Patents Represented by Attorney Edmunde D. Riedl
  • Patent number: 4316043
    Abstract: The invention relates to novel [(5,6,9a-substituted-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)-oxy]alkano ic and cycloalkanoic acids and their analogs, esters, salts and derivatives. These compounds are synthesized by methods selected from a number of synthetic routes depending on the particular structure, choice of intermediate or preferred reaction sequence. The compounds are useful in the treatment and prevention of injury to the brain and spinal chord due to accidents, ischemic stroke and hydrocephalus; compositions for such uses are also disclosed.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: February 16, 1982
    Assignee: Merck & Co., Inc.
    Inventors: Edward J. Cragoe, Jr., Gerald E. Stokker, Norman P. Gould
  • Patent number: 4306357
    Abstract: An improved tamperproof container for lyophilized material wherein the container comprises a vial having flange about its opening. Below the flange, but spaced apart therefrom is a shoulder to define an indented neck therebetween. The opening is sealed with a pierceable stopper. An overcap extends over the flange and about the neck to form a skirt about the neck. The skirt has at least a portion thereof extending inwardly in gripping reaction with the neck and limited in removal by contact with the underside of the flange whereby the cap cannot be removed without destroying its structural integrity.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: December 22, 1981
    Assignee: Merck & Co., Inc.
    Inventor: Miguel Villarejos
  • Patent number: 4299805
    Abstract: In a process for regenerating the activated carbon and in the purification of brown phosphoric acid or alkali phosphates obtained via the so-called wet process employing mineral acid digestion of crushed phosphate rock, the activated carbon used to filter brown H.sub.3 PO.sub.4 is removed from service, washed with water, the initial washings being recovered to reclaim phosphoric acid, and then steeped in a basic aqueous solution, e.g., aqueous alkali hydroxide, alkali carbonate, ammonium hydroxide, loweralkyl amines or loweralkanol amines. After again water washing the activated carbon, to remove residual base, the activated carbon is either returned to service or steeped in an aqueous solution of mineral acid, e.g., sulfuric, hydrochloric, or nitric acid, again washed with water to remove residual acid and returned to service. Usually, the acid steep need not be employed with every base cycle to maintain good decolorization, although if desired the acid steep can be used with each caustic cycle.
    Type: Grant
    Filed: August 21, 1979
    Date of Patent: November 10, 1981
    Assignee: Calgon Corporation
    Inventor: Bruce D. Wells
  • Patent number: 4292430
    Abstract: 2,3-Substituted-1,2-isothiazolium salts have antibacterial and antifungal activity and are useful in agriculture against diseases and decay of fruits and vegetables, as well as a slimicide in industry.
    Type: Grant
    Filed: November 23, 1977
    Date of Patent: September 29, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Joshua Rokach, Clarence S. Rooney, Edward J. Cragoe, Jr.
  • Patent number: 4287175
    Abstract: A method of wetting a contact lens present in the human eye which comprises inserting a water soluble solid polymer into the cul-de-sac of the eye.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: September 1, 1981
    Assignee: Merck & Co., Inc.
    Inventor: Irving M. Katz
  • Patent number: 4283393
    Abstract: Virus infections of eye, skin and mucous membrane tissue are effectively treated by controlled release topical application of interferon inducers.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: August 11, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Arthur K. Field, Richard J. Harwood
  • Patent number: 4267341
    Abstract: 2,3-Substituted-1,2-isothiazolium salts have antibacterial and antifungal activity and are useful in agriculture against diseases and decay of fruits and vegetables, as well as a slimicide in industry.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: May 12, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Joshua Rokach, Clarence S. Rooney, Edward J. Cragoe, Jr.
  • Patent number: 4260760
    Abstract: Novel diphenyl and loweralkyl substituted diphenyl polyamines are useful antimicrobial agents, as well as algae inhibitors. They are especially useful because of their low toxicity, and as such are advantageously included as the active agent in surgical scrubs, antibacterial soaps, as preservatives in cosmetic preparations, and the like. They also can be used for topical treatment of dermatological conditions having a bacterial origin or implication such as Acne vulgaris.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: April 7, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Richard A. Dybas, Nathaniel Grier, Bruce E. Witzel
  • Patent number: 4252571
    Abstract: An admixture of granular activated carbon (GAC) and bone char (BC) can be effectively employed to decolorize and to deash white cane sugar liquors. Use of this admixture in place of bone char exclusively results in significantly improved decolorization. The GAC/BC admixture can be effectively reactivated at a temperature within the limit of 900.degree. F. to 1200.degree. F.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: February 24, 1981
    Assignee: Calgon Corporation
    Inventor: Phillip B. Reilly
  • Patent number: 4247700
    Abstract: Antimicrobial agents suitable for use in aqueous systems for their preservation against biodeterioration include substitutedpiperidinomethyl-propenenitriles and propanenitriles. The unsaturated compounds are prepared by reaction of a suitable piperidine with cyano acetic acid and formaldehyde: the propane derivatives therefrom by nucleophilic addition. spThis application is a continuation-in-part of Ser. No. 795,693, filed May 11, 1977, now abandoned.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: January 27, 1981
    Assignee: Merck & Co., Inc.
    Inventors: Nathaniel Grier, Richard A. Dybas, Bruce E. Witzel
  • Patent number: 4215096
    Abstract: Gas streams contaminated with acid and acid precursor gases and vapors are purified by contacting the gas streams with activated carbon impregnated with sodium hydroxide.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: July 29, 1980
    Assignee: Calgon Corporation
    Inventors: Rabindra K. Sinha, Charles K. Polinsky, S. David Cifrulak, Norman J. Wagner
  • Patent number: 4211333
    Abstract: An improved tamperproof container for lyophilized material wherein the container comprises a vial having flange about its opening. Below the flange, but spaced apart therefrom is a shoulder to define an indented neck therebetween. The opening is sealed with a pierceable stopper. An overcap extends over the flange and about the neck to form a skirt about the neck. The skirt has at least a portion thereof extending inwardly in gripping relation with the neck and limited in removal by contact with the underside of the flange whereby the cap cannot be removed without destroying its structural integrity.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: July 8, 1980
    Assignee: Merck & Co., Inc.
    Inventor: Miguel Villarejos
  • Patent number: 4208232
    Abstract: Insulation members having spaced apart walls, and at least a partial vacuum in the chamber defined by the walls are filled with activated carbon. The filling is accomplished under vacuum conditions, and activated carbon, degassed and having a density of greater than 0.3 grams/cm.sup.3 is employed to at least partially fill the chamber.
    Type: Grant
    Filed: June 15, 1978
    Date of Patent: June 17, 1980
    Assignee: Calgon Corporation
    Inventor: Norman J. Wagner
  • Patent number: 4195085
    Abstract: Antiglaucoma compositions containing t-butylamino-3-(4-morpholino-1,2,5-thiadiazol-3-yloxy)-2-propanol hydrogen maleate and method of treating elevated intraocular pressure.
    Type: Grant
    Filed: August 29, 1978
    Date of Patent: March 25, 1980
    Assignee: Merck & Co., Inc.
    Inventor: Clement A. Stone
  • Patent number: 4185082
    Abstract: A carbon supported catalyst used for carbon monoxide oxidation is chemically modified by treating the activated carbon support with an oxidizing agent and/or a hydrophobic compound prior to impregnation with the catalyst mixture. The thus treated catalytic carbon is capable of oxidizing carbon monoxide in an air stream containing sulfur dioxide over an extended period of time.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: January 22, 1980
    Assignee: Calgon Corporation
    Inventor: Rabindra K. Sinha
  • Patent number: 4183356
    Abstract: An ophthalmic applicator device for mechanically inserting solid medicaments in the form of inserts into the cul-de-sac of the eye, comprising an elongated tip of non-toxic, pliable material terminating in a groove through an end of said tip sufficient to form two flexible, opposed termini of said tip whereby said insert is releasably gripped by frictional engagement between said termini; said groove having cross-sectional conformation and dimensions sufficient to releasably grip said insert, and at least one dimension sufficiently less than the greatest dimension of said insert to result in removal of said insert from the ophthalmic applicator device by contact of said insert with the cul-de-sac of the eye; and a handle attached to said tip at the end of said tip opposite said termini, and forming an interior angle therewith of from about 30.degree. to about 120.degree..
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: January 15, 1980
    Assignee: Merck & Co., Inc.
    Inventor: Neil W. Miller
  • Patent number: 4182926
    Abstract: Methanol is vaporized at a temperature of from about 200.degree. C.-455.degree. C. and passed over a cobalt molybdate catalyst or a doped cobalt molybdate catalyst at a flow rate of from 60-200 cc./minute. The effluent gas comprises essentially methane and hydrogen in addition to some water vapors and CO.sub.2.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: January 8, 1980
    Assignee: Merck & Co., Inc.
    Inventor: David D. Saperstein
  • Patent number: 4179497
    Abstract: Solid unit dosage medicaments which are suitable for use in animals and humans are prepared with hydroxypropyl cellulose as the primary formulating excipient. These medicaments are particularly suitable for ophthalmic use since they are slowly but completely water soluble when they are inserted in the cul-de-sac of the eye and thus provide for a convenient means of prolonged treatment of the eye with concomitant reduced dosing frequency.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: December 18, 1979
    Assignee: Merck & Co., Inc.
    Inventors: Edward M. Cohen, Wayne M. Grim, Richard J. Harwood, Gunvant N. Mehta
  • Patent number: 4172094
    Abstract: Novel diphenyl and loweralkyl substituted diphenyl polyamines are useful antimicrobial agents, as well as algae inhibitors. They are especially useful because of their low toxicity, and as such are advantageously included as the active agent in surgical scrubs, antibacterial soaps, as preservatives in cosmetic preparations, and the like. They also can be used for topical treatment of dermatological conditions having a bacterial origin or implication such as Acne vulgaris.
    Type: Grant
    Filed: December 3, 1976
    Date of Patent: October 23, 1979
    Assignee: Merck & Co., Inc.
    Inventors: Richard A. Dybas, Nathaniel Grier, Bruce E. Witzel
  • Patent number: 4167630
    Abstract: Through total synthesis methods developed in the assignee's laboratories, new as well as old penicillin and cephalosporin compounds (all containing the beta-lactam functional group) have been prepared. One of the key intermediates prepared by total synthesis has the 7-amino (6-amino in the case of a penicillin derivative) group in the alpha configuration. The instant invention provides a general route for preparing the 7.beta.-amino (or 6.beta.-amino) compound, through the formation of an imino-containing intermediate, followed by hydrolysis to the desired epimer. Novel intermediate products are provided. The compounds having the desired beta epimer can be converted to acylaminoantibiotics.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: September 11, 1979
    Assignee: Merck & Co., Inc.
    Inventor: Raymond A. Firestone