In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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| Number | Title | Issue Date |
| 7081544 | Chiral ligands, transition metal complexes thereof, and the catalytic use of the same The invention relates to novel chiral ligands of formula (I), the production thereof and the use of the same in catalytic reactions. ... | 07/25/2006 |
| 6812350 | Synthesis of 3,3,4,4-tetrafluoropyrrolidine and novel dipeptidyl peptidase-IV inhibitor compounds The present invention relates to a method of making novel dipeptidyl peptidase-IV (“DPP-IV’) inhibitor compounds useful for treating, inter alia, diseases that are associated with proteins that are subject to processing by DPP-IV, such as Type 2 diabetes mellitu... | 11/02/2004 |
| 6610875 | Method for preparing chiral diphosphines The invention concerns a method for preparing a compound of formula (1) wherein: A represents naphthyl or phenyl optionally substituted; and Ar1, Ar2 independently represent a saturated or aromatic carbocyclic group, optionally subst... | 08/26/2003 |
| 6211397 | Process for the preparation of -chloromethylene-triorganylphosphorane derivatives A process for the preparation of -chloromethylene-triorganylphosphorane derivatives I ##STR1## (radicals R are C-organic substituents and A stands for CN or CO-B where B is a C-organic or O-organic radical which is inert under chlorination con... | 04/03/2001 |
| 6080860 | Methods of making ureas and guanidines including, terazosin, prazosin, doxazosin, tiodazosin, trimazosin, quinazosin and bunazosin (exemplary of 2-substituted quinazoline compounds), and meobentine, and bethanidine and intermediates therefor Novel methods for the synthesis of substituted ureas and guanidines including Terazosin, Prazosin, Doxazosin, Tiodazosin, Trimazosin, Quinasin and Bunazosin (exemplary of 2-amino substituted Quinazolines), Meobentine and Bethanidine and novel intermediate... | 06/27/2000 |
| 6034240 | Substituted aminomethylphosphines, coordination complexes of aminomethylphosphines and their synthesis Novel aminomethylphosphine ligands have particular substituents on the central carbon atom. Such ligands form coordination complexes that may be catalysts for the polymerization of monomers or other catalytic induced reactions.... | 03/07/2000 |
| 5808129 | Process for the preparation of novel stabilized phosphorus ylides Compounds of the formula (1) Ph3 .dbd.CH--C(R).dbd.Nu (1) wherein R is hydrogen, a C1 -C5 -alkyl, C1 -C3 -fluoroalkyl or perfluoroalkyl radical, an unfluorinated or fluorinated ... | 09/15/1998 |
| 5679849 | Method of producing a bis(2-carboxyethyl)alkyl phosphine oxide and a derivative thereof A method of producing a bis(2-carboxyethyl)-alkyl phosphine oxide represented by the following general formula (1) is disclosed. ##STR1## The method comprises the following Steps 1-4: step 1 wherein phosphine is reacted with acrylonitrile to produce ... | 10/21/1997 |
| 5502236 | Method for the production of (3-alkoxycarbonyl-2-butenyl)triphenylphosphonium salts Novel processes and intermediates useful for the manufacture of the Wittig ester salts are disclosed. The Wittig ester salts are known as important CS building blocks for the manufacture of various polyenecarboxylic acid esters in the field of carotenoid ... | 03/26/1996 |
| 5442084 | Method of selective fluorination The present invention is a method for selectively fluorinating various methylenephosphonate and methylenephosphorane derivatives using an electrophilic fluorinating agent, such as N-fluoro 1,4-diazabicyclo[ 2.2.2]octane by fluorinating the monohalogenated... | 08/15/1995 |
| 5166385 | Process for the preparation of phosphino compounds Process for the preparation of phosphino compounds Phosphorus-containing compounds of the formula (I) (R1)(R2)P(O)--CR3 R4 --CHR5 R6 (I) in which R1 and R2 are alkyl, alkoxy or ... | 11/24/1992 |
| 5132448 | Preparation of -chloro phosphorus ylides -Chloro phosphorus ylides of the formula I ##STR1## where the Ar radicals are identical or different aryl groups, and E is a substituent which stabilizes the ylide (I), are prepared by reacting a phosphonium salt of the formula II ##STR2#... | 07/21/1992 |
| 5061388 | Novel phthalonitriles and phthalocyanines as lubricity-enhancing additives Disclosed herein are phthalonitriles of the following formula: ##STR1## wherein R1, R2, and R3 are independently in each occurrence an aryl or phosphazine group; X is independently in each occurrence O, S, S(O), S(O)(... | 10/29/1991 |
| 5028730 | Antihypercholesterolemic nitrile compounds Compounds of the formula ##STR1## wherein R1, R2, R3 and R4 each are independently hydrogen, halogen, C1-4 alkyl, C1-4 alkoxy or trifluoromethyl; A is ##STR2## and R5 ... | 07/02/1991 |
| 4927944 | Antihypercholesterolemic nitrile compounds Compounds of the formula ##STR1## wherein R1, R2, R3 and R4 each are independently hydrogen, halogen, C1-4 alkyl, C1-4 alkoxy or trifluoromethyl; A is ##STR2## and R5 ... | 05/22/1990 |
| 4743618 | Substituted 2-aminotetralins Novel compounds useful as dopamine receptor agonists for the treatment of various diseases of the central nervous system such as Parkinson's disease and related disorders having the structural formula ##STR1## where R2, R3 and R... | 05/10/1988 |
| 4734516 | Process for the preparation of partially halogenated 1-propanols The reaction of a zinc compound compound of formula III wherein y is 1 or 2 and L is a solvent ligand selected from the group consisting of the N-disubstituted acid amides, N-substituted lactams and organic sulfoxides, with an aldehyde of formula II wherein R ... | 03/29/1988 |
| 4605434 | Herbicidal and plant-growth-regulating (2-nitro-5-aryloxy-phenylamino)-alkylphosphine oxide derivatives and compositions (2-Nitro-5-aryloxy-phenylamino)-alkylphosphine oxide derivatives of the formula I ##STR1## wherein X is halogen, CF3, NO2, CN, CONH2 or CSNH2, Y is nitrogen or --CH.dbd., R1 is hydrogen, C1... | 08/12/1986 |
| 4594098 | Phosphorus-containing functional derivatives of acetic acid, process for their preparation and herbicidal and growth-regulating agents containing them Compounds of the formula ##STR1## in which R1 and R2 denote alkyl, CF3, benzyl cyclohexyl, cyanoethyl, phenyl or OH and A denotes, inter alia, the groups --CO--, CHOH or CH--NH2 and --COR3 denote... | 06/10/1986 |
| 4529556 | Bis((aryl)vinyl)benzenes The invention bis((aryl)vinyl)benzenes wherein the aryl and benzene moieties may be substituted, and the vinyl carbon alpha to the central benzene ring may be further substituted with an aliphatic group.... | 07/16/1985 |
| 4459306 | Tricyclic ethers, their process of preparation and their use as medicines This invention relates to novel tricyclic ethers, pharmaceutically acceptable addition salts and optical isomers therefrom. The compounds described herein are useful as psychotropic agents in the treatment of depression and anxiety. Also included herein a... | 07/10/1984 |
| 4439373 | Process for preparing phosphonomethylated amino acids A process for preparing phosphonomethylated amino acids comprising protecting a primary amino acid ester or salt with a carbon dioxide protecting group, phosphonomethylating the protected amino compound formed, and removing the carbon dioxide protecting g... | 03/27/1984 |
| 4390476 | Phosphonium compounds, a process for their preparation and a process for the preparation of asymmetrically substituted stilbene fluorescent brightening agents Phosphonium compounds of the formula in which R is preferably alkyl having 1 to 4 C atoms, cyclohexyl or phenyl, R1 is a substituted or unsubstituted aromatic radical, especially a phenyl radical, X is phenylene, 4,4'-biphenylene or 1,4- or 2,6... | 06/28/1983 |
| 4357280 | Use of tertiary phosphines in photographic silver dye bleach materials A method of processing photographic silver dye bleach materials which have been exposed imagewise is provided. The process steps are (1) silver developing, (2) dye bleaching, (3) silver bleaching and (4) fixing. The treatment baths for the process steps (... | 11/02/1982 |
| 4341772 | Agricultural phosphorus-containing sulfenamides S-(Diarylamino)thiophosphates are useful as miticides, insecticides, fungicides and ovicides.... | 07/27/1982 |
| 4316860 | Phosphonium compounds, a process for their preparation and a process for the preparation of asymmetrically substituted stilbene fluorescent brightening agents Phosphonium compounds of the formula in which R is preferably alkyl having 1 to 4 C atoms, cyclohexyl or phenyl, R1 is a substituted or unsubstituted aromatic radical, especially a phenyl radical, X is phenylene, 4,4'-biphenylene or 1,4- or 2,6... | 02/23/1982 |
| 4211547 | N-Phosphonomethyliminodiacetonitrile and certain derivatives thereof N-phosphonomethyliminodiacetonitrile and certain derivatives thereof are novel compounds which can be used as herbicides themselves and/or can be converted to known herbicides.... | 07/08/1980 |
| 4182881 | N-[Diaminophosphinyl]arylcarboxamides A series of N-[diaminophosphinyl]arylcarboxamides are useful as inhibitors of the enzyme urease.... | 01/08/1980 |
| 4149014 | Process for the preparation of bis-(ଲ-carboxyethyl)alkyl phosphine oxides from tris-cyanoethyl phosphine Lower alkyl bis-(ଲ-carboxyethyl) phosphine oxides are prepared from tris-cyanoethyl phosphine in a functionally coordinated sequentially ordered process comprising alkylating the tris-cyanoethyl phosphine to a phosphonium salt, dequarternizing the p... | 04/10/1979 |
| 4071549 | Process for the preparation of bis-(beta-cyanoethyl) alkyl phosphine from tris-cyanoethyl phosphine Lower alkyl bis-(ଲ-cyanoethyl) phosphines are prepared from tris-cyanoethyl phosphine by alkylating tris-cyanoethyl phosphine to a phosphonium salt, and dequarternizing the phosphonium salt to a lower alkyl bis-(ଲ-cyanoethyl) phosphine.... | 01/31/1978 |
| 3972923 | Process for the preparation of phosphonic acid dihalides Process for preparing phosphonic acid dihalides of the formula ##EQU1## wherein R is alkyl of 1 to 18 carbon atoms, cycloalkyl of 4 to 8 carbon atoms, alkenyl of 2 to 18 carbon atoms, phenyl, phenalkyl or alkyl-phenyl of 7 to 8 carbon atoms, phenyl, ... | 08/03/1976 |
| 3950413 | Process for the preparation of phosphonic acid dihalides A process for the preparation of phosphonic acid dihalides of the formula ##EQU1## IN WHICH R is , ଲ-unsaturated alkyl, , ଲ-unsaturated alkyl, phenyl or benzyl and may be further substituted, which comprises reacting corresp... | 04/13/1976 |
| 3945896 | Electrolytic carboxylation of acetonitrile and alpha-substituted acetonitriles Acetonitrile and alpha-substituted acetonitriles are electrolytically carboxylated to yield the corresponding alpha-cyano carboxyl compounds.... | 03/23/1976 |