wherein R1 is hydrogen, alkyl of 1 to 6 carbon atoms, or NR4 R5, wherein R4 and R5 are independently selected from hydrogen and alkyl of 1 to 6 carbon atoms or a... | 08/13/1991 |
| 4741765 | Herbicidal sulfonamides Benzenesulfonamide compounds such as N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-1,4-dihydro-3-methyl-4 -oxo-1-phenyl-indeno[1,2-C]pyrazole-5-sulfonamide and N-[(4-methoxy-6-methyl-pyrimidin-2-yl)aminocarbonyl]-1,4-dihydro-3-methyl- 4-oxo-1-phe... | 05/03/1988 |
| 4569997 | Polyalkylpiperidine compounds By reacting compounds of the formula ##STR1## with diisocyanates or triisocyanates of the formula R4 (NCO)n at a low temperature, the corresponding 1-carbamyl compounds of the formula I ##STR2## in which n is 2 or 3 and R | 02/11/1986 |
| 4374966 | Process for the manufacture of vinyl chloride polymers by coating polymerization vessels A process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in a reactor in which the internal walls, and the other parts on which polymer deposits can form, have a covering which contains a representative ... | 02/22/1983 |
| 4329456 | Process for the preparation of vat dyes The present invention relates to a process for the preparation of vat dyes of the formula ##STR1## in which A is a vattable radical, X is an acyl radical and Y' is a halogen atom, an amino group or an aryloxy group, which comprises acylating com... | 05/11/1982 |
| 3959286 | N-(1-(1,3-D ihydro-1,3-dioxo-2H-benz(de)-isoquinolin-2-yl)alkyl)-4-N-piperidinyl)-n-p henylalkylamides Compounds of the following formula and their acid addition salts ##SPC1## Wherein R1 and R2 are independently selected from hydrogen, halogen, lower alkyl, lower alkoxy, lower alkylthio, nitro, cyano, amino and trifluoromethyl; A is ... | 05/25/1976 |
