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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| D656522 | Excavator bucket | 03/27/2012 |
| 8137987 | Simultaneous assay for determining drugs Bodily fluid is analyzed for the presence of drugs of a selected panel of drugs in a simultaneous assay in which sample of the fluid is incubated with additional amounts of all drugs of the panel, antibodies specific to each of the drugs of the panel, and microparti... | 03/20/2012 |
| 8137730 | Power spraying of agricultural products with wrinkled skins Raisins that have been formed by field drying of grapes and that have been exposed to rain during the drying process that has caused solids, particularly sand, to become embedded in the surface folds of the raisins, are cleaned of such embedded solids by spraying wi... | 03/20/2012 |
| 8136672 | Sizing roller screen ore processing apparatus A mined ore processing apparatus to process mined ores, such as oil sands ore, into granular material is disclosed. An ore processor bed receives the ore to be processed. The ore processor bed has a frame supporting several rotating elements each separately driven t... | 03/20/2012 |
| 8128816 | Piston movement control for preparative chromatography column In an axial-flow preparative chromatography column that contains a piston, commonly termed an adaptor, that is lowered over the top of the resin, the ability to lower the piston in a controlled manner to minimize the chances of damage to the resin is achieved by use... | 03/06/2012 |
| 8128799 | Welded electrophoresis cassette without leakage-prone weld line A slab gel cassette is formed from generally flat plates welded together along their borders with a gel space between the plates that is open at the top and bottom edges of the plates to expose the opposing ends of a gel in the gel space to buffer solutions in which... | 03/06/2012 |
| 8080674 | Preparation of polymer-free R-(+)-α-lipoic acid magnesium salt R-α-Lipoic acid and its homologs are converted to their magnesium salts in the presence of a reduced form of the acid, dihydro-(+)-lipoic acid in the case of R-α-lipoic acid itself. The reduced form serves as a polymerization inhibitor, resulting in a Mg di-R-α-l... | 12/20/2011 |
| 8076511 | Preparative-scale separation of enantiomers of chiral carboxylic acids High yields and purity are obtained in the purification of enantiomers of chiral carboxylic acids by preparative-scale chromatography by including a tertiary alcohol in the mobile phase in conjunction with an acidic modifier and a hydrophobic solvent. The tertiary a... | 12/13/2011 |
| 8076404 | Rubber compositions The present invention relates to rubber compositions containing a filler and comprising (i) at least one rubber containing olefinic unsaturation and (ii) functionalized nano transition metal oxide and/or sulfide particles. The invention further relates to a method o... | 12/13/2011 |
| 8075755 | Polymeric sorbent sheets as ion reservoirs for electroblotting Electroblotting for the transfer of electrophoretically separated species from a gel to a transfer membrane is performed in a semi-dry format with sheets of absorbent polyester or polyester/cellulose blend wetted with buffer solution in place of the traditional buff... | 12/13/2011 |
| D648690 | HD set-top box | 11/15/2011 |
| 8053565 | Multi-media affinity column to prevent leaching of ligands In an affinity-type purification, ligands dissociated from a packed bed that would otherwise leach into the solution containing the species being purified are captured by a second ligand that resides in a porous barrier downstream from the packed bed, the second lig... | 11/08/2011 |
| 8052985 | Storage-stable compositions containing hydrogen cyanamide and propionic acid An aqueous storage-stable composition comprises from about 10 to about 35% by weight hydrogen cyanamide, from about 3 to about 25% by weight propionic acid, potassium propionate or ammonium propionate, and water, and has a pH of from about 2.5 to about 4, wherein th... | 11/08/2011 |
| 8051726 | Liquid handling equipment A pipette [1] is equipped with a jet [10] and handpiece [6]. A piston assembly, housed within the pipette [1], at one end has a seal [9] affixed to a rigid section [2] which extends to a flexible section [4]. At the j... | 11/08/2011 |
| 8021894 | Retentate chromatography and protein chip arrays with applications in biology and medicine This invention provides methods of retentate chromatography for resolving analytes in a sample. The methods involve adsorbing the analytes to a substrate under a plurality of different selectivity conditions, and detecting the analytes retained on the substrate by d... | 09/20/2011 |
| 8021648 | Hydrogen cyanamide pesticide formulations Agricultural crops are protected from the growth of undesirable vegetation as well as nematode and insect infestations, by the application of hydrogen cyanamide in combination with a short-chain, water-soluble monocarboxylic acid, with improved pesticidal effect. | 09/20/2011 |
| 8017381 | Composite electroporation plate with interchangeable well inserts Electroporation on a plurality of samples of membranous structures is performed in an electroporation well plate that includes a frame that can hold a plurality of well strips to form a two-dimensional array of wells, and a set of well strips, the set containing str... | 09/13/2011 |
| 8016211 | Pintle-controlled propulsion system with external ring actuator A propulsion system with a divergent-convergent nozzle is provided with variable thrust by a pintle whose position relative to the nozzle throat is controlled by an actuator that includes a rotor that external to, and encircling, the nozzle, and that is coupled to e... | 09/13/2011 |
| 8011901 | Discharge pressure actuated pump A pump has a pump barrel formed from a larger diameter section and a smaller diameter section. Each section has a biased piston moveable within the section and the pistons are connected together to form a variable volume chamber between the pistons. As the connected... | 09/06/2011 |
| 8008063 | Individual-cell electroporation using area-focused electric fields Electroporation is performed on a population of cells, liposomes, vesicles, or other membrane-encased structures with uniform results regardless of size variations within the population, by drawing the membrane-encased structures into micron-sized openings that cont... | 08/30/2011 |
| 8002104 | Method and apparatus for changing orientation of a container A method and apparatus for changing orientation of a container to facilitate subsequent processing of the container is disclosed. The apparatus includes a ramp having a first end and a second end. The ramp is disposed to receive the container from the feed path in a... | 08/23/2011 |
| 7968108 | Hydrogen cyanamide pesticide formulations Agricultural crops are protected from the growth of undesirable vegetation as well as nematode and insect infestations, by the application of hydrogen cyanamide in combination with a short-chain, water-soluble monocarboxylic or polycarboxylic acid, the acid containi... | 06/28/2011 |
| 7958736 | Thermoelectric device and heat sink assembly with reduced edge heat loss An assembly that includes one or more thermoelectric devices and a heat sink and that corrects the problem of an uneven heating effect across the area occupied by the devices due to a lateral heat loss at the edges of the devices or other anomalies among the devices... | 06/14/2011 |
| 7955573 | Low-mass sample block with rapid response to temperature change A sample block for use in the polymerase chain reaction, DNA sequencing, and other procedures that involve the performance of simultaneous reactions in multiple samples with temperature control by heating or cooling elements contacting the bottom surface of the bloc... | 06/07/2011 |
| 7950530 | Sludge and sediment removal system by remote access A compound conduit containing inner and outer conduits with apertures in the former that are angled to direct jets of fluid in a rearward direction from the inner conduit into the annular space is used to draw sludge or undesirable material from a vessel without imp... | 05/31/2011 |
| 7947465 | Simultaneous assay for determining drugs Bodily fluid is analyzed for the presence of drugs of a selected panel of drugs in a simultaneous assay in which sample of the fluid is incubated with additional amounts of all drugs of the panel, antibodies specific to each of the drugs of the panel, and microparti... | 05/24/2011 |
| D638385 | HD set-top box | 05/24/2011 |
| 7943367 | High-throughput electroporation chamber with functional lid for risk reduction A chamber that includes electrical contacts and a protective lid with a manually operated release is designed to receive a multi-well electroporation plate and to allow high-throughput electroporation on the well contents with minimal risk of electrical shock to the... | 05/17/2011 |
| 7910712 | Fungal cell wall synthesis gene The present invention provides isolated DNA encoding a GWT1 protein having activity to confer resistance of a fungus against a compound of formula Ia, and wherein a defect of a function of the GWT1 protein leads to a decrease in the amount of a glycosylphosphatidyli... | 03/22/2011 |
| 7897124 | Continuous process and plant design for conversion of biogas to liquid fuel Biogases such as natural gas and other gases capable of being biologically derived by digestion of organic matter are converted to a clean-burning hydrocarbon liquid fuel in a continuous process wherein a biogas is fed to a reaction vessel where the biogas contacts ... | 03/01/2011 |
| 7880044 | Conversion of biogas to liquid fuels Biogas is converted to a liquid fuel by passing the biogas through a liquid reaction medium that contains a petroleum fraction in the presence of a transition metal catalyst, and doing so at an elevated but non-boiling temperature. ... | 02/01/2011 |
| RE41898 | Process for halomethyl ethers of hydroxyiminomethyl quaternary pyridinium salts A halide salt of a 1-(hydroxyiminomethyl-1-pyridino)-3-(halomethyl)-2-oxapropane is prepared by adding a pyridinealdoxime to a bis-halomethylether in such a manner that the bis-halomethylether is maintained in excess throughout the addition. This procedure produces ... | 10/26/2010 |
| 7807782 | Method for linking molecular substances The invention relates to a method for linking two or more molecular substances, by means of adapter segments, which bring about a targeted interaction based upon the affinity of proline-rich amino acid sequences and protein domains of the type WW. ... | 10/05/2010 |
| 7806947 | Liquid hydrocarbon fuel from methane assisted by spontaneously generated voltage A methane-containing gas such as natural gas is converted to a clean-burning hydrocarbon liquid fuel in a process wherein the gas is fed to a reaction vessel to contact a metallic catalyst grid that is formed from windings of a transition metal supported on an iron ... | 10/05/2010 |
| 7795638 | Semiconductor device with a U-shape drift region A cell of a semiconductor device comprises a substrate of n-type with a trench formed in a portion of a first main surface of the substrate and filled with insulator. Two device-feature regions are formed beneath the first main surface of the substrate, the first on... | 09/14/2010 |
| 7772423 | Process for the production of alkyl alkoxyacetates A process for the production of lower alkyl alkoxyacetates, preferably methyl methoxyacetate, by reaction of a di-(lower alkoxy)methane, preferably dimethoxymethane, with the acid form of a medium-pore or large-pore zeolite catalyst, preferably the acid form of fauj... | 08/10/2010 |
| 7772302 | Incorporation of plastic scrap in asphalt compositions Scrap plastic is treated for incorporation into asphalt-aggregate compositions by first shredding the plastic, then heating the shredded plastic to harden any pieces of film or flexible plastic and to generally reduce the size of the shreds without decomposing the p... | 08/10/2010 |
| 7771933 | Localized temperature control for spatial arrays of reaction media Individual temperature control in multiple reactions performed simultaneously in a spatial array such as a multi-well plate is achieved by thermoelectric modules with individual control, with each module supplying heat to or drawing heat from a single region within ... | 08/10/2010 |
| 7762078 | Nozzle with temperature-responsive throat diameter Nozzles that offer shape variability to maintain or purposely change the pressure drop across the throat are obtained by constructing the nozzles with components that change their shape, angle, or curvature in response to temperature changes that occur during the fl... | 07/27/2010 |
| 7754861 | Method for purifying proteins The present invention provides methods and kits for purifying a target protein group. The method comprises the steps of contacting a sample comprising at least 95% of the target protein group and at most 5% of contaminating proteins with a library of binding moietie... | 07/13/2010 |
