"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7094277 | Counterion use for reduction of decap and for improvement of durability of inkjet images A dye for ink-jet printing on both hydrophilic and hydrophobic papers. The dye includes a chromophore tonically coupled to a counterion. One of the chromophore and the counterion includes a hydrophilic moiety. The other includes a hydrophobic moiety. ... | 08/22/2006 |
| 7056376 | Printing process using specified AZO compounds A process for printing an image on a substrate comprising applying thereto a composition comprising a liquid medium and a compound of Formula (1): T-Q-N═N-L-T Formula (1) wherein: each T independently is ... | 06/06/2006 |
| 6075131 | Monoazocompounds with an indanyl moiety Compounds of Formula (1) have utility as dyes for ink-jet printing where Formula (1) comprises: Tq --W Formula (1) which includes all acceptable forms of such compounds selected from one or more of the ... | 06/13/2000 |
| 5462694 | Mesomorphic compound, liquid crystal composition containing the compound, liquid crystal device using the composition, liquid crystal apparatus and display method A mesomorphic compound of the formula (I) according to claim 1 characterized by having at least one cyclic group selected from ଲ class including, e.g., thiazole-2,5-diyl, benzoxazole-2,5-diyl, indan-2,5-diyl, and quinoxaline-2,6-diyl and also having... | 10/31/1995 |
| 5162545 | Malonic acid dyes and polycondensation products thereof Malonic acid dyes capable of forming polycondensation products have the formula ##STR1## where R1 and R2 are each independently of the other hydroxyl, C1 -C6 -alkoxy, chlorine or bromine, R3 is h... | 11/10/1992 |
| 5145953 | Monomers of biscyclobutarenes bridged by at least one azo linkage A biscyclobutarene monomer is prepared having two cyclobutarene moieties bridged by a divalent radical having at least one azo linkage. The monomers can be polymerized to form polymers exhibiting outstanding thermooxidative stability at high temperatures ... | 09/08/1992 |
| 4288511 | Photographic elements containing encapsulated polymers coordinated with metal ions A photographic element comprises a support having thereon a layer containing a hydrophilic vehicle having dispersed therein a particulate polymeric material encapsulated with a chelating or already chelated polymer, said element, when the polymer is not a... | 09/08/1981 |
| 4279981 | Electrophotographic elements containing trisazo compounds The present invention provides trisazo compounds expressed by the general formula I ##STR1## [wherein A represents ##STR2## (wherein R represents hydrogen, alkyl radical, alkoxy radical, nitro radical, dialkylamino radical or halogen, and n... | 07/21/1981 |
| 4189427 | Azo dyestuffs from benzene diazo component fused to an aliphatic ring and containing two cyano substituents ortho to the azo group Azo dyestuffs of the formula ##STR1## wherein X1 and X2 denote alkyl, cycloalkyl, aralkyl or aryl or conjointly form the remaining members of a fused non-aromatic carbocyclic ring system, X3 denotes hydrogen, alkyl, a... | 02/19/1980 |
| 4073781 | Method of production of azo dyes from a quinone containing compound and a diazonium compound A method of preparing an azo dye containing a quinone residue useful as an intermediate for dyes and dye developers suitable for the color diffusion transfer process comprising reacting a quinone residue-containing coupler with a diazonium compound whereb... | 02/14/1978 |
| 3931143 | Unsymmetrical aliphatic monoazo compounds Unsymmetrical azo compounds: ##EQU1## where (R").sub.3 C-- is tertiary-aliphatic and Z is cyano or a derivative thereof, e.g., 2-t-butylazo-2-cyanopropane; processes for preparing such azo compounds by (a) adding hydrocyanic acid to a preformed hydra... | 01/06/1976 |