Patents by Inventor Rainer A. Guggenberger
Rainer A. Guggenberger 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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Publication number: 20040141960Abstract: The invention relates to a method for the determination of the patient-related risk of caries by determination of lactic acid and/or lactate in saliva and to a method for the location-specific determination of the patient-related risk of caries.Type: ApplicationFiled: March 11, 2004Publication date: July 22, 2004Inventors: Ingo Hberlein, Ingo Wagner, Rainer Guggenberger, Thomas Bkenkamp, Christian Steinbeiss, Michaela Bader-Danziger
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Publication number: 20040091429Abstract: Fine-grained powders or powder mixtures can be used to provide for spray cleaning of supragingival tooth surfaces. The abrasion of the tooth surface by the spraying of powder does not exceed 0.15 mm3 in relation to a tooth surface of 10 mm2 during a spray period lasting 2 minutes at a pressure of 4 bars and a distance of no more than 2.5 mm between the tooth surface and nozzle of the spray jet.Type: ApplicationFiled: January 16, 2003Publication date: May 13, 2004Inventors: Thomas Flemmig, Bernd Gangnus, Rainer Guggenberger, Ingo Haberlein, Bettina Windmmuller
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Publication number: 20040024113Abstract: The invention relates to polymerizable compositions comprisingType: ApplicationFiled: March 18, 2003Publication date: February 5, 2004Applicant: ESPE Dental AGInventors: Wolfgang Weinmann, Oswald Gasser, Rainer Guggenberger, Gunther Lechner, Wolfgang Soglowek, Joachim Zech
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Patent number: 6648644Abstract: The invention relates to the use of fine powders or powder mixtures for the preparation of an agent for powder-jet cleansing of dental root surfaces, wherein the powders or powder mixtures provide a density of no more than 2.0 g/cm3 and/or a mean particle size of no more than 45 &mgr;m.Type: GrantFiled: October 18, 2001Date of Patent: November 18, 2003Assignee: ESPE Dental AGInventors: Thomas Flemmig, Bernd Gangnus, Oswald Gasser, Rainer Guggenberger
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Patent number: 6624236Abstract: The invention relates to polysiloxanes from cross-linkable monomers based on cyclosiloxanes and their use in polymerizable compositions. The invention relates in particular to polysiloxanes from sol-gel-condensable cyclosiloxane(meth)acrylates as well as resinous compositions, obtainable by hydrolytic condensation of one or more hydrolyzable and condensable cyclosiloxane(meth)acrylates.Type: GrantFiled: September 19, 2001Date of Patent: September 23, 2003Assignee: 3M Espe AGInventors: Peter Bissinger, Oswald Gasser, Rainer Guggenberger, Wolfgang Soglowek, Gunther Eckhardt
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Patent number: 6566413Abstract: The invention relates to novel cyclic siloxane compounds of the following general formula (I): in which: n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 preferably 1, 2, 3, 4, 5; A=H or C1-C15 alk(en)yl, C3-C15 cycloalk(en)yl, C6-C12 aryl, C8-C18 alkaryl, where, in the said radicals, in each case one or more C atoms can be replaced by O, C═O, O(C═O), SiR2 and/or NR, R being an aliphatic radical with 1 to 7 C atoms, in which one or more C atoms can be replaced by O, C═O, and/or O(C═O); B=E or a linear, branched or polycyclic aliphatic- or aromatic-groups-containing hydrocarbon radical which links 2 to 10 of the cyclosiloxane radicals defined above, less B, to one another and contains 2 to 50 C atoms and additionally 0 to 30 other atoms from the group O, N, S, P, Si, Cl, F, Br, I and from which correspondingly 1 to 9, preferably 1 to 4 of the above defined cyclosiloxane radicals, less B, are pending; E=A or a polymerizable group G—Q—L, where oType: GrantFiled: September 19, 2001Date of Patent: May 20, 2003Assignee: 3M ESPE AGInventors: Wolfgang Weinmann, Joachim Zech, Oswald Gasser, Rainer Guggenberger, Gunther Eckhardt, Peter Bissinger, Wolfgang Soglowek
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Publication number: 20020002212Abstract: The invention relates to polymerizable compositions comprisingType: ApplicationFiled: January 16, 2001Publication date: January 3, 2002Applicant: Espe Dental AGInventors: Wolfgang Weinmann, Oswald Gasser, Rainer Guggenberger, Gunther Lechner, Wolfgang Soglowek, Joachim Zech
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Patent number: 6245828Abstract: The present invention is directed to polymerizable dental compositions containing a) 3 to 80 wt. % of cycloaliphatic epoxides; b) 0 to 80 wt. % of an epoxide or a mixture of epoxides which are different from a); c) 3 to 85 wt. % of a filer material; d) 0.01 to 25 wt. % of initiators, inhibitors and/or accelerators; e) 0 to 25 wt. % of auxiliary agents, the individual percentages of which are in relation to the total weight. The new polymerizable agents are particularly suited as dental material.Type: GrantFiled: September 21, 1998Date of Patent: June 12, 2001Assignee: ESPE Dental AGInventors: Wolfgang Weinmann, Oswald Gasser, Rainer Guggenberger, Gunther Lechner, Wolfgang Soglowek, Joachim Zech
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Patent number: 6034152Abstract: Dental composites are provided on the basis of customary polymerizable monomers, initiators, fillers and other auxiliaries, which additionally contain the plaque-inhibiting addition of salts of acid-functional polymers having mono- or polyvalent cations.Type: GrantFiled: March 27, 1998Date of Patent: March 7, 2000Assignees: THERA Patent GmbH & Co. KG, Gesellschaft fur industrielle SchutzrechteInventors: Bernd Burger, Bernd Gangnus, Rainer Guggenberger
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Patent number: 5968998Abstract: Dental compositions based on an bifunctional or polyfunctional acrylic-acid and/or methacrylic-acid esters, which contain an initiator system for radical polymerization and which additionally contain a compound of the general formula ##STR1## in which: Ar represents aryl or substituted aryl,R.sup.1, R.sup.2 and R.sup.3 represent hydrogen, aryl or substituted aryl, straight-chain or branched chain C.sub.1-18 -alkyl, C.sub.1-18 -alkoxyl or C.sub.1-17 -alkoxycarbonyl, in which alkyl and alkoxyl can be substituted by halogen or aryl,in which, R.sup.1 or R.sup.2, when represented by aryl or substituted aryl, C.sub.1-18 -alkyl or C.sub.1-18 -alkoxyl, can be linked with Ar by a single-bond andin which, Ar, when represented by phenyl, C.sub.1-18 -alkylphenyl, C.sub.1-18 -alkoxylphenyl, carboxyl-C.sub.1-17 -alkylphenyl or halogenphenyl, R.sup.2 can be represented by --O--, which is linked with the phenyl or phenyl moiety of Ar to a benzofuran, andin which at least one of R.sup.1 to R.sup.Type: GrantFiled: April 16, 1993Date of Patent: October 19, 1999Assignee: ESPE Stiftung & Co. Produktions-und Vertriebs KGInventors: Peter Jochum, Rainer Guggenberger, Gunther Lechner, Klaus Ellrich
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Patent number: 5583164Abstract: Dental compositions based on an at least bifunctional or polyfunctional acrylic-acid and/or methacrylic-acid esters, which contain an initiator system for radical polymerization and which additionally contain a compound of the general formula ##STR1## in which: Ar represents aryl or substituted aryl,R.sup.1, R.sup.2 and R.sup.3 represent hydrogen, aryl or substituted aryl, straight-chain or branched chain C.sub.1-18 -alkyl, C.sub.1-18 -alkoxyl or C.sub.1-17 -alkoxycarbonyl, in which alkyl and alkoxyl can be substituted by halogen or aryl,in which, R.sup.1 or R.sup.2, when represented by aryl or substituted aryl, C.sub.1-18 -alkyl or C.sub.1-18 -alkoxyl, can be linked with Ar by a single-bond andin which, Ar, when represented by phenyl, C.sub.1-18 -alkylphenyl, C.sub.1-18 -alkoxylphenyl, carboxyl-C.sub.1-17 -alkylphenyl or halogenphenyl, R.sup.2 can be represented by --O--, which is linked with the phenyl or phenyl moiety of Ar to a benzofuran, andin which at least one of R.sup.1 to R.sup.Type: GrantFiled: May 25, 1995Date of Patent: December 10, 1996Assignee: ESPE Stiftung & Co. Produktions-und Vertriebs KGInventors: Peter Jochum, Rainer Guggenberger, Gunther Lechner, Klaus Ellrich
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Patent number: 5569691Abstract: The invention relates to a rubber-elastic composition which comprises a polyether material, and which in the completely vulcanized and completely polymerized form, contain 0.1 to 15 wt. %, relative to the total weight of the composition, of at least one hydrophilic nature imparting agent selecting from the group consisting of a hydrophilic silicone oil having one or more siloxane groups as a hydrophobic part and one or more ether groups as a hydrophilic part, a fluorinated hydro-carbon, a block copolymer of ethylene oxide/propylene oxide, a fatty alcohol derivative, an alkyl phenol derivative, a fatty amine, an amine oxide, a fatty acid glycol and glycerin derivative, a fatty acid, and a fatty acid monoester. The composition is suitable as dental impression composition and has, in the completely polymerized state, even with multiple disinfections in an aqueous disinfecting solution, a continuing good ability to flow on (small wetting angle) and an unchanged dimensional stability.Type: GrantFiled: March 7, 1994Date of Patent: October 29, 1996Assignee: Thera Patent GmbH & Co. KG Gesellschaft fur Industrielle SchutzrechteInventors: Rainer Guggenberger, Erich Wanek, Oswald Gasser
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Patent number: 5548002Abstract: It has been found that silicone resins which contain alkoxy functional groups and harden rapidly in the presence of moisture allow suitable one-component formulations as provisional fixing materials. The hardening rate can be adjusted by addition of suitable activators.Type: GrantFiled: March 15, 1995Date of Patent: August 20, 1996Assignee: Heraeus Kulzer GmbH & Co. KGInventors: Peter Schwabe, Ottfried Schlak, Jens Winkel, Rainer Guggenberger, Oswald Gasser
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Patent number: 5520922Abstract: There are provided formable compositions which comprise:(A) 25 to 80% by weight of a glass ionomer cement, containing (a) an aluminum fluorosilicate glass, (b) at least one polymeric polyacid with an average molecular weight >500, (c) water and (d) optionally a chelating agent;(B) and 20 to 75% by weight of a fluoride and/or oxide and/or mixed fluoride and/or mixed oxide of heavy metal elements which are essentially insoluble at ambient temperatures in an aqueous solution containing the polymeric polyacid and/or an aqueous solution containing the chelating agent.The compositions are especially well suited as filling materials for dental root canals.Type: GrantFiled: October 18, 1994Date of Patent: May 28, 1996Assignee: THERA Patent GmbH & Co. KG, Gesellschaft fur industrielle SchutzrechteInventors: Oswald Gasser, Rainer Guggenberger
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Patent number: 5424133Abstract: A process of preparing a substrate surface for a subsequent adhesive bond, coating or pouring operation, by applying to the substrate an adhesion promoting composition comprising either:(A), (B) and (C); or (A) and (C); or (B) and (C); or (B) of the following ingredients (A)-(C):(A) 0.01 to 90 wt. % of optionally silanized material with a particle size <5 .mu.m and a hardness greater than that of the substrate surface,(B) 20 to 100 wt. % of silanized, silicon-containing material with an average particle size of 2 to 2100 .mu.m,(C) an abrasion agent with a particle size 5 .mu.m as the remainder;wherein the quantities quoted are relative to the total weight of (A)-(C). In the process the composition is applied to the substrate surface using horizontal or predominantly horizontal forces of friction, so that an adhesion promoting layer is formed on the substrate surface.Type: GrantFiled: March 3, 1994Date of Patent: June 13, 1995Assignee: THERA Patent GmbH & Co. KG Gesellschaft fur industrielle SchutzrechteInventors: Gunther Eckhardt, Rainer Guggenberger, Peter Koran, Reinhold Nowak, Bernd Burger
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Patent number: 5250585Abstract: A dental material in powder form and being based on(a) aluminum fluorosilicate glass,(b) base metals suitable for dental use, or alloys of these with each other, and optionally(c) dry polycarboxylic acid and/or(d) a chelating agent,which contains at least some of constituent (a) as a sintered mixture with constituent (b).Type: GrantFiled: March 21, 1990Date of Patent: October 5, 1993Assignee: ESPE Stiftung & Co. Produktions- und Vertriebs KGInventors: Rainer Guggenberger, Klaus Ellrich, Oswald Gasser, John W. McLean, Owen Makinson
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Patent number: 5244933Abstract: Curable compositions are described which contain a binder and a high propion of fillers having a mean grain size of <50 .mu.m. The filler proportion of the curable compositions is so high that they cannot be used for the intended purpose because of their high viscosity However, they can be liquefied by exposure to oscillation in the frequency range of 20 Hz to 20 MHz with an amplitude of 1 .mu.m to 5 mm so that they are workable and can be employed for the intended purpose.Type: GrantFiled: October 11, 1991Date of Patent: September 14, 1993Assignee: Thera Patent GmbH & Co. KG Gesellschaft fur industrielle SchutzrechteInventors: Stefan Eidenbenz, Klaus Ellrich, Oswald Gasser, Rainer Guggenberger, Andreas Iburg, Peter Koran, Michael J. Noack, Reinhold Nowak, Francois Roulet, Klaus-Peter Stefan, Werner Zollner
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Patent number: 5224957Abstract: A method is provided for treating cataracts and other eye diseases, and includes the use of photopolymerizable compositions for preparing an intraocular-lens filling material which is used during an operation with an inserted intraocular-lens shell. The photopolymerizable compositions contain the following components:a) 90-99.99% by weight, preferably 94-99.799% by weight of at least one at least difunctional acrylic and/or methacrylic acid ester,b) 0.01-5% by weight, preferably 0.1-2% by weight, of at least one photoinitiator which is activatable with light in the wavelength range 400-500 nm,c) 0-9.98% by weight, preferably 0.001-2% by weight, of a UV-absorber which can absorb light of wavelengths <400 nm, andd) 0-9.98% by weight, preferably 0.1-2% by weight, of other auxiliary substances, such as dyes or activators for the photoinitiator, for example tertiary amines,the quantity particulars referring in each case to the total mass.Type: GrantFiled: August 22, 1990Date of Patent: July 6, 1993Assignees: THERA Patent GmbH & Co., KG Gesellschaft fur industrielle SchutzrechteInventors: Oswald Gasser, Erich Wanek, Rainer Guggenberger, Klaus-Peter Stefan, Klaus Ellrich
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Patent number: 5185184Abstract: In a process for the preparation of a substrate surface for the bonding thereof with an activatable adhesive, an adhesion promoter layer is applied by means of sandblasting with a sandblasting material to which an activator has been added. Optionally, said adhesion promoter layer may be subsequently silanized.Type: GrantFiled: March 1, 1991Date of Patent: February 9, 1993Assignee: THERA Patent GmbH & Co., KGInventors: Peter Koran, Oswald Gasser, Rainer Guggenberger
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Patent number: 5154791Abstract: A method for bonding or potting substrates by means of cationically polymerizable masses being activated before joining or potting by irradiation with visible light and curing after joining or potting of the substrates without the irradiation being continued is described as well as an apparatus for executing this method. By irradiation with light having a wavelength of from 400 to 600 nm for photo-activation of said masses, a prolonged pot life of said masses without reducing their wetting ability during pot life is obtained such that the masses are unlimitedly applicable for more than 30, preferably more than 100 sec. after exposure is finished. The apparatus according to the invention comprises a source of irradiation which exclusively emits light having a wavelength of >400 nm.Type: GrantFiled: March 22, 1990Date of Patent: October 13, 1992Assignee: Thera Patent GmbH & Co. KG Gesellschaft fur industrielleInventors: Oswald Gasser, Erich Wanek, Klaus Ellrich, Rainer Guggenberger