Patents Represented by Attorney Robert H. Falk
  • Patent number: 4107206
    Abstract: The present invention relates to novel biologically active tricyclic compounds of the general formula: ##STR1## and salts thereof, IN WHICHR.sub.1 and R.sub.2 stand for hydroge, alkyl or alkenyl, an optionally substituted aralkyl group or an acyl group orR.sub.1 + r.sub.2 together with the nitrogen atom represent a heterocyclic 5- or 6-membered ring, andX and Y stand for hydrogen, hydroxy, halogen, alkyl or alkoxy of 1-6 carbon atoms, nitro, trifluoromethyl or an acyloxy group,Which compounds have valuable biological activities, particularly anorectic activity.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: August 15, 1978
    Assignee: Akzona Incorporated
    Inventors: Colin Leslie Hewett, David Samuel Savage
  • Patent number: 4104371
    Abstract: Biologically active novel peptides and peptide-derivatives of the general formula: ##STR1## where A represents H-(L or D)Met, H-(L or D)Met(.fwdarw.O), H-(L or D)Met(.fwdarw.O.sub.2)desamino-Met, desamino-Met(.fwdarw.O),desamino-Met(.fwdarw.O.sub.2) or the group H.sub.2 N--B--CO--;B represents a branched or straight-chain alkylene (C.sub.1 -C.sub.6) or alkylidene (C.sub.1 -C.sub.6) group;Q represents the amino-acid residue --NH--CHR--CO--;R represents alkyl (C.sub.1 -C.sub.6), p-hydroxyphenylmethyl, 3-indolylmethyl or phenylmethyl;R.sub.1 and R.sub.2 represent hydrogen or an alkyl(1-6C) group, andZ represents N-(phenylalkyl)amino, N-(.beta.-indolylalkyl)amino, L-Trp-OH, L-Phe-OH, L-Trp-Gly-OH or L-Phe-Gly-OH, as well as the functional derivatives thereof.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: August 1, 1978
    Assignee: Akzona Incorporated
    Inventors: Hendrik Marie Greven, David DE Wied
  • Patent number: 4101675
    Abstract: The invention relates to compounds of the general formula: ##STR1## in which one double bond is present between the carbon atom of the quanidine moiety and one of the adjacent nitrogen atoms andR.sub.0 stands for hydrogen, halogen, hydroxy, alkoxy or alkyl (1 to 6 C),R.sub.1, r.sub.2 for halogen, hydroxy, alkyl (1 to 4 C) or alkoxy (1 to 4 C),R.sub.3, r.sub.3 ', r.sub.3 " for hydrogen or alkyl (1 to 4 C), on the understanding that one of the substituents R.sub.3, R.sub.3 ' or R.sub.3 " is absent because of the presence of the double bond,R.sub.4 for hydrogen, alkyl (1-4 C), hydroxy, alkoxy (1-4 C) or amino optionally substituted with one or two alkyl (1 to 4 C) groups,R.sub.5, r.sub.6 for hydrogen, alkyl (1-6 C), acyl or R.sub.5 + R.sub.6 together represent an alkylidene, cyclic alkylidene or aralkylidene group, as well as the acid addition salts thereof,Provided that, if R.sub.4 stands for methyl and R.sub.0, R.sub.3, R.sub.3 ", R.sub.5 and R.sub.6 for hydrogen, R.sub.1 and R.sub.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: July 18, 1978
    Assignee: Akzona Incorporated
    Inventor: Harm Jan Panneman
  • Patent number: 4098802
    Abstract: The invention relates to an oral pharmaceutical preparation with androgenic activity on the basis of one or more esters of testosterone and/or 5.alpha.-dihydrotestosterone, the ester group of which has been derived exclusively from aliphatic carboxylic acids having 9-16 carbon atoms, preferably 10-12 carbon atoms in combination with a non-steroidal lipoid. The preparation may additionally contain a progestational steroid, an oestrogen or a precursor of an A-aromatic steroid.
    Type: Grant
    Filed: May 28, 1976
    Date of Patent: July 4, 1978
    Assignee: Akzona Incorporated
    Inventor: Johannes van der Vies
  • Patent number: 4097338
    Abstract: The present invention relates to a rapid and sensitive method for the determination of a reduced coenzyme, particularly NADH, NADPH and derivatives thereof, in that the fluorescence of such a reduced coenzyme in an aqueous medium is measured in the presence simultaneously of an organic liquid miscible with water and a dipersion of one or more slightly soluble or insoluble substances.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: June 27, 1978
    Assignee: Akzona Incorporated
    Inventors: Aarne Ilmari Konttinen, Bastiaan Cornelis Goverde, Peter Silvester Lambertus Janssen
  • Patent number: 4076726
    Abstract: The invention relates to novel amidino-hydrazone derivatives of the general formula: ##STR1## in which the dotted lines mean one extra bond starting from the (guanidine-) carbon atom to one of the adjacent nitrogen atoms, andA stands for methylene, ethylene, propylene or butylene, which groups may optionally be substituted with alkyl (1-4 C),R stands for hydroxy, alkyl (1-4 C), alkylthio or alkoxy (1-4 C), halogen, trifluoromethyl, nitro, amino, hydroxymethyl, acyloxy or an alkylenedioxy group,N is the number 0, 1, 2, 3 or 4,R.sub.1, r.sub.4 and R.sub.5 represent hydrogen or alkyl (1-4 C), with the proviso that one of them is absent in view of the presence of the double bond,R.sub.2 and R.sub.3 stand for hydrogen, alkyl (1-4 C), aralkyl, aryl, hydroxy or amino, with the proviso thatR.sub.2 + r.sub.3 together may also represent a saturated or unsaturated alkylene group with 2 or 3 carbon atoms, orR.sub.3 + r.sub.
    Type: Grant
    Filed: May 21, 1975
    Date of Patent: February 28, 1978
    Assignee: Akzona Incorporated
    Inventors: Harm Jan Panneman, Antonius Hermanus Nicolaas Maria Bruins
  • Patent number: 4071623
    Abstract: The invention relates to a novel pharmaceutical preparation with oestrogenic activity adapted for oral administration comprising an oestradiol-17.beta.-ester, the ester group of which has been derived from aliphatic carboxylic acids having 9-16 carbon atoms, in combination with a non-steroidal lipoid. The preparation may additionally contain a progestational steroid or an androgen. The invention also relates to novel oestradiol-17.beta.-esters.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: January 31, 1978
    Assignee: Akzona Incorporated
    Inventor: Johannes van der Vies
  • Patent number: 4066744
    Abstract: Disclosed are a reagent and test slide used for serological detection of gonorrheal antibodies in human blood serum or synovial fluid. The reagent comprises latex particles having absorbed on their surfaces an inert protein, such as bovine serum albumin and a heat labile antigen derived from Neisseria gonorrhoeae bacteria exhibiting T.sub.1 colonial morphology. The reagent may be employed by several forms, for example, as a liquid suspension of the latex particles, or in the form of a dried deposit of the latex particles. Regardless of the form employed, the reagent is particularly useful as a routine screening test in hospitals and prenatal clinics to detect gonococcal infection in women and also in cases of complicated gonorrhea, e.g., gonorrheal arthritis where infection is not conveniently detectable by present means. The test slide may have dried thereon an absorbing antigen for heterophile antibodies.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: January 3, 1978
    Assignee: Akzona Incorporated
    Inventors: Richard T. Price, Rita C. Prodell
  • Patent number: 4062848
    Abstract: The invention relates to compounds of the general formula I: ##STR1## or a salt thereof, in which A represents a pyridine ring or a halogen substituted pyridine ring,R.sub.1 represents hydrogen, alkyl (1-6 C), alkoxy (1-6 C), alkylthio (1-6 C), halogen, OH, SH or CF.sub.3R.sub.2 represents hydrogen or a lower alkyl or aralkyl group andn and m may each be 1, 2 or 3 with the proviso that the sum of m and n must be 2, 3 or 4, having CNS activity, a pronounced antihistamine activity and little or no antiserotonin activity.
    Type: Grant
    Filed: March 23, 1976
    Date of Patent: December 13, 1977
    Assignee: Akzona Incorporated
    Inventor: Willem Jacob van der Burg
  • Patent number: 4062840
    Abstract: The invention discloses novel compounds of the general formula: ##STR1## and salts thereof, in which X stands for oxygen, sulphur, the group >NR.sub.7 or the group --CR.sub.8 R.sub.9 --;R.sub.1, r.sub.2, r.sub.3 and R.sub.4 represent hydrogen, hydroxy, halogen, alkyl (1-6 C), alkoxy (1-6 C), alkylthio (1-6 C) or trifluoromethyl;R.sub.5 and R.sub.6 represent hydrogen, alkyl (1-6 C), aralkyl (7-10 C) or together in combination with the nitrogen atom a heterocyclic five- or six-membered ring;R.sub.7 stands for hydrogen or alkyl (1-4 C);R.sub.8 and R.sub.9 stand for hydrogen or methyl,n is the number 0, 1 or 2 andThe dotted line means an optional C--C bond, with valuable central nervous system (CNS) activities, especially antidepressant activity.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: December 13, 1977
    Assignee: Akzona Incorporated
    Inventor: Willem Jacob van der Burg
  • Patent number: 4055394
    Abstract: A test card adapted for the performance of an immunochemical diagnostic or serological test thereon comprises a test surface member and a covering member foldable thereon, the covering member being provided with circular convex windows which when folded over are in registry with circular test areas on the test surface member, permitting visual observation of test results, the inner surface of the covering member having adhered thereto a continuous sheet of an absorbent material which becomes transparent upon contact with a liquid, said sheet extending across the windows and permitting viewing of the test results when the test card is closed. Fixed to both surfaces of the absorbent material is a film of double sided adhesive. This adhesive covers the entire absorbent sheet on both sides except for cut-out areas in registry with the transparent window and reaction area. The adhesive on one side bonds the absorbent material to the cover element.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: October 25, 1977
    Assignee: Akzona Incorporated
    Inventors: Stephen B. Friedman, Carl B. Linnecke
  • Patent number: 4053284
    Abstract: A test apparatus for conducting diagnostic tests on body fluids, said apparatus having (1) a reaction vessel containing immunochemical test reagents supported as on beads and (2) a washing means cooperating with the reaction vessel, said washing means supplying washing fluid for the reaction vessel. The washing means also comprises a vacuum conduit for aspirating the washing fluid out of the reaction vessel. The apparatus is applicable to hepatitis testing.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: October 11, 1977
    Assignee: Akzona Incorporated
    Inventor: Nancy Ann Posch