Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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 |
| 7339081 | Route to prepare 4-bromo-1-oxypentafluorosulfanylbenzene A process for preparing bromo-1-oxypentafluorosulfanylbenzene is provided, the process including the step of brominating pentafluorosulfanyloxybenzene with a bromination agent to provide the bromo-1-oxypentafluorosulfanylbenzene. The process is more effective than p... | 03/04/2008 |
| 6479519 | Substituted anilides The invention is directed to physiologically active compounds of formula (I): ##STR1## wherein: R1 is hydrogen, halogen, hydroxy, lower alkyl or lower alkoxy; X1, X2 and X6 independently represent N or CR10 | 11/12/2002 |
| 6379590 | Method for making unsymmetrically substituted fluorenyl compounds for nonlinear optical applications A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D ##STR1## wherein A' is se... | 04/30/2002 |
| 6207838 | Electrochemically generated organothiating reagents and their use Electrolysis of organic disulfides in liquid sulfur dioxide is used to obtain organothiating agents, which can then be reacted with appropriate substrates to effect the synthesis of organothioaromatic compounds efficiently and in high yields. With appropr... | 03/27/2001 |
| 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 |
| 5840991 | Antiatherosclerosis agents for lipid-lowering and antiperoxidative activity The invention relates to novel compounds of formula (I) ##STR1## wherein R1 represents hydrogen, hydroxy or alkoxy; R2, R3, R4 and R5 may be hydrogen or alkyl; and n is 0,1 or 2; and the pharmaceutically a... | 11/24/1998 |
| 5798396 | Sulfonium salt-containing compounds and initiators of polymerization The present invention is directed to sulfonium salt-containing compounds represented by a following general formula; ##STR1## wherein R1 is alkyl containing from 1 to 18 carbon atoms, hydroxy, alkoxy containing from 1 to 18 carbon atoms, a... | 08/25/1998 |
| 5534557 | Onium salt, photopolymerization initiator, energy ray-curing composition containing the initiator, and cured product The composition of the present invention is excellent in compatibility, transparency and curability and give a cured coat of excellent gloss and of less smell, and cured products of excellent properties can be obtained by curing the composition. The prese... | 07/09/1996 |
| 5464866 | Substituted hydrindanes for the treatment of angiogenesis-dependent diseases Substituted hydrindanes and their use in controlling angiogenesis-dependent diseases in warm blooded animals are disclosed.... | 11/07/1995 |
| 5463138 | Process for preparing difluoromethoxyarenes and difluoromethylthioarenes Difluoromethoxyarenes and difluoromethylthioarenes of the general formula (I), Ar--Q--CHF2 (I) in which Ar represents optionally substituted aryl, and Q represents oxygen or sulphur, (which can be used as interme... | 10/31/1995 |
| 5446186 | Structure and synthesis of nitrophenyl-EGTA, a caged calcium, intermediates thereof and a method of producing a high photochemical yield of liberated calcium The synthesis and compound of a new caged calcium which is an ortho-nitrophenyl derivative of EGTA and various intermediates. It is synthesized in ten steps and 24% overall yield. The photosensitive chelator, nitrophenyl-EGTA, has a Kd for Ca | 08/29/1995 |
| 5393776 | Tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia This invention relates to structurally novel acyclic tocotrienol analogs, which are useful for cholesterol/lipid lowering in cases of hypercholesterolemia and hyperlipidemia, and for atherosclerosis. Also provided are pharmaceutical compositions and a met... | 02/28/1995 |
| 5274002 | Trisubstituted phenyl analogs having activity for congestive heart failure Novel trisubstituted phenyl analogs are now found to have activity as for the treatment of congestive heart failure.... | 12/28/1993 |
| 5225606 | Alk-1-enyl ethers This invention relates to the alk-1-enyl ether reaction product of a hydroxylated compound and an alk-1-enyloxy oxirane containing from 0 to 95% alkyl epoxide.... | 07/06/1993 |
| 5220037 | Sulfonium salts and use thereof Novel sulfonium salts useful as photoinitiators for cationic polymerization and for producing relief patterns and relief images have the general formula (I) ##STR1## where A.crclbar. is a non-nucleophilic counterion, x is 1, 2 or 3, R is a... | 06/15/1993 |
| 5104559 | Hydrogen perfluoroalkylaromatic ethers and related compositions and methods A lubricating compound having the structure: R1 --Rf --O--Ar--R2 wherein R1 is a monovalent radical selected from the group consisting of fluoride, unsubstituted aryloxys, substituted aryloxys, unsubstituted arylthio... | 04/14/1992 |
| 5087724 | Substituted benzenes useful as intermediates A process for producing a 4-benzoyl-5-hydroxylpyrazole of the formula III: ##STR1## which comprises reacting carbon monoxide and a 5-hydroxypyrazole of the formula II: ##STR2## with a substituted benzene of the formula I: ##STR3## in t... | 02/11/1992 |
| 5084214 | Phenolic thioethers, and their production and use Phenolic thioethers of the formula: ##STR1## wherein R is a hydrogen atom or a protective group for carboxyl, X is a straight or branched C4 -C15 alkylene group, a straight or branched C1 -C15 alkylene grou... | 01/28/1992 |
| 4933377 | Novel sulfonium salts and the use thereof as photoinitiators Sulfonium and oxysulfonium salts, useful as photoinitiators, have directly attached to the sulfur atom thereof: at least one aromatic or heterocyclic aromatic substituent containing at least 14 aromatic atoms and having a removable positive hydrogen ion, said ... | 06/12/1990 |
| 4837364 | Processes for preparing pentafluoroethoxy- and pentafluoroethylthiobenzene drivatives A process for the preparation of (pentafluoroethoxy)- and (pentafluoroethylthio)benzene derivatives either from phenol, thiophenol or from halobenzene. A halobenzene is reacted with trifluoroethanol or a phenol or a thiophenol is reacted with a compound o... | 06/06/1989 |
| 4816596 | Process for preparing trifluoroethoxybenzene or trifluoroethylthiobenzene A process for preparing substituted or unsubstituted trifluoroethoxy- or trifluoroethylthiobenzenes by reaction of a phenol or thiophenol, both of which may be substituted or unsubstituted, with a compound of the formula CF3 --CH2 --... | 03/28/1989 |
| 4792633 | Preparation of ortho-(alkyl- or arylthio)phenols Strong acids, e.g., aluminosilicates and sulfonic acids are employed as catalysts for the (alkyl or aryl)thiolation of phenols using dialkyl or diaryl disulfides and/or (alkyl- or arylthio)phenols as thiolating agents, and for the isomerization of (alkyl-... | 12/20/1988 |
| 4700006 | Carbamoylimidazole derivatives Novel carbamoylimidazole derivatives of the formula (I) ##STR1## in which R1 represents lower alkyl, lower alkoxy-lower alkyl or cycloalkyl having 3 to 8 carbon atoms, R2 represents fluoro-substituted lower alkyl, X represents oxygen... | 10/13/1987 |
| 4695657 | Process for preparing compounds containing a difluoromethylene group in a position to an oxygen atom A process for the preparation of compounds containing a difluoromethylene group in a position to an oxygen atom. An alcohol or a phenol is brought into contact with trifluoroacetic acid or a halide or anhydride thereof in anhydrous liquid hydroflu... | 09/22/1987 |
| 4602113 | (Hydrocarbylthio) phenols and their preparation (Hydrocarbylthio)phenols containing hydrocarbylthio groups in either or both of the meta positions, relative to the hydroxy group, on a phenolic ring are prepared by reacting phenolic compounds with an excess of hydrocarbyl disulfide in the presence of ca... | 07/22/1986 |
| 4599451 | Process for preparing ortho-(alkylthio)phenols The process of the invention involves reacting a phenol with a dialkyl disulfide in the presence of a zirconium phenoxide catalyst to prepare the corresponding ortho-(alkylthio)phenol.... | 07/08/1986 |
| 4565859 | Polyether compounds, epoxy resins, epoxy resin compositions, and processes for production thereof A polyether compound having ether groups and vinyl double bonds represented by formula (I) ##STR1## wherein R1 represents a residue of an organic compound having l active hydrogen atoms, n1 through nl each represents ... | 01/21/1986 |
| 4547593 | Preparation of (hydrocarbylthio)phenols (Hydrocarbylthio)phenols, such as 2-(alkylthio)phenols, are prepared by heating one or more (hydrocarbylthio)phenols selected from 2-, 3-, 4-, and poly(hydrocarbylthio)phenols in the presence of a catalytic amount of an aluminum phenoxide to redistribute ... | 10/15/1985 |
| 4533753 | (Hydrocarbylthio)phenols and their preparation (Hydrocarbylthio)phenols containing at least two hydrocarbylthio groups on a phenolic ring are prepared by reacting phenolic compounds with an excess of hydrocarbyl disulfide in the presence of catalytic amounts of an aluminum phenoxide. Novel and useful ... | 08/06/1985 |
| 4528384 | Addition polymerizable aromatic sulfonium salts and polymers thereof Novel polymers having high activity as cationic surface-active agents are prepared by the addition polymerization of ethylenically unsaturated aromatic sulfonium salts, e.g., ##STR1## When such polymers are heated and/or dried, they are irreversibly ... | 07/09/1985 |
| 4358616 | Process for the preparation of alkylthiomethylphenols and arylthiomethylphenols The present invention provides a process for the preparation of an alkylthiomethylphenol or arylthiomethylphenol of the general formula ##STR1## in which m, n, R and R1 have the meaning mentioned in the specification, in which a hydroxymet... | 11/09/1982 |
| 4330462 | Stabilized polyester composition There is disclosed a method for the stabilization of polyester resins by incorporating in the resins certain types of 4-mercaptophenol derivatives.... | 05/18/1982 |
| 4324920 | Process for the preparation of ortho-(hydrocarbylthio)-phenols Disclosed is a process for the preparation of otho-(hydrocarbylthio)-phenols, having at least one hydrogen on a carbon atom ortho to a hydroxy group, with hydrocarbyl disulfides in the presence of catalytic amounts of aluminum phenoxide.... | 04/13/1982 |
| 4229470 | Compounds having a trichloromethylic end group having a juvenile hormone action on insects and acaricide activity Compounds are disclosed which have a juvenile hormone action on insects and also exhibit acaricide action. Said compounds are unsaturated aliphatic compounds having a trichloromethyl end group and the other end group of which is a phenol group which may b... | 10/21/1980 |
| 4192949 | Preparation of aralkyl phenyl ethers and alkyl phenyl ethers Phenol ethers are prepared by reacting phenols with dialkyl carbonates in the presence of tertiary amines and/or phosphines. The aralkyl aryl ethers and alkyl aryl ethers obtained are starting materials for the manufacture of dyes, crop protection agents ... | 03/11/1980 |
| 4143076 | Mercapto phenolic and alkylthio phenolic antioxidants 2-Mercapto phenol and/or 4-mercapto phenol are reacted with a compound selected from olefins, alcohols, and organic halides for example, styrene and isobutylene, to form (hydrocarbyl) thio phenolic antioxidants such as 2,6-di-tert. butyl-4-(tert.butylthio... | 03/06/1979 |
| 4140794 | Compounds having a trichloromethylic end group having a juvenile hormone action on insects and acaricide activity New compounds are disclosed which have a juvenile hormone action on insects and also exhibit acaricide action. More particularly, said new compounds are unsaturated aliphatic compounds having a trichloromethyl end group and the other end group of which is... | 02/20/1979 |
| 4128530 | Mercapto phenolic and alkylthio phenolic antioxidants 2-Mercapto phenol and/or 4-mercapto phenol are reacted with compounds containing olefinic unsaturation, for example, styrene and isobutylene, to form alkylthio phenolic antioxidants such as 2,6-di-tert.butyl-4-(tert.butylthio) phenol and 2,6-di(... | 12/05/1978 |
| 4120866 | Preparation of arylsulphonium salts A process for the production of an arylsulphonium salt, comprising reacting an aromatic compound of the formula in which Ar is an aromatic radical with a sulphoxide of the formula ##STR1## in which R1 and R2 each independently is an ... | 10/17/1978 |
| 4005148 | Derivatives of propargyl or alkenyl phenyl ether and use thereof as acaricide A new compound of the formula ##STR1## wherein X represents methyl group or chlorine atom, Y represents a lower alkyl group having from 1 to 6 carbon atoms or allyl group, R represents propargyl group or an alkenyl group having from 3 to 18 carbon at... | 01/25/1977 |