Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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 |
| 7339083 | Catalytic method of producing alkyl mercaptans by adding hydrogen sulphide to an olefin The process for preparing a mercaptan from an olefin and hydrogen sulphide is carried out in the presence of hydrogen and a catalyst composition comprising a strong acid, such as a heteropolyacid, and at least one metal belonging to group VIII of the Periodic Table.... | 03/04/2008 |
| 7217843 | Method of making 2-thiols A process for selectively making 2-thiols from alpha olefins is described. The process includes contacting a linear or branched alpha olefin having with H2S in the presence of a catalyst and recovering the 2-thiol from a product mixture. The catalyst incl... | 05/15/2007 |
| 7193114 | Extraction of metals by mercaptans attached to silica gel by azeotropic distillation The present invention attaches a molecule that contains a hydroxyl group (OH) attached to a carbon chain which is attached to a coordinating atom or atoms, the acidity of which is greater than that of silica (i.e., pKA | 03/20/2007 |
| 7173156 | Thioacetate deprotection A method of thioacetate deprotection by providing a compound of the formula R1—S—CO—R2, and reacting the compound with a quaternary ammonium cyanide salt in the presence of a protic solvent in an inert atmosphere to convert the compound t... | 02/06/2007 |
| 6562988 | Methods and products relating to 16-HETE analogs The present invention includes 16-HETE analogs which are agonists and antagonists of 16-HETE. The compositions may be formulated in pharmaceutically acceptable formulations. The invention also includes methods and products for inhibiting neutrophil adhesi... | 05/13/2003 |
| 6410793 | Production of formaldehyde from carbon oxides and H2S A method wherein a gas stream containing carbon oxide and hydrogen sulfide is first passed in contact with a catalyst comprising a supported metal oxide of a metal selected from the group consisting of vanadium (V), niobium (Nb), molybdenum (Mo), chromium... | 06/25/2002 |
| 6248687 | Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter Presulfurizing process and presulfurization promoter for a desulfurization catalyst to be used in a hydrodesulfurization unit of petroleum refinery of high molecular hydrocarbons, in which fresh metal oxide in said desulfurization catalyst is sulfurized w... | 06/19/2001 |
| 6162952 | Production of mercaptans using heterogeneous acidic catalysts Disclosed is a method of making a mercaptan by reacting hydrogen sulfide with an olefin in the presence of a heterogeneous acidic catalyst. The catalyst can be made by calcining a mixture of a hydroxide, such as Zr(OH)4 or Ti(OH)4, w... | 12/19/2000 |
| 6054623 | Hydroxythiol grignard reaction synthesis A method for the preparation of hydroxythiol compounds by reacting a hydroxyl-protected halide compound having the structure: X--R--OPg with magnesium in a Grignard-suitable solvent to form a hydroxyl-protected magnesium halide compound, wherein R is selected ... | 04/25/2000 |
| 5969191 | Production of formaldehyde from methyl mercaptans A method wherein a gas stream containing a methyl mercaptan is passed in contact with a catalyst comprising a supported metal oxide or a bulk metal oxide in the presence of an oxidizing agent and for a time sufficient to convert at least a portion of the ... | 10/19/1999 |
| 5728887 | Catalytic hydrogenolysis of organic thiocyanates and disulfides to thiols A process for the preparation of a thiol comprising reacting hydrogen with a thiocyanate or disulfide wherein the reaction with thiocyanate is conducted in the presence of a catalyst comprising a Group VIII metal or a mixture thereof; and the reaction wit... | 03/17/1998 |
| 5712357 | Method for metathetically preparing sulphur containing polymers or organic compounds A process for the preparation of organic compounds or polymers containing one or more sulphur atoms and including one or more double bonds in a hydrocarbon chain is described. An acyclic sulphur-containing olefin or an unsaturated sulphur-containing cycli... | 01/27/1998 |
| 5675029 | Cyclic process for activation, use and recovery of phase-transfer catalysts A process of making certain compounds using a phase transfer catalyst that permits the recovery and recycle of the phase transfer catalyst.... | 10/07/1997 |
| 5493058 | Synthesis of methyl mercaptan from dimethyl disulphide The invention relates to the manufacture of methyl mercaptan by catalytic hydrogenation of dimethyl disulphide on a catalyst based on sulphide(s) of at least one transition metal. The selectivity with respect to methyl mercaptan is considerably improved b... | 02/20/1996 |
| 5352758 | Mercapto compound, its preparation process, and sulfur-containing urethane resins and lenses using the same A mercapto compound represented by the following formula (1): ##STR1## is obtained by reacting, in the presence of a mineral acid, thiourea with a compound represented by the following formula (2): ##STR2## wherein X means a hydroxyl group or a ... | 10/04/1994 |
| 5352812 | Metathesis of acyclic olefins using an iridium/silver catalyst composition The metathesis of functionalized and unfunctionalized acyclic olefins using catalyst compositions containing iridium and silver in a molar ration of 3 to 1.... | 10/04/1994 |
| 5336812 | Method of making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane A process for making 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane via the acid catalyzed reaction of phenol and 3,3,5-trimethylcyclohexanone containing an organic thiol co-catalyst is described wherein the organic thiol is rejuvenated by treatment... | 08/09/1994 |
| 5312992 | Process for removing sulfur from organic sulfides A process for removing sulfur from an organic sulfide containing three or more chemically bound sulfur atoms is disclosed wherein said sulfide is contacted with a defined catalyst at elevated temperature to increase the disproportionation rate and the cor... | 05/17/1994 |
| 5283312 | Mercapto compound, its preparation process, and sulfur-containing urethane resins and lenses using the same A mercapto compound represented by the following formula (1): ##STR1## is obtained by reacting, in the presence of a mineral acid, thiourea with a compound represented by the following formula (2): wherein X means a hydroxyl group or a chlorine or b... | 02/01/1994 |
| 5276147 | Compounds and complexes useful in medical imaging The subject of the present invention is compounds which correspond to the following general formula: ##STR1## in which R1 and R3 independently of one another represent H, an alkyl, alkenyl, cycloalkyl, aryl, arylalkyl or an alky... | 01/04/1994 |
| 5032380 | Detection of sulfur mustards using spectrofluorometry Fluorescence properties of the product of the reaction of the 2-naphthalenethiolate ion and 2-chloroethylethylsulfide or bis(2-chloroethyl)sulfide are described. The fluorescence of the latter reaction is used as the basis of a new detection method for ... | 07/16/1991 |
| 5024847 | Sulfur containing acyclic terpenes This invention provides oxygen or sulfur containing compounds possessing fruity, floral, or woody odors. These compounds may be used to fragrance or flavor a variety of consumer products such as tobacco products, foodstuffs, beverages, gums, mouthwashes, ... | 06/18/1991 |
| 4822938 | Processes for converting methane to higher molecular weight hydrocarbons via sulfur-containing intermediates There is provided a process for converting methane to higher molecular weight hydrocarbons. In a first step, methane is contacted with elemental sulfur under conditions sufficient to produce carbon disulfide. Carbon disulfide from this step is then contac... | 04/18/1989 |
| 4822918 | Reduction of organic sulfur compounds Organic sulfur compounds, such as sulfonic acids, sulfonyl halides, sulfonates, sulfonamides, sulfonic acid anhydrides, sulfones, sulfoxides and/or disulfanes, are reduced by a method in which the sulfur compound in the liquid or gas phase is reacted with... | 04/18/1989 |
| 4801719 | Silanes, process for their preparation, and their use Compounds of the formula Ia ##STR1## in which X and R1 to R6 are as defined in the claims, are obtainable by reacting monochlorosilanes of the formula II ##STR2## with tetrasubstituted ethylenes of the formula III ##ST... | 01/31/1989 |
| 4777289 | Process for the preparation of alkylthioalkanoate salts A process for the preparation of alkylthioalkanoate salts by reaction of an alkali metal alkylmercaptide with a lactone in the presence of an aprotic polar organic solvent. Preferably, the alkali metal mercaptide is prepared by reaction of an alkylmercapt... | 10/11/1988 |
| 4767884 | Reduction of sulfonic acid to thiol A sulfonic acid is reduced to a thiol by heating the acid under carbon monoxide pressure in the presence of a rhodium carbonyl catalyst.... | 08/30/1988 |
| 4680410 | Preparation of N- and S-1,2-ethylenically unsaturated organic compounds The invention is a process for the preparation of a N- or S-1,2-ethylenically unsaturated organic compound which comprises (a) contacting a N- or S-silylated organic compound with an aldehyde, wherein the aldehyde has a hydrogen atom bonded to the carbon adjac... | 07/14/1987 |
| 4640789 | Ore flotation and flotation agents for use therein Ammonium dialkylaminoalkyl (thiocarbonyldithio) alkanoates, alkali metal dialkylaminoalkyl (thiocarbonyldithio) alkanoates, their use as flotation agents, and a process for the production of these novel compositions are disclosed. N,N-dialkylaminoalkyl me... | 02/03/1987 |
| 4560803 | Catalysts and process for oxidation of olefins to ketones An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidation of the olefin in the presence of molecular oxygen and water vapor employing a heterogeneous catalyst comprising rhenium compounds and complexes, op... | 12/24/1985 |
| 4560805 | Catalysts and process for the conversion of olefins to ketones An improved process is provided for forming ketones from the corresponding olefins in the vapor phase in the presence of water vapor employing a heterogeneous catalyst comprising rhenium compounds and complexes, optionally containing at least one metal co... | 12/24/1985 |
| 4560804 | Catalytic process for the manufacture of ketones An improved process is provided for forming ketones from the corresponding olefins by vapor phase oxidation of the olefin in the presence of water vapor, and optionally in the additional presence of molecular oxygen employing a heterogeneous catalyst comp... | 12/24/1985 |
| 4528401 | Catalytic process for the manufacture of ketones An improved process is provided for forming ketones from the corresponding olefins in the vapor phase in the presence of water vapor employing a heterogeneous catalyst comprising a molybdenum disulfide catalyst formed by the thermal decomposition of a thi... | 07/09/1985 |
| 4515687 | Ore flotation and flotation agents for use therein Ammonium dialkylaminoalkyl (thiocarbonyldithio) alkanoates, alkali metal dialkylaminoalkyl (thiocarbonyldithio) alkanoates, their use as flotation agents, and a process for the production of these novel compositions are disclosed. N,N-dialkylaminoalkyl me... | 05/07/1985 |
| 4514293 | Ore flotation and flotation agents for use therein Ammonium N-carboxyalkyl-S-carboalkoxy dithiocarbamates, alkali metal N-carboxyalkyl-S-carboalkoxy dithiocarbamates, their use as flotation agents, and a process for the production of these novel compositions are disclosed.... | 04/30/1985 |
| 4493938 | Method for the production of thioalkylene glycols This invention is concerned with a method for the production of thioalkylene glycols by using the reaction solvent containing mainly the thioalkylene glycol, the product of the reaction of alkylene oxide and hydrogen sulfide, without using any other speci... | 01/15/1985 |
| 4482744 | Methanol conversion process A process is provided wherein methanol is converted over spent shale to products such as mercaptans, disulfides and ethylene.... | 11/13/1984 |
| 4449006 | Preparation of methyl mercaptan from carbon oxides A process is provided for the manufacture of methyl mercaptan with substantial reduction of by-product methane by intimate mixture of carbon oxide, sulfur or hydrogen sulfide and hydrogen at elevated temperature and pressure with a single-phase, solid cat... | 05/15/1984 |
| 4440961 | Branched chain olefinic alcohols, thiols, esters and ethers, organoleptic uses thereof, processes for preparing same and intermediates therefor Described are compounds defined according to the structure: ##STR1## taken alone or in admixture wherein one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines are carbon-carbon single bonds; wherein R1 | 04/03/1984 |
| 4375005 | Branched chain olefinic alcohols, thiols, esters and ethers, organoleptic uses thereof, processes for preparing same and intermediates therefor Described are compounds defined according to the structure: ##STR1## taken alone or in admixture wherein one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines are carbon-carbon single bonds; wherein R1 | 02/22/1983 |
