Patents by Inventor Marcel Grand

Marcel Grand 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).

  • Publication number: 20070294841
    Abstract: The present invention relates to a novel composition of dye baths or processing baths and a process for tinting, dyeing or doping of moulded components with functional additives in these aqueous dipping baths or processing baths. The moulded components contain transparent or translucent (co)polyamides. If the moulded components should be tinted or dyed according to an embodiment of the invention, the dyeing can be performed as homogeneous dyeing or as gradient dyeing. The process according to the present invention is particularly suitable for producing high-value objects like ophthalmic lenses, sun lenses for eyeglasses, magnifying glasses, all kinds of inspection glasses, polarization films and display films, particularly if changing depths of color (gradients) are desired. This generating of a dyeing gradient requires dyeing in a dipping process, whereby the desired depth of color is achieved by multiple times of dipping the surface areas of the moulded article in the dye bath.
    Type: Application
    Filed: September 7, 2007
    Publication date: December 27, 2007
    Inventors: Helmut Thullen, Friedrich Buehler, Marcel Grand
  • Publication number: 20060230553
    Abstract: The present invention relates to a novel composition of dye baths or processing baths and a process for tinting, dyeing or doping of moulded components with functional additives in these aqueous dipping baths or processing baths. The moulded components contain transparent or translucent (co)polyamides. If the moulded components should be tinted or dyed according to an embodiment of the invention, the dyeing can be performed as homogeneous dyeing or as gradient dyeing. The process according to the present invention is particularly suitable for producing high-value objects like ophthalmic lenses, sun lenses for eyeglasses, magnifying glasses, all kinds of inspection glasses, polarization films and display films, particularly if changing depths of color (gradients) are desired. This generating of a dyeing gradient requires dyeing in a dipping process, whereby the desired depth of color is achieved by multiple times of dipping the surface areas of the moulded article in the dye bath.
    Type: Application
    Filed: April 12, 2006
    Publication date: October 19, 2006
    Inventors: Helmut Thullen, Friedrich Buehler, Marcel Grand
  • Patent number: 4652583
    Abstract: Naftidrofuryl can be used to prepare a pharmaceutical which promotes the regeneration of nerve fibers. A neurologically active quantity of N,N-2-diethylaminoethyl-tetrahydro-alpha-(1-naphthylmethyl)-2-furanpropano ate or an addition salt thereof is incorporated in an excipient or an inert, nontoxic, pharmaceutically acceptable vehicle.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: March 24, 1987
    Assignee: Lipha, Lyonnaise Industrielle Pharmaceutique
    Inventors: Michel Mosnier, Marcel Grand
  • Patent number: 4512994
    Abstract: Long-acting forms of theophylline for use in treating asthma comprise theophylline associated with a compound of the substituted cinnamamide type of the general formula ##STR1## wherein R is hydrogen, a hologen or an acetyl radical; R.sub.1 is hydrogen or the methyl radical; R.sub.2 is ##STR2## wherein R.sub.3 is hydrogen or the methyl radical; or R.sub.1 and R.sub.2 together with the adjacent nitrogen tom form the 2,2-dimethyl-3-oxazolidinyl group.
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: April 23, 1985
    Assignee: Lipha, Lyonnaise Industrielle Pharmaceutique
    Inventors: Michel Bayssat, Maryse Belleville, Marcel Grand