A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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 |
| 4456691 | Antigen for PCB, antibody raised by same, and method of making same A polychlorinated biphenyl hapten is covalently bonded to a macromolecule carrier through a diazo-containing linking group. In forming the conjugate, a PCB hapten is nitrated, aminated, diazotized and finally coupled with the macromolecule carrier. The an... | 06/26/1984 |
| 4427780 | Method for assaying vitamin-containing compositions for vitamin analogues Vitamin-containing multicomponent compositions are assayed to determine the extent of conversion of the vitamin to one or more analogues thereof due to interaction between the vitamin and the other components of the composition, employing a radioactive la... | 01/24/1984 |
| 4407965 | Process for preparing antibody A process for preparing a gut glucagon antigen composed of a peptide-carrier complex is disclosed, which comprises using as hapten a peptide represented by the following general formula; wherein R represents a hydrogen atom, an amino acid group or a peptide ... | 10/04/1983 |
| 4383984 | Tolyl isocyanate and toluene diisocyanate test antigens, methods for their preparation and use in detecting diisocyanates and antibodies to diisocyanates An antigen and a method for its preparation and use in detecting antibody to a selected diisocyanate is provided by reacting the monoisocyanate derivative of the diisocyanate or the diisocyanate with a protein, incubating the antigen on a paper disc with ... | 05/17/1983 |
| 4379780 | 17 -Dihydroequilin hapten and assay method A hapten is obtained by replacing the 3-hydroxy group of 17 -dihydroequilin with HO--CO--A--O-- wherein A is an alkylene of one to six carbon atoms. The hapten is conjugated with an immunological carrier to provide an immunogen, which in turn produ... | 04/12/1983 |
| 4379779 | Equilin hapten and assay method A hapten is obtained by replacing the 3-hydroxy group of equilin with HO--CO--A--O-- wherein A is an alkylene of one to six carbon atoms. The hapten is conjugated with an immunological carrier to provide an immunogen, which in turn produces a specific ant... | 04/12/1983 |
| 4347178 | Compounds and methods of making A radioimmunoassay procedure has been discovered for bupropion [(b1;)-2-t-butylamino-3-chloropropiophenone], an antidepressant compound, in biological fluids. Novel compounds of formula ##STR1## wherein either R2 is oxygen and R1 | 08/31/1982 |
| 4347176 | Compounds and methods of making same A radioimmunoassay procedure has been discovered for bupropion [(b1;)-2-t-butylamino-3-chloropropiophenone], an antidepressant compound, in biological fluids. Novel compounds of formula ##STR1## wherein either R2 is oxygen and R1 | 08/31/1982 |
| 4347177 | Compounds and methods of making them A radioimmunoassay procedure has been discovered for bupropion [(b1;)-2-t-butylamino-3-chloropropiophenone], an antidepressant compound, in biological fluids. Novel compounds of formula ##STR1## wherein either R2 is oxygen and R1 | 08/31/1982 |
| 4341758 | Immunochemical assay reagent for the determination of haptens, and assay method therewith Novel immunochemical assay reagents comprising combinations of (A) a carboxyl-containing water-soluble mono-olefinic polymeric compound combined with a hapten or its chemically modified product, or a hapten-supported latex resulting from the chemical link... | 07/27/1982 |
| 4341757 | Stable isotopic immunoassay method employing non-radioactive selenium label There is disclosed a "cold", i.e., non-radioactive (stable) isotope method for the immunoassay of biological compounds. The method uses selenium as the tracer label in compounds which compete in reaction with a conjugating compound and thus yield a soluti... | 07/27/1982 |
| 4331808 | Chemiluminescent naphthalene-1,2-dicarboxylic acid hydrazide-labeled haptens Chemiluminescent-labeled conjugates of the formula: ##STR1## wherein R is hydrogen or straight chain alkyl containing 1-4 carbon atoms, n=2-6 and L(CO-- is a specifically bindable ligand, such as an antigenic protein or polypeptide, a hapten or an an... | 05/25/1982 |
| 4329281 | Hapten compositions Novel hapten compositions consisting of 4-[4-[2-(aminopropyl)]phenyl]butanoic acid and its N-methyl derivative are useful in preparing immunogens which can be respectively employed in the elicitation of antibodies selective to amphetamine and methamphetam... | 05/11/1982 |
| 4309339 | Leucine-rich 3,1-S-2 -glycoprotein, process for isolating it and its use New glycoprotein having the following properties: a sedimentation constant in the ultracentrifuge of 3.1 Sb1;0.2; molecular weight 49,600b1;4,000; electrophoretic mobility in the range of the 댒 -globulins of the human serum; isoelectric r... | 01/05/1982 |
| 4262089 | Theophylline antigens and antibodies Theophylline derivatives are provided for preparing reagents for use in competitive protein binding assays and for use as reagents in competitive protein binding assays. Theophylline is substituted at the 3 position and conjugated to antigens for producti... | 04/14/1981 |
| 4241177 | Propanolol antigen conjugates and antibodies Compounds are provided which can be used in the preparation of reagents useful for quantitatively determining the presence of ଲ-adrenergic blocking agents. These compounds contain a derivative of the blocking agent which is linked to an antigen or e... | 12/23/1980 |
| 4230683 | Hapten conjugated antibody for antibody or antigen detection The present invention encompasses an improved method for detecting antigen or antibody bound to a solid support which involves the reaction of hapten-labeled antibody to the antigen or antibody to be detected followed by reaction of the hapten moiety with... | 10/28/1980 |
| 4182856 | Reagents for use in binding assays to determine diphenylhydantoin Reagents for use in binding assays, particularly immunoassays, to determine diphenylhydantoin and for preparing reagents employed in such assays, including ଲ-galactosyl-umbelliferone-diphenylhydantoin conjugates, diphenylhydantoin immunogens, and N | 01/08/1980 |
| 4133949 | Dicarboxylic acid esters of cardiac glycosides New reactive asymmetrical dicarboxylic acid ester compounds of the formula ##STR1## wherein R1 is an alkyl radical containing up to 3 carbon atoms or is a digoxin or digitoxin residue, R2 and R3, which may be the same ... | 01/09/1979 |
| 4122078 | Antigens and antibodies of catecholamines An antigen consisting essentially of a catecholamine and a protein of polypeptide, wherein the protein or polypeptide is bonded to the phenyl nucleus of the catecholamine.... | 10/24/1978 |
| 4107157 | Barbituric acid antigens and antibodies specific therefor Barbituric acid antigens are prepared by coupling 5- or 5,5-substituted barbituric acid to immunogenic carrier materials. In preferred embodiments, proteins are used as the carrier materials and the coupling is effected by an amide linkage between the 5-s... | 08/15/1978 |
| 4031117 | Testosterone derivatives Testosterone-15 or ଲ-carboxyethyl thioether, 5-, dihydrotestosterone-15 or ଲ-carboxyethyl thioether related compounds and intermediates for preparation thereof. The compounds are conjugated to an immunological protein and ... | 06/21/1977 |
| 4016146 | Phenethylamine antigenic conjugates, their preparation, antibodies, and use Antigenic phenethylamine conjugates are produced by blocking the amine of the phenethylamine hapten with a group, coupling of the phenethylamine to a carrier, and removal of the blocking group. Specific phenethylamines useful in this invention are ampheta... | 04/05/1977 |
| 3996344 | Phenethylamine antigenic conjugates, their preparation, antibodies and use Antigenic phenethylamine conjugates are produced by blocking the amine of the phenethylamine hapten with a group, coupling of the phenethylamine to a carrier, and removal of the blocking group. Specific phenethylamines useful in this invention are ampheta... | 12/07/1976 |