U.S. patents available from 1976 to present.
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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Assignee: President and Fellows of Harvard College


Location: Cambridge, MA
No. of patents: 755

                    19  
NumberTitleIssue Date
4542096Detecting rearranged human c-myc DNA fragments associated with oncogenes
Rearranged DNA fragments associated with oncogenes are detected by DNA hybridization to a labelled probe comprising DNA fragment subject to rearrangement....
09/17/1985
4490358Screening vaccines and immunization process
Mammals are vaccinated against infectious organisms and polypeptides are screened for utility as vaccines by a complementing set of monoclonal antibodies, the first of which antibodies binds specifically to the site on the organism which itself binds spec...
12/25/1984
4485265Photovoltaic cell
In a photovoltaic cell structure containing a visibly transparent, electrically conductive first layer of metal oxide, and a light-absorbing semiconductive photovoltaic second layer, the improvement comprising a thin layer of transition metal nitride, car...
11/27/1984
4456550Vascular permeability factor
A purified vascular permeability protein factor and method of manufacture, wherein the factor has the following characteristics: (a) in an aqueous solution (0.01 M Na3 PO4, pH 7) whose concentration of NaCl is varied linearly, the factor ...
06/26/1984
4456687Agents for promoting growth of epithelial cells
Certain agents are disclosed which promote growth of epithelial cells, including human epidermal cells. These agents are known to increase the level of cellular cyclic-AMP....
06/26/1984
4452774Isonitrile radionuclide complexes for labelling and imaging agents
A coordination complex of an isonitrile ligand and radionuclide such as Tc, Ru, Co, Pt, Fe, Os, Ir, W, Re, Cr, Mo, Mn, Ni, Rh, Pd, Nb and Ta, is useful as a diagnostic agent for labelling liposomes or vesicles, and selected living cells containing lipid m...
06/05/1984
4435837Pattern recognition and orientation system
A system that automatically scans the shape of a flat object located in a viewing field, recognizes the shape by identifying at least one moment (e.g., the first moment, area; the second moments, products of inertia; or a higher moment), calculates the ce...
03/06/1984
4427653Method of making monoclonal antibodies
Methods featuring, in one aspect, a method of preparing an antigen or mixture of antigens substantially free of antigens specific to at least two monoclonal antibodies, said method involving contacting an antigen mixture with one or more previously-isolat...
01/24/1984
4418149Fused hybrid gene
This invention is a process to produce specific proteins coded for by eukaryotic (or prokaryotic) DNA in bacteria. The invention, which uses recombinant DNA techniques, produces proteins in their natural, functional state unencumbered by extraneous peptid...
11/29/1983
4415660Method of making a cloning vector
A cloning vector useful in recombining DNA (i.e. recombinant DNA studies) is made by mutagenesis of a satellite bacteriophage P4 wt or P4 vir1 and subsequent separation and purification of the mutant progeny in a cesium chloride equilibrium den...
11/15/1983
4415668Cell culture
Improved cell culture microcarriers having controlled amphipathic (hydrophobic and polar) properties and controlled positive charge capacities, which make these microcarriers controllable in size in aqueous or non-aqueous environments and which produce ou...
11/15/1983
4413233Dynamic NMR measurement
Apparatus and method for dynamically measuring a chemical entity in living biological tissue having a physical characteristic capable of fluctuation, the apparatus including an NMR pulse spectrometer capable of providing an observation pulse for instantan...
11/01/1983
4409550NMR Sodium images
Apparatus for producing a sodium NMR image of sodium-containing biological tissue including an NMR pulse spectrometer capable of providing a plurality of simultaneous observation pulses and changing magnetic field gradients in order to produce an image, a...
10/11/1983
4390629Polypeptide degrading enzymes
Proteases derived from E. coli, and a method for preparing a proteinaceous mixture having proteolytic activity....
06/28/1983
4367222Immune globulin specific to Group B streptococci
Culturing Streptococcus agalactiae in a nutrient broth containing at least 10 g/l of glucose while maintaining the pH at 6-8 by the addition of alkaline material produces polysaccharide antigen including a fraction having a molecular size from 8-11×10
01/04/1983
4367221Immunization against Group B streptococci
Culturing Strepococcus agalactiae in a nutrient broth containing at least 10 g/l of glucose while maintaining the pH at 6-8 by the addition of alkaline material produces polysaccharide antigen including a fraction having a molecular size from 8-11×10
01/04/1983
4367223Vaccine against Group B streptococci
Culturing Streptococcus agalactiae in a nutrient broth containing at least 10 g/l of glucose while maintaining the pH at 6-8 by the addition of alkaline material produces polysaccharide antigen including a fraction having a molecular size from 8.varies.11...
01/04/1983
4356263Method of making a polysaccharide vaccine
Culturing Streptococcus agalactiae in a nutrient broth containing at least 10 g/l of glucose while maintaining the pH at 6-8 by the addition of alkaline material produces polysaccharide antigen including a fraction having a molecular size from 8-11×10
10/26/1982
4342748Sleep-promoting factor
Sleep-promoting factor isolated from brains of sleep-deprived animals or from human urine and concentrated using ion-exchange resins....
08/03/1982
4338397Mature protein synthesis
A method is provided for synthesizing within a bacterial host, and secreting through the membrane of the host, a selected mature protein or polypeptide. The method involves: (a) cleaving a cloning vehicle to form a cleavage site after a promoter of either...
07/06/1982
4336336Fused gene and method of making and using same
This invention is a method for fusing, within a bacterial host, a gene for a cytoplasmic protein to a gene for a non-cytoplasmic protein, so that the hybrid protein produced is transported to, near, or beyond the cell surface for ease of collection and pu...
06/22/1982
4332892Protein synthesis
This invention is a process to produce specific proteins coded for by eukaryotic (or prokaryotic) DNA in bacteria. The invention, which uses recombinant DNA techniques, produces proteins in their natural, functional state unencumbered by extraneous peptid...
06/01/1982
4332901Cloning vector
A cloning vector useful in recombining DNA (i.e. recombinant DNA studies) is made by mutagenesis of a satellite bacteriophage P4 wt or P4 vir1 and subsequent separation and purification of the mutant progeny in a cesium chloride equilibrium den...
06/01/1982
4324887Type II group B Streptococci polysaccharide
Culturing Streptococcus agalactiae in a nutrient broth containing at least 10 g/l of glucose while maintaining the pH at 6-8 by the addition of alkaline material produces polysaccharide antigen including a fraction having a molecular size from 8-11×10
04/13/1982
4322537Tertiary amine oxidation and products thereof
Tertiary amines in which at least one group bonded directly to the nitrogen atom is alkyl of 2 to 20 carbon atoms or in which two or more groups bonded directly to the nitrogen atom together are alkylene of 4 to 7 carbon atoms, are oxidized by trihaloacet...
03/30/1982
4318401Percutaneous vascular access portal and catheter
A percutaneous vascular access portal for implantation in a patient for an extended period of time including a cannula having a skirt at its distal end for attaching to the wall of a blood vessel and a flange at the other end to be located near the patien...
03/09/1982
4318301Apparatus for measuring papillary muscle contractility
Apparatus for measuring papillary muscle contractility when subjected to electrical stimulus while immersed in a test bathing liquid includes a test chamber for maintaining the liquid at a controlled temperature and having a membrane for diffusion of oxyg...
03/09/1982
4278761Enzyme assay and kit therefor
Compositions and methods featuring, in one aspect, an enzyme assay in which one of a pair of enzymes is immobilized on an insoluble support, and brought into contact with a solution containing the other enzyme of the pair and the substrates of both enzyme...
07/14/1981
4264737Method of making genetically stable mutants of vibrio cholerae
Incubation of a parent strain of Vibrio cholerae at elevated temperature to produce a hypotoxinogenic variant strain and mutation of the variant strain results in mutant strains which retain the biotype and antigens of the parent strain, and which are gen...
04/28/1981
4256743Inhibition of bone resorption with H1 -blocking antihistamines
Inhibition of bone resorption in mammals suffering from a disease in which bone resorption exceeds new bone formation by administering an H1 -blocking antihistamine....
03/17/1981
4217412Production of tumor angiogenesis factor by cell culture
Process for the production of human TAF in vitro comprising growing the human medulloblastoma cell line TE-671 in agitated, liquid suspension of nutrient culture medium at about 35°-38° C. for a sufficient time to elaborate TAF and recovering the resul...
08/12/1980
4207414Polysaccharide antigens
Culturing Streptococcus agalactiae in a nutrient broth containing at least 10 g/l of glucose while maintaining the pH at 6-8 by the addition of alkaline material produces polysaccharide antigen including a fraction having a molecular size from 8-11×10
06/10/1980
4131727Method of purifying alcohol dehydrogenase and affinity resin therefor
An affinity resin containing pyrazole immobilized on a solid insoluble support by a coupling arm bonded at the 4-position having a length of at least 12 Angstrom units is used to purify and fractionate crude alcohol dehydrogenase extract into a pyrazole-b...
12/26/1978
4111751Method of purifying alcohol dehydrogenase
An affinity resin containing pyrazole immobilized on a solid insoluble support by a coupling arm bonded at the 4-position having a length of at least 12 Angstrom units is used to purify and fractionate crude alcohol dehydrogenase extract into a pyrazole-b...
09/05/1978
4021387Eosinophilotactic tetrapeptides
Two eosinophilotactic tetrapeptides of amino acid sequence Val-Gly-Ser-Glu and Ala-Gly-Ser-Glu have been isolated from extracts of human lung fragments. These tetrapeptides have been synthesized by solid phase peptide synthesis procedures and the syntheti...
05/03/1977
                    19  
 
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