Bizarre Patents
Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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 |
| 4731455 | Process for the preparation of gamma-butyrolactams A process for the preparation of a C(3)-C(4)-transconfigurated γ-butyrolactam of the formula (I) ##STR1## in which R1 represents hydrogen or alkyl, aryl or aralkyl with in each case up to 10 carbon atoms and R2 and R3 | 03/15/1988 |
| 4730050 | Novel enzyme derivatives A derivative of a fibrinolytic enzyme in which the catalytic site on the enzyme which is responsible for fibrinolytic activity is blocked by a human protein attached thereto by way of a reversible linking group.... | 03/08/1988 |
| 4695391 | Modified succinimides (IX) Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides modified by reaction with a compound of the formula: ##STR1##... | 09/22/1987 |
| 4695587 | M-4 and IsoM-4 derivatives, their preparation and compositions containing them Tetrahydro-M-4 and tetrahydro-IsoM-4 hydroxy carboxylic acids of the formula (II): ##STR1## wherein one of R1 and R2 represents a hydrogen atom and the other represents a hydroxy group, and the salts and esters of said acids ... | 09/22/1987 |
| 4692523 | Process for the preparation of 1-substituted aza-cycloalkan-2-ones A process for the preparation of 1-substituted azacycloalkan-2-ones of the formula I ##STR1## in which R, m and n have the meanings indicated by reaction of corresponding 1-trimethylsilylazacycloalkan-2-ones with alkali metal alcoholate or alkal... | 09/08/1987 |
| 4691026 | Self- and hydroxyl reactive formaldehyde-free cyclic hemiamidal and hemiamide ketal crosslinking monomers A compound represented by the following formula: ##STR1## wherein R is a C3 -C24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functio... | 09/01/1987 |
| 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 |
| 4680338 | Bifunctional linker A selective bifunctional sequential linker has the formula wherein Q is a homoaromatic or heteroaromatic ring system; A is a single bond or an unsubstituted or substituted divalent C1-30 bridging group; Y is O or S; and Z is Cl, Br, I, N3... | 07/14/1987 |
| 4668703 | γ-allenyl-γ-aminobutyric acids This invention is for γ-allenyl-γ-aminobutyric acid derivatives which are γ-aminobutyric acid transaminase inhibitors.... | 05/26/1987 |
| 4663334 | Heteroaromatic acetylenes useful as antihypertensive agents Heterocyclic acetylenes of the formula (I): ##STR1## wherein Y is alkyl, alkoxy, alkoxyalkyl, chloro, fluoro, bromo or carboxamidoalkyl and R1 is hydrogen, alkyl, alkoxy, alkylthio, alkoxycarbonyl, chloro, fluoro or dialkylamino, m is 0-2,... | 05/05/1987 |
| 4650608 | Star block copolymer from lactam and polyol and process for the production thereof A novel star block copolymer represented by the general formula as shown below and a process for the production thereof are described. The copolymer has superior physical properties, particularly impact strength and, furthermore, is reduced in coloration.... | 03/17/1987 |
| 4645843 | Process for the preparation of N-arylhalopyrrolid-2-ones Production of N-arylhalopyrrolidones by intramolecular cyclization of an -halogen-N-2-alkenylamide is conducted in the presence of a copper-containing catalyst and a primary or secondary aliphatic amine.... | 02/24/1987 |
| 4632994 | Process for decomposing N-oxide derivatives producing 5-vinyl-2-pyrrolidones New process for preparing olefinic lactams by decomposing the corresponding N,N-dimethyl-N-oxides in a suitable solvent in the presence of a base at a temperature of at least 100° C.... | 12/30/1986 |
| 4621145 | Process for preparing 5-vinyl-2-pyrrolidinone and intermediates therefor 4-Amino-5-hexenoic acid is prepared by: (a) reacting 5-oxo-2-pyrrolidine-acetonitrile with hydrogen and dimethylamine in the presence of a palladium catalyst to form N,N-dimethyl-2-[5'-oxo-2'-pyrrolidine]ethylamine; (b) oxidizing N,N-dimethyl-2-[5'-oxo-2'-pyrr... | 11/04/1986 |
| 4617310 | 5-oxo-2-pyrrolidinepropanoic acid derivatives and use as cognition activators 5-Oxo-2-pyrrolidinepropanoic acids, base addition salts, esters and amides are useful as agents for the reversal of amnesia. Pharmaceutical compositions containing said compounds and methods for using said compositions for treating senility and reversal o... | 10/14/1986 |
| 4602095 | 3-hydroxy-4-alkyloxyphenyl heterocyclic aromatic carboxylates Novel 3-hydroxy-4-alkyloxphenyl heterocyclic aromatic carboxylate compounds particularly well suited as sweeteners in foodstuff.... | 07/22/1986 |
| 4594454 | P-formyl-N,N-dipolyoxyalkylenesubstitutedaniline A compound is provided of the formula: ##STR1## wherein R1 is selected from alkyl, halide, or alkoxy; R2 is selected from H or alkyl; Y is a number of from 2 to about 200; and Z is selected from H or ##STR2## where W i... | 06/10/1986 |
| 4584313 | (Substituted-phenyl)-5-oxo-2-pyrrolidinepropanoic acids and esters thereof, and use for reversing electroconvulsive shock-induced amnesia Certain 5-oxo-3-(unsubstituted-phenyl)- or 5-oxo-3-(substituted phenyl)-2-pyrrolidinepropanoic acids and 5-oxo-ଲ-(unsubstituted-phenyl)- or 5-oxo-ଲ-(substituted-phenyl)-2-pyrrolidinepropanoic acids, their pharmaceutically acceptable ester... | 04/22/1986 |
| 4560767 | N-(2-amino-cycloalkenyl)benzeneacetamide and -benzamide analgesics and tritiated kappa agonists therefrom Amino-cycloalkenyl-amide compounds, e.g., (1,6ଲ)-(&#b1;)-3,4-dichloro-N-methyl-N-(6-(1-pyrrolidinyl)-3-cy clohexen-1-yl)benzeneacetamide, and tritiated derivatives thereof, are useful as analgesics and as radio labeled compounds for pharmacolo... | 12/24/1985 |
| 4552970 | Solvated salts of dinitrophenylcyanamides, and a process for the preparation thereof Compounds of the formula I ##STR1## in which X denotes hydrogen, fluorine, chlorine or bromine, Y and Z denote hydrogen, lower alkyl or lower alkoxy, M denotes sodium, potassium or one equivalent of calcium and L denotes a dipolar aprotic solvent, ar... | 11/12/1985 |
| 4530933 | 8-Aza-13-thiaprostanoids and a method of use thereof as anti-ulcer agents Biologically active 8-aza-13-thiaprostanoids having the formula: ##STR1## wherein A is CH.dbd.CH (cis or trans), C.tbd.C, CH2 CH2, ##STR2## or CHOHCH2 ; R is H, C1 to C12 n-alkyl, branched chain... | 07/23/1985 |
| 4515974 | Process for the preparation of fumaric acid monoesters Fumaric acid monoesters can be prepared by introducing a hydroxyl compound at a rate corresponding to the progress of the reaction into a solution or a melt of maleic anhydride, which may optionally be substituted, if appropriate in the presence of a cis-... | 05/07/1985 |
| 4515628 | Diphenyl ether derivatives and herbicides containing same Novel diphenyl ether hydrazine derivatives, particularly 2-nitro-5 (nucleus-substituted phenoxy) phenylhydrazine derivatives are provided. They are useful as a selective herbicide having a high herbicidal acitivity and residual efficacy.... | 05/07/1985 |
| 4511722 | Process for preparing cyclic N-vinylacylamines Cyclic N-vinylacylamines are prepared by heating carbonic acid esters of cyclic N-2-hydroxyethylacylamines in the presence of a catalytic amount of alkali or alkaline earth metal compound having an alkaline reaction and subsequently distilling the reactio... | 04/16/1985 |
| 4508646 | Process for the preparation of a catalyst useful for anionic lactam polymerization An improved process for the preparation of a lactam-magnesium compound which involves bringing into intimate admixture a lactam monomer represented by the following structural formula: ##STR1## wherein Y is an alkylene group having from 3 to 12 carbo... | 04/02/1985 |
| 4473700 | 2 Or 3-tetradecenyl and poly isobutenyl substituted n-alkyl and n polyamino alkylene pyrrolid-2-ones Disclosed are isomeric polyisobutenyl butyrolactones and lactams thereof useful as dispersants in lubricant oils and having the formulas: ##STR1## wherein R is a hydrocarbyl group having from 12 to 300 carbon atoms; X is O or >N--R', where R' is an a... | 09/25/1984 |
| 4469701 | Pyrrolid-3-en-2-ones and pharmaceutical methods of use thereof Novel compounds having the structural formula ##STR1## wherein R1 and R2 are independently selected from the group consisting of hydrogen, halo, alkyl, haloalkyl, thioalkyl, thiohaloalkyl, alkoxy, cyano and nitro are provided. T... | 09/04/1984 |
| 4461906 | Pyrrolidine 2-one derivatives 1-Substituted-2-pyrrolidinones of the formula ##STR1## wherein one of R1, R2 and R3 represents hydroxy and the remaining substituents represent hydrogen, are capable of counteracting cerebral insufficiency produced experim... | 07/24/1984 |
| 4459411 | Preparation of unsaturated heterocyclic carbonyl-containing compounds Unsaturated heterocyclic carbonyl-containing compounds, e.g., 2H-imidazol-2-ones, 2(3H)-oxazolones and 2H,3H-pyrrol-2-ones, are prepared by the anodic oxidation of saturated heterocyclic carbonyl-containing precursors of the above compounds in a C1-4... | 07/10/1984 |
| 4457940 | Carboxylic acid ester derivatives, process for manufacturing said derivatives, insecticides and acaricides containing said derivatives, and method for killing insects and acarina by treating therewith Novel carboxylic acid ester derivatives, of the formula (I): ##STR1## process for manufacturing said derivatives, insecticides and acaricides containing said derivatives, and a method for killing insects and acarina by treating therewith.... | 07/03/1984 |
| 4452990 | 1-Aroyl-5-oxo-2-pyrrolidinepropanoic acids and related esters 1-Aroyl-5-oxo-2-pyrrolidinepropanoic acids, salts, and esters which are useful as pharmacological agents, especially as agents for the reversal of amnesia, enhancing performance in poorly motivated subjects and treatment of senility and methods for their ... | 06/05/1984 |
| 4450102 | Sulfur based metal cleaners and corrosion inhibitors Novel compositions are provided for the cleaning and inhibiting corrosion of metallic surfaces. The cleaning composition has an active ingredient consisting of at least one sulfur containing compound selected from the group consisting of a bis(N-2 pyrroli... | 05/22/1984 |
| 4443616 | Production of 3-pyrrolin-2-ones Pyrrolidin-2-ones are produced by hydrogenation of 3-pyrrolin-2-ones, which latter compounds could not prior to this invention be easily obtained. These 3-pyrrolin-2-ones with various substituents are produced by ring closure of N-aroylmethyl-acetamides. ... | 04/17/1984 |
| 4438034 | Process for preparing lactam magnesium halides A method of preparing a lactam magnesium halide comprising the steps of: a. reactively admixing magnesium, hydrocarbon halide and lactam in the presence of cyclic ether solvent, wherein the halide is either chloride or bromide; and b. removing the cyclic ether... | 03/20/1984 |
| 4431662 | 1-(1,3-Benzodioxol-5-yl)-2-pyrrolidinone and its medicinal use This invention relates to the compound of formula (I), 1-(1,3-benzodioxol-5-yl)-2-pyrrolidinone, its preparation; its use in medicine for treatment of pain, inflammation and fever; and pharmaceutical formulations containing it. ##STR1##... | 02/14/1984 |
| 4422970 | Method of synthesis of 1-dodecylazacycloheptan-2-one In a method of synthesis of 1-substituted azacycloalkan-2-ones with primary alkyl halides and aralkyl halides as alkylating agents, the improvement comprising carrying out the N-alkylation in the presence of a phase transfer catalyst having the structural... | 12/27/1983 |
| 4415468 | Deodorization of N-vinyl monomers This invention provides deodorized compositions and methods for preparing deodorized compositions comprising at least one odoriferous N-vinyl monomer (e.g., N-vinyl-2-pyrrolidone), and a sufficient deodorizing amount of an alkali metal bisulfite (e.g., Na... | 11/15/1983 |
| 4410726 | Vinylation reaction The present invention relates to an improved method for the vinylation of pyrrolidone with acetylene in the presence of an alkali metal salt of said pyrrolidone as a catalyst, by the addition of between about 0.2 and about 8 weight-%, based on total feed,... | 10/18/1983 |
| 4394156 | Novel N-phenyl-substituted N-heterocyclic compounds, their preparation and use in agents for regulating plant growth The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use. The novel active compounds are saturated and unsaturated 4-me... | 07/19/1983 |
| 4384125 | Process for the purification of 2-pyrrolidone In a distillation process 2-pyrrolidones obtained from succinonitrile are purified by treating the impure liquid pyrrolidone with a strong base, fractionally distilling this product to yield, as distillate, polymerization grade purified 2-pyrrolidone, mix... | 05/17/1983 |
