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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7332067 | Process for the preparation of α-substituted carboxylic acids from the series comprising α-hydroxycarboxylic acids and n-substituted-α-aminocarboxylic acids A process for the preparation of α-substituted carboxylic acids from the series including α-hydroxycarboxylic acids and N-substituted-α-aminocarboxylic acids by cathodic carboxylation with carbon dioxide of a compound corresponding to the general formula R1 | 02/19/2008 |
| 6880703 | Floral transport apparatus A floral transport apparatus to facilitate the transportation and delivery of floral arrangements is disclosed. The floral transport apparatus includes a hard plastic container housing a support carriage having a set of longitudinal elastic bands and a set of latera... | 04/19/2005 |
| 6669828 | Cathode for electrolysis cells A cathode is made of an electrically conducting support with a coating of electrochemically deposited lead with a density between 0.001 and 2 g/cm3.... | 12/30/2003 |
| 6475370 | Process for the production of 2-hydroxy-4-methylmercaptobutyric acid A process for the production of 2-hydroxy-4-methylmercaptobutyric acid (MHA) by electrochemical carboxylation of 3-methylmercapto-propionaldehyde in an undivided electrolytic cell containing a sacrificial anode, in an aprotic solvent in the presence of a ... | 11/05/2002 |
| 6294069 | Method for preparing 2-aryl or 2-heterocyclyl chiral propionic acids and their esters A process for the preparation of chiral 2-aryl or 2-heterocyclyl-propionic acids of the formula ##STR1## wherein the substituents are as defined in the specification.... | 09/25/2001 |
| 5660711 | Process for the preparation of intermediates useful in the synthesis of cephalosporins A process is described for preparing 3-exomethylene cephalosporanic acid derivatives for use in the synthesis of cephalosporin antibiotics such as ceftibuten. The process comprises electrochemical reduction of a compound of the formula (IV) ##STR1## ... | 08/26/1997 |
| 5474658 | Electrochemical process for preparing glyoxylic acid The present invention describes a process for preparing glyoxylic acid by electrochemical reduction of oxalic acid in aqueous solution in divided or undivided electrolytic cells, wherein the cathode comprises carbon or at least 50% by weight of at least o... | 12/12/1995 |
| 5395488 | Electrochemical process for reducing oxalic acid to glyoxylic acid The present invention describes a process for preparing glyoxylic acid by electrochemical reduction of oxalic acid in aqueous solution in divided or undivided electrolytic cells, wherein the cathode comprises from 50 to 99.999% by weight of lead and the a... | 03/07/1995 |
| 4921585 | Electrolysis cell and method of use The present invention discloses an improved solid polymer electrolysis cell for the reduction of carbon dioxide. The improvement being the use of a cathode having a metal phthalocyanine catalyst which results in the suppression of the formation of hydroge... | 05/01/1990 |
| 4871430 | Novel multifunctional compounds and electrolytic oxidative coupling process A process for electrochemically coupling anions of organic radicals to form multifunctional compounds having the general formula ##STR1## in which R1 and R2 are independently selected from --CN, CO2 Et, --R 4 | 10/03/1989 |
| 4824532 | Process for the electrochemical synthesis of carboxylic acids The invention relates to a process for the electrosynthesis of carboxylic acids of general formula R-COOH in which R is an organic radical by the electrochemical reduction, in the presence of carbon dioxide, of organic compounds corresponding to the gener... | 04/25/1989 |
| 4708780 | Process for the electrocarboxylation of carbonyl compounds, for producing -hydroxycarboxylic acids A process for the electrocarboxylation of carbonyl compounds, for producing -hydroxycarboxylic acids by means of the reaction: ##STR1## The electrolysis of the carbonyl compound is conducted in a diaphragm-less cell with a soluble metal anode ... | 11/24/1987 |
| 4692226 | Process to manufacture glyoxylic acid by electrochemical reduction of oxalic acid This process, carried out at a temperature of 0° to 30° C. in an electrolyzer outfit consisting of at least one anode compartment containing an anode and anolyte, comprising an aqueous acid solution, at least one cathode compartment containing a cathode... | 09/08/1987 |
| 4686018 | Organic electrolysis cell with sacrificial electrode The present invention relates to a cell for the organic electrosynthesis of organic or organometallic compounds, containing two electrodes (2) and (4) of which only one (4) is sacrificed by the electrochemical reaction of which it forms the seat. The sacr... | 08/11/1987 |
| 4640750 | Process for the preparation of 3-hydroxy-3-methylglutaric acid 3-Hydroxy-3-methylglutaric acid is prepared by electrolysis of an aqueous alkaline solution of 3-methyl-1,3,5-pentanetriol using anodes coated with nickel oxide/hydroxide NiO(OH) and conventional cathodes, followed by acidification of the alkaline solutio... | 02/03/1987 |
| 4601797 | Electrochemical carboxylation of p-isobutylacetophenone and other aryl ketones Hydroxyibuprofen is produced in good yield by reduction of p-isobutylacetophenone at the cathode in the presence of carbon dioxide. Hydroxyibuprofen is readily hydrogenolyzed to ibuprofen. Electrochemical carboxylation of other selected aryl methyl ketone... | 07/22/1986 |
| 4595467 | Process for preparation of glyoxylic acid through electrochemical anodic oxidation of glyoxal Process for preparation of glyoxylic acid through electrochemical anodic oxidation of glyoxal in aqueous solution at a temperature comprised between 0° C. and 70° C. in an electrolyzer comprising at least one cathodic compartment containing a cathode an... | 06/17/1986 |
| 4560450 | Means and method for reducing oxalic acid to a product Apparatus for reducing oxalic acid to a product includes a cell. A separator which separates the cell into two chambers; a catholyte chamber and an anolyte chamber. Each chamber has an inlet and an outlet. A porous cathode having a catalyst is arranged wi... | 12/24/1985 |
| 4529488 | Process for depositing salts A process for depositing a salt by applying an electric current or voltage to at least one pair of electrodes placed in a supersaturated aqueous solution or supercooled molten liquid of an inorganic or organic salt, whereby the supersaturation or supercoo... | 07/16/1985 |
| 4496440 | Oxidation of hydrophobic --CH2 OH compounds at oxidized nickel anodes Mono- or dimethylol compounds having water solubilities of 3 grams or less per 100 grams of water are electrochemically oxidized to the corresponding mono- or dicarboxylic acids at activated nickel oxide anodes. The methylol compounds are adducts of 1,2-a... | 01/29/1985 |
| 4457814 | Process for electrochemical reduction of terephthalic acid Terephthalic acid, as the sodium salt, is electrochemically reduced to sodium p-hydroxymethylbenzoate wherein the catholyte comprises a soluble sodium salt and pH of the catholyte is controlled within limits to obtain good circuit efficiency and little or... | 07/03/1984 |
| 4402805 | Electrochemical process to prepare p-hydroxymethylbenzoic acid with a low level of 4-CBA Terephthalic acid is electrochemically reduced to p-hydroxymethylbenzoic acid and 4-carboxybenzaldehyde content is decreased by a process in a two-compartment electrolysis cell in which (a) the cathode is solid and metal with a mercury amalgam surface and... | 09/06/1983 |
| 4381229 | Process for electrochemical reduction of terephthalic acid Terephthalic acid is electrochemically reduced to p-hydroxymethylbenzoic acid in a process in an electrolysis cell in which (a) the cathode is solid and metal with an amalgam of mercury surface and has a hydrogen overvoltage which is greater than the pote... | 04/26/1983 |
| 4375393 | Preparation of diacetone-ketogulonic acid A process for preparing diacetone-ketogulonic acid comprises oxidizing diacetonesorbose to diacetone-ketogulonic acid to an extent of about 30-95% by electrochemical oxidation or O2 oxidation; electrodialysing the resultant reaction solution to... | 03/01/1983 |
| 4293393 | Use of electrogenerated bases in condensation reactions The invention is a process for using certain electrogenerated bases in reactions such as acetoacetic ester condensations wherein an azobenzene probase is electro-reduced to produce an electrogenerated base, acetic ester is deprotonated by electrogenerated... | 10/06/1981 |
| 4235684 | Process for producing glyoxalic acid by electrolytic oxidation A process for producing glyoxalic acid which comprises electrolytically oxidizing glyoxal in an electrolytic cell comprising at least one anode, at least one cathode and at least one cation exchange membrane therebetween to define an anode compartment(s) ... | 11/25/1980 |
| 4097346 | Electrochemical oxidation of diacetone-L-sorbose to diacetone-L-ketogulonic acid Process for producing diacetone-L-ketogulonic acid by passing a solution of diacetone-L-sorbose through a specially constructed electrochemical cell while applying electrical current whereby to bring about oxidation of said diacetone-L-sorbose at the anod... | 06/27/1978 |
| 4008132 | Process for the electrolyte preparation of diacetone-2-ketogulonic acid Diacetone-2-ketogulonic acid is prepared by electrochemical oxidation of diacetone-sorbose in an aqueous alkaline medium in the presence of 0.001 to 1% of surfactant.... | 02/15/1977 |
