Patents by Inventor Leo Berger

Leo Berger 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).

  • Patent number: 11125544
    Abstract: An ammunition inspection assembly that includes a cartridge tester having a main body portion with a bore extending axially therethrough, a bullet pusher, and a case pusher. The bore includes an inner surface, a front opening and a rear opening and is configured to receive a bullet cartridge therein.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: September 21, 2021
    Assignee: AUSKUR FIREARMS AND MUNITIONS, INC.
    Inventor: Leo Berger
  • Publication number: 20200309491
    Abstract: A covered projectile that includes a projectile having a nose portion, a middle portion, a rear portion, and a plurality of fins extending outwardly from the rear portion, and a jacket that surrounds at least a portion of the projectile and includes an exterior surface and an interior surface. The jacket includes a front cone. A plurality of annular grooves are defined in the exterior surface of the jacket.
    Type: Application
    Filed: May 13, 2019
    Publication date: October 1, 2020
    Inventor: Leo Berger
  • Publication number: 20190186883
    Abstract: An ammunition inspection assembly that includes a cartridge tester having a main body portion with a bore extending axially therethrough, a bullet pusher, and a case pusher. The bore includes an inner surface, a front opening and a rear opening and is configured to receive a bullet cartridge therein.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Inventor: Leo Berger
  • Patent number: 10240907
    Abstract: An ammunition inspection assembly that includes a cartridge tester having a main body portion with a bore extending axially therethrough, a bullet pusher, and a case pusher. The bore includes an inner surface, a front opening and a rear opening and is configured to receive a bullet cartridge therein.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: March 26, 2019
    Assignee: AUSKUR FIREARMS AND MUNITIONS, INC.
    Inventor: Leo Berger
  • Publication number: 20170363399
    Abstract: An ammunition inspection assembly that includes a cartridge tester having a main body portion with a bore extending axially therethrough, a bullet pusher, and a case pusher. The bore includes an inner surface, a front opening and a rear opening and is configured to receive a bullet cartridge therein.
    Type: Application
    Filed: June 15, 2017
    Publication date: December 21, 2017
    Inventor: Leo Berger
  • Patent number: 5022654
    Abstract: A transparent container having a liquid therein, and dice in the liquid, of light weight and thus floating. The container also having therein an object of greater density than the liquid, thus constituting a sinking body. Upon reversing the container top-to-bottom, the dice float to the top and the body sinks to the bottom, wherein the dice and body move in opposite directions, have mutual engagement, or collide, effecting rotation or turning of the dice. When the dice reach the top of the container, the dice are read through the transparent top. In another embodiment, rods are mounted in the container, and extend toward the middle, which the dice engage, and the dice are thereby turned or tumbled. One form includes bars or pieces, instead of dice, with inscriptions thereon. In another form, balls are used and "fall" (rise) into holes in a roulette-type member.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: June 11, 1991
    Assignee: Idea+Invent AG
    Inventor: Leo Berger
  • Patent number: 4972788
    Abstract: In an aquatic vehicle with one or more hulls, a chamber (10) is formed in the boat or hull (19, 7). The chamber has at least one opening (13) which can be closed via a closing element (14) and at least one vent (20). The closing element (14) opens the opening (13) by itself when the boat or hull (19, 7) is immersed in the water and closes it by itself when the boat or hull (19, 7) is raised out of the water.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: November 27, 1990
    Inventor: Leo Berger
  • Patent number: 4732902
    Abstract: The invention relates to long-acting depot producing antipsychotic pyrroloisoquinolinyl-dimethyloxoalkyl alkanoates of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently, are hydrogen, alkyl of 1 to 4 carbon atoms, cycloalkyl or alkenyl, or taken together are alkylene of 3 to 6 carbon atoms; and R.sub.3 is hydrogen, alkyl, hydroxyalkyl, phenylhydroxyalkyl, halophenylhydroxyalkyl, alkylphenylhydroxyalkyl, alkoxyphenylhydroxyalkyl, alkoxyalkyl, aryloxyhydroxyalkyl, alkoxyhydroxyalkyl, acyloxyalkyl, arylcarbonylalkyl, alkoxycarbonylalkyl, aralkyl, alkenyl, alkylcycloalkyl, alkynyl, thienylalkyl, furylalkyl, arylcarboxamidoalkyl, acylalkyl, cyclic-alkyloxoalkyl, cyclic-alkylhydroxyalkyl, alkenyloxyalkyl, aralkenyl, aryloxyalkyl, or aryl-N-imidazolonylalkyl; R.sub.4 is alkyl; and n is the integer 2 or 3,their corresponding optical isomers, geometric isomers, and mixtures thereof, and the pharmaceutically acceptable acid additional salts.The compounds of formula I are useful as antipsychotic agents.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: March 22, 1988
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Gary L. Olson
  • Patent number: 4707484
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl or acyl; R.sub.2 and R.sub.3 independently are lower alkyl, aralkyl or alkenyl or R.sub.2 and R.sub.3 together form a ring of 5 to 8 carbon atoms; R.sub.4 is phenyl, substituted phenyl, cyclohexyl, substituted cyclohexyl, cyclopentyl, substituted cyclopentyl, cycloheptyl, or substituted cycloheptyl; R.sub.5 is hydrogen or lower alkyl; R.sub.6 is hydrogen, lower alkyl or acyl; and pharmaceutically acceptable acid addition salts thereof are described. The compounds of formula I and pharmaceutically acceptable acid addition salts thereof are anti-emetic agents which lack central nervous system side effects.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: November 17, 1987
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Wallace M. Dairman, Thomas F. Mowles, Gary L. Olson
  • Patent number: 4610989
    Abstract: A method of producing analgesia by administering an opiate alkaloid such as morphine, codeine, oxycodone or a pharmaceutically acceptable acid addition salt thereof together with a carbazole compound, 6-chloro-.alpha.-methyl-carbazole-2-acetic acid, or a salt thereof with a pharmaceutically acceptable base and composition therefor.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: September 9, 1986
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Herman W. Baruth, Jr., Leo Berger, Alfred J. Corraz, Jerry Sepinwall
  • Patent number: 4442291
    Abstract: The present invention is directed to a compound having the formula ##STR1## which is used as an intermediate in the preparation of octahydro-1H-pyrrolo[2,3-g]isoquinolines.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: April 10, 1984
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Gary L. Olson
  • Patent number: 4388467
    Abstract: Neuroleptically active cycloalka[4,5]pyrrolo[2,3-g]isoquinolines of the formula ##STR1## wherein n, R.sub.1, R.sub.2 and X are as hereinafter set forth, and intermediates therefore are described.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: June 14, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Gary L. Olson
  • Patent number: 4349678
    Abstract: Neuroleptically active octahydro-1H-pyrrolo[2,3-g]isoquinolines of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X are as hereinafter set forth, are described.
    Type: Grant
    Filed: December 12, 1980
    Date of Patent: September 14, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Gary L. Olson
  • Patent number: 4334070
    Abstract: Neuroleptically active cycloalka[4,5]pyrrolo[2,3-g]isoquinolines of the formula ##STR1## wherein n, R.sub.1, R.sub.2 and X are as hereinafter set forth, are described.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: June 8, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Gary L. Olson
  • Patent number: 4334078
    Abstract: Dibenzothiophenes of the formula ##STR1## wherein R, R.sub.1 and R.sub.2 are as hereinafter described, prepared, inter alia, from the correspondingly substituted thiophenol and haloketocyclohexane are described. The dibenzothiophenes of the invention are useful antiinflammatory, analgesic and antirheumatic agents.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: June 8, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, John T. Plati, Albert Ziering
  • Patent number: 4260762
    Abstract: Neuroleptically active octahydro-1H-pyrrolo[2,3-g]isoquinolines of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and X are as hereinafter set forth,are described.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: April 7, 1981
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Gary L. Olson
  • Patent number: 4234487
    Abstract: A process for preparing 6-chloro-.alpha.-methylcarbazole-2-acetic acid and esters thereof by the steps of:(a) reacting 6-chloro-1,2,3,4-tetrahydrocarbazole-2-one with a trialkyl-.alpha.-methylphosphonoacetate to yield corresponding 3,4-dihydro-.alpha.-methylcarbazole-2-acetic acid ester; and(b) aromatizing the reaction product of step (a), prior to or after saponification, to yield, respectively, 6-chloro-.alpha.-methylcarbazole-2-acetic acid or ester, is described. Additionally, there are described 6-chloro-1,2,3,4-tetrahydrocarbazole-2-one useful as an intermediate, and dihydrocarbazoles useful as intermediates and/or as anti-inflammatory and antirheumatic agents.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: November 18, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, John W. Scott
  • Patent number: 4222944
    Abstract: Dibenzofurans of the formula ##STR1## wherein R, R.sub.1 and R.sub.2 are as hereinafter described prepared, inter alia, from the correspondingly substituted phenol and haloketocyclohexane are described. The dibenzofurans of the invention are useful anti-inflammatory, analgesic and anti-rheumatic agents.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: September 16, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Robert A. Schmidt
  • Patent number: 4219657
    Abstract: Dibenzothiophenes of the formula ##STR1## wherein R, R.sub.1 and R.sub.2 are as hereinafter described, prepared, inter alia, from the correspondingly substituted thiophenol and haloketocyclohexane are described. The dibenzothiophenes of the invention are useful antiinflammatory, analgesic and antirheumatic agents.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: August 26, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, John T. Plati, Albert Ziering
  • Patent number: 4192809
    Abstract: Dibenzofurans of the formula ##STR1## wherein R, R.sub.1 and R.sub.2 are as hereinafter described, prepared, inter alia, from the correspondingly substituted phenol and haloketocyclohexane are described. The dibenzofurans of the invention are useful antiinflammatory, analgesic and anti-rheumatic agents.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: March 11, 1980
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Leo Berger, Robert A. Schmidt