Patents by Inventor Peter Hofmann
Peter Hofmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6121265Abstract: Imidazoloquinoxalinones of the formula ##STR1## where R.sup.1 -R.sup.5, A and B have the meanings stated in the description, and their preparation are described. The novel substances are suitable for controlling diseases.Type: GrantFiled: March 18, 1997Date of Patent: September 19, 2000Assignee: BASF AktiengesellschaftInventors: Hans-Jorg Treiber, Wilfried Lubisch, Berthold Behl, Hans Peter Hofmann
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Patent number: 5916420Abstract: The present invention relates to a thin printing paper with a weight per unit area in the range below 49 g/m.sup.2 and which contains wood and which is provided with surface pigmentation and which incorporates a mixture of a swellable coating silicate (sodium bentonite) and, for the remainder, conventional coating pigments as the pigment and which, in addition, contains only bonding agent that is a natural organic bonding agent, essentially starch. Even if only lightly calendered, the paper is equally well suited for rotogravure printing and for rotary offset printing. It is preferred that the paper also contain a proportion of processed fibres obtained from old-paper.Type: GrantFiled: September 12, 1995Date of Patent: June 29, 1999Assignee: Haindl Papier GmbHInventors: Hartmut Wurster, Hans-Peter Hofmann
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Patent number: 5891989Abstract: Copolymers of carbon monoxide and olefinically unsaturated compounds are obtainable by polymerization of the monomers in the presence of a metal complex of the formula (I) ##STR1## where the substituents and indices have the following meanings: M is a metal from group VIIIB of the Periodic Table of the Elements,E.sup.1, E.sup.2 are each an element from group VA of the Periodic Table of the Elements,Z is a structural unit having a bridging atom selected from among the elements of groups IVA, VA and VIA of the Periodic Table of the Elements,R.sup.1 to R.sup.4 are substituents selected from the group consisting of C.sub.1 -C.sub.20 -organic and C.sub.3 -C.sub.30 -organosilicon radicals, where at least one of the four radicals is a nonaromatic radical,L.sup.1, L.sup.2 are formally charged or uncharged ligandsX are formally monovalent or polyvalent anionsp is 0, 1 or 2m, n are 0, 1 or 2where p=m.times.n.Type: GrantFiled: November 6, 1997Date of Patent: April 6, 1999Assignee: BASF AktiengesellschaftInventors: Ferdinand Lippert, Arthur Hohn, Peter Hofmann
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Patent number: 5852017Abstract: 2,3(1H,4H)-quinoxalinediones of the formula I ##STR1## where R.sup.1 is hydrogen, an aliphatic radical which has up to 12 carbons and can be substituted by one of the following: phenyl, cyclopentyl, cyclohexyl or --CO--R.sup.3, --CO--O--R.sup.3 or --CO--NH--R.sup.3, where R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, benzyl or 1-phenylethyl,a cycloaliphatic radical with up to 12 carbons or phenyl, where the cyclic groups in R.sup.1 can have up to three of the following substituents: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, halogen, nitro, cyano, --CO--O--R.sup.3 and --CO--NH--R.sup.3 ;R.sup.2 is 1-pyrrolyl which can have up to two of the following substituents: C.sub.1 -C.sub.4 -alkyl, phenyl, phenylsulfonyl, nitro, cyano and --CO--O--R.sup.3, --CO--NH--R.sup.3, --CH.sub.2 --O--R.sup.3, --O--R.sup.3 and --CH.dbd.NO--R.sup.3R radicals are identical or different and are the following: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.Type: GrantFiled: June 23, 1997Date of Patent: December 22, 1998Assignee: BASF AktiengesellschaftInventors: Wilfried Lubisch, Berthold Behl, Hans Peter Hofmann
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Patent number: 5849743Abstract: Quinoxaline-2,3-(1H,4H)-diones of the formula I ##STR1## and their tautomeric and enantiomeric forms and their physiologically tolerated salts, the variables R, R.sup.1 and R.sup.2 have the meanings specified in claim 1, and are useful for therapeutic treatment of neurodegenerative disorders, neurotoxic disturbances or as antiepileptics, antidepressants and anxiolytics; and drugs composed thereof.Type: GrantFiled: June 20, 1997Date of Patent: December 15, 1998Assignee: BASF AktiengesellschaftInventors: Wilfried Lubisch, Berthold Behl, Hans Peter Hofmann
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Patent number: 5849744Abstract: Pyrrolyltetrahydrobenzoquinoxalinediones of the formula I ##STR1## and their tautomeric and isomeric forms, and their physiologically tolerated salts, in which the variables have the meanings stated in the description, and the preparation thereof are described. The novel compounds are antagonists of the glutamate receptor subtypes and are thus suitable for controlling various diseases.Type: GrantFiled: March 27, 1997Date of Patent: December 15, 1998Assignee: BASF AktiengesellschaftInventors: Wilfried Lubisch, Michael Vierling, Berthold Behl, Hans Peter Hofmann
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Patent number: 5773439Abstract: Novel amido-quinoxalinediones of the formula ##STR1## where R.sup.1 -R.sup.5, n and m have the meanings stated in the description, and the preparation thereof are described. The compounds are suitable for controlling diseases.Type: GrantFiled: December 20, 1996Date of Patent: June 30, 1998Assignee: BASF AktiengesellschaftInventors: Wilfried Lubisch, Berthold Behl, Hans Peter Hofmann
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Patent number: 5723678Abstract: Acetylenic compounds of the general formula IR.sup.1 --C.tbd.C--CHR.sup.2 --CH.sub.2 --X Iwhere the substituents have the following meanings:R.sup.1 hydrogen, unsubstituted or substituted alkyl or aryl;R.sup.2 hydrogen or C.sub.1 -C.sub.4 -alkyl;X CN; COOR.sup.3 where R.sup.3 is C.sub.1 -C.sub.6 -alkyl or benzyl; C(O)R.sup.4 where R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl,are prepared by reacting an alkyne of the formula IIR.sup.1 --C.tbd.C--H IIwith an .alpha.,.beta.-unsaturated compound of the formula IIIR.sup.2 HC.dbd.CH--X IIIin the presence of a homogeneous rhodium-phosphine catalyst, in a process wherein a catalyst with a bidentate or tridentate phosphine compound is used.Type: GrantFiled: April 12, 1996Date of Patent: March 3, 1998Assignee: BASF AktiengesellschaftInventors: Thomas Ruhl, Jochem Henkelmann, Marc Heider, Peter Hofmann
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Patent number: 5714489Abstract: 2,3(1H,4H)-quinoxalinediones of the formula I ##STR1## where R.sup.1 is hydrogen, an aliphatic radical which has up to 12 carbons and can be substituted by one of the following: phenyl, cyclopentyl, cyclohexyl or --CO--R.sup.3, --CO--O--R.sup.3 or --CO--NH--R.sup.3, where R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, benzyl or 1-phenylethyl,a cycloaliphatic radical with up to 12 carbons or phenyl, where the cyclic groups in R.sup.1 can have up to three of the following substituents: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, halogen, nitro, cyano, --CO--O--R.sup.3 and --CO--NH--R.sup.3 ;R.sup.2 is 1-pyrrolyl which can have up to two of the following substituents: C.sub.1 -C.sub.4 -alkyl, phenyl, phenylsulfonyl, nitro, cyano and --CO--O--R.sup.3, --CO--NH--R.sup.3, --CH.sub.2 --O--R.sup.3, --O--R.sup.3 and --CH.dbd.NO--R.sup.3R radicals are identical or different and are the following: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.Type: GrantFiled: August 8, 1995Date of Patent: February 3, 1998Assignee: BASF AktiengesellschaftInventors: Wilfried Lubisch, Berthold Behl, Hans Peter Hofmann
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Patent number: 5702785Abstract: According to the invention, an elastic sealing foil for an inside door panel of a motor vehicle door is formed to provide a receiving device which can be changed from a manufactured position into an installed position. In the manufactured position, the receiving device is composed of two formed-out portions which are arranged above one another, have a cross-section with an approximately U-shaped profile and extend in the opposite directions. These formed-out portions are connected to one another by way of a common wall section. In the installed position, the receiving device projects through an opening of the inside door panel, and downward into the hollow space of the door body, and envelopes an audio or accessory part inserted into the receiving device, providing a water-tight seal with respect to the hollow space of the door body.Type: GrantFiled: April 24, 1995Date of Patent: December 30, 1997Assignee: Dr. Ing. h.c.F. Porsche AGInventors: Markus Kuebler, Peter Hofmann
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Patent number: 5654310Abstract: Triazolopyrimidines of the formula ##STR1## where A, D and X have the meanings stated in the description, and their preparation are described. The novel compounds are suitable for controlling diseases.Type: GrantFiled: June 1, 1995Date of Patent: August 5, 1997Assignee: BASF AktiengesellschaftInventors: Rainer Schlecker, Hans-Joerg Treiber, Berthold Behl, Hans Peter Hofmann
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Patent number: 5580574Abstract: A pharmaceutical composition for transdermal delivery comprising an effective amount of an active ingredient selected from a benzodiazepine and a benzodiazepine antagonist; isopropanol; propylene glycol; oleic acid; and water. Additionally, the composition may contain diacetin, Cetiol B.RTM., caprylic acid, Silicon fluid, Miglyol.RTM. 840 or transcutol.Type: GrantFiled: April 28, 1994Date of Patent: December 3, 1996Assignee: Hoffmann-La Roche Inc.Inventors: Charanjit R. Behl, Peter Hofmann
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Patent number: 5401845Abstract: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.Type: GrantFiled: March 11, 1994Date of Patent: March 28, 1995Assignee: Ciba-Geigy CorporationInventors: Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke
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Patent number: 5340855Abstract: The invention relates to the novel compound 3,9-bis(1,2,2,6,6-pentamethyl-4-piperidyloxy)-2,4,8,10-tetraoxa-3,9-diphos phaspiro[5,5]undecane of formula I ##STR1## This compound can be used as stabilizer for organic material, especially as processing stabilizer for polyethylene and polypropylene.Type: GrantFiled: May 17, 1993Date of Patent: August 23, 1994Assignee: Ciba-Geigy CorporationInventors: Hans R. Meier, Peter Hofmann
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Patent number: 5322871Abstract: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.Type: GrantFiled: April 20, 1993Date of Patent: June 21, 1994Assignee: Ciba-Geigy CorporationInventors: Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke
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Patent number: 5259908Abstract: Heat-vulcanizable adhesives for the bonding of solids, the adhesive contains polybutadiene or a polybutadiene mixture and/or copolymers of butadiene with ethylenically unsaturated monomers and other vulcanizable components, and at least 0.5% by weight (based on the weight of vulcanizable components) of a metal salt as a hardening catalyst. The adhesive is particularly useful in vehicle assembly. The adhesive in less than 5 hours exposure to air forms a protective skin which imparts washer resistance to the adhesive.Type: GrantFiled: July 18, 1990Date of Patent: November 9, 1993Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Hans J. Buecken, Julius Herold, Peter Hofmann
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Patent number: 5239076Abstract: The invention relates to the novel compound 3,9-bis(1,2,2,6,6-pentamethyl-4-piperidyloxy)-2,4,8,10-tetraoxa-3,9-diphos phaspiro[5,5]undecane of formula I ##STR1## This compound can be used as stabilizer for organic material, especially as processing stabilizer for polyethylene and polypropylene.Type: GrantFiled: August 10, 1992Date of Patent: August 24, 1993Assignee: Ciba-Geigy CorporationInventors: Hans R. Meier, Peter Hofmann
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Patent number: 5180800Abstract: Finely divided polysaccharide graft polymers having a high absorption capacity for urine and water are prepared by semi-continuous reverse-phase suspension polymerization, in which an aqueous solution of an unsaturated carboxylic acid and an initiator is metered continuously into a suspension of a polysaccharide in an organic solvent and the polymer obtained is subsequently partial dehydrated and the crosslinked.Type: GrantFiled: May 3, 1991Date of Patent: January 19, 1993Assignee: Starchem GmbHInventors: Klaus Heidel, Frank Krause, Peter Hofmann
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Patent number: 5149742Abstract: Heat curable adhesives, based on polybutadiene containing hydroxyl groups, which have a content of (a) polybutadiene having a number average molecular weight of from about 1000 to 3500 and OH values in the range from about 20 to 100; (b) blocked multi-isocyanates, (c) sulfur and (d) conventional vulcanization accelerators, an which may also contain conventional, especially mineral, fillers, pigments and/or auxiliaries, show good elasticity behavior and high tensile shear strength after curing and have a relatively low viscosity favorable for processing before curing.Type: GrantFiled: December 1, 1988Date of Patent: September 22, 1992Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Richard Hemel, Julius Herold, Hans-Juergen Buecken, Peter Hofmann
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Patent number: 5147911Abstract: Compounds of formula I ##STR1## wherein n is 2-4, R.sub.1 is alkyl, cycloalkyl, phenylalkyl, phenyl or a radical of formula II ##STR2## R.sub.2, R.sub.3 and R.sub.4 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, or R.sub.3 and R.sub.4 together are alkyl, R.sub.5 and R.sub.6 are independently hydrogen, alkyl, cycloalkyl or phenylalkyl, R.sub.7 is hydrogen, alkyl or a group of the formula --(CH.sub.2).sub.k COOR.sub.8, where k is 0-2 and R.sub.8 is hydrogen or alkyl, and T is an n-valent hydrocarbon radical which may be interrupted by heteroatoms, are useful stabilizers for substrates subject to the deleterious effects of oxygen, heat and/or actinic radiation.Type: GrantFiled: September 23, 1991Date of Patent: September 15, 1992Assignee: Ciba-Geigy CorporationInventors: Peter Hofmann, Paul A. Odorisio, Glen T. Cunkle, Don Sabrsula