Patents by Inventor Juan Contreras

Juan Contreras 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).

  • Pruning Pot Device
    Publication number: 20240164260
    Abstract: The present invention relates to a pruning pot device. The device is comprised of a body, a plurality of hinges, and a plurality of latches. The body may be of various sizes to accommodate different plants or trees and may include indicia on any surface. The device further comprises a plurality of openings on the bottom surface of the body, allowing the roots of the plants to grow without obstruction. In addition, the device is comprised of a root blocker to allow the user to block the openings if they wish. The latches allow the device to be secured in a closed position when not in use and the hinges allow the device to be opened and closed. The pruning pot device of the present invention is useful in pruning and cultivating plants and trees with minimal risk of killing the plants.
    Type: Application
    Filed: June 26, 2023
    Publication date: May 23, 2024
    Inventor: Juan Contreras
  • 1-(1-1,2,4-triazol-1-yl)butan-2-ol derivative for pharmaceutical use, and the use of a 1-(1-1,2,4-triazol-1-yl)butan-2-ol derivative with substantially undefined crystal shape for preparing said 1-(1-1,2,4-triazol-1-yl)butan-2-ol derivative
    Patent number: 8288394
    Abstract: The present invention relates to voriconazole, processes of preparing voriconazole, and pharmaceutical compositions and therapeutic uses thereof. In particular, the present invention also relates to voriconazole prepared from voriconazole having a substantially undefined shape and/or crystal habit. The invention further relates to voriconazole having a modified sphericity factor and/or specific surface area and/or Sauter diameter compared to voriconazole known from the prior art.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: October 16, 2012
    Assignee: Medichem, S.A.
    Inventors: Ernesto Duran Lopez, Juan Contreras Lascorz
  • Process for preparing voriconazole, new polymorphic form of intermediate thereof, and uses thereof
    Patent number: 8143397
    Abstract: The present invention relates to an improved process for preparation of Voriconazole and Voriconazole (1R)-(?)-10-camphorsulfonate.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: March 27, 2012
    Assignee: Medichem S.A.
    Inventors: Monica Benito, Elies Molins, Juan Contreras
  • 1-(1H-1,2,4-Triazol-1-YL)Butan-2-OL Derivative For Pharmaceutical Use, and The Use Of a 1-(1H-1,2,4-Triazol-1-YL)Butan-2-OL Derivative With Substantially Undefined Crystal Shape For Preparing Said 1-(1H-1,2,4-Triazol-1-YL)Butan-2-OL Derivative
    Publication number: 20110159096
    Abstract: The present invention relates to voriconazole, processes of preparing voriconazole, and pharmaceutical compositions and therapeutic uses thereof. In particular, the present invention also relates to voriconazole prepared from voriconazole having a substantially undefined shape and/or crystal habit. The invention further relates to voriconazole having a modified sphericity factor and/or specific surface area and/or Sauter diameter compared to voriconazole known from the prior art.
    Type: Application
    Filed: July 23, 2010
    Publication date: June 30, 2011
    Applicant: Medichem, S.A.
    Inventors: Ernesto Duran Lopez, Juan Contreras Lascorz
  • PROCESS FOR THE PREPARATION OF VORICONAZOLE
    Publication number: 20100056784
    Abstract: The present invention relates to an improved process for the preparation of Voriconazole.
    Type: Application
    Filed: July 12, 2007
    Publication date: March 4, 2010
    Applicant: MEDICHEM, S.A.
    Inventors: Ernesto Duran Lopez, Marcal Carreras i Vilagran, Juan Contreras Lascorz
  • PROCESS FOR PREPARING VORICONAZOLE, NEW POLYMORPHIC FORM OF INTERMEDIATE THEREOF, AND USES THEREOF
    Publication number: 20090023922
    Abstract: The present invention relates to an improved process for preparation of Voriconazole and Voriconazole (1R)-(?)-10-camphorsulfonate.
    Type: Application
    Filed: January 29, 2007
    Publication date: January 22, 2009
    Applicant: Medichem, S.A.
    Inventors: Monica Benito, Elies Molins, Juan Contreras
  • Intermediate compounds for the preparation of mirtazapine and production methods thereof
    Patent number: 7265223
    Abstract: The present invention is directed to intermediate compounds of mirtazapine and methods for obtaining same. A method is described for obtaining (±)-3-phenyl-1-methylpiperazine, an important intermediate for obtaining mirtazapine, which is based on imposing a cyclization reaction, in the presence of a reducing agent, on new compounds of general formula (1) in which Z is a leaving group capable of undergoing a nucleophilic displacement. A method is also described for obtaining the new compounds of formula (1).
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: September 4, 2007
    Assignee: Medichem, S.A.
    Inventors: Jordi Bosch i Lladó, Pelayo Camps García, Juan Contreras Lascorz, Ma Carmen Onrubia Miguel
  • Intermediate compounds for the preparation of mirtazapine and the production methods thereof
    Publication number: 20040236107
    Abstract: Intermediate compounds for the preparation of mirtazapine and obtention methods thereof.
    Type: Application
    Filed: March 4, 2004
    Publication date: November 25, 2004
    Inventors: Jordi Bosch i Llado, Pelayo Camps Garcia, Juan Contreras Lascorz, Ma Carmen Onrubia Miguel
  • Hammer
    Patent number: D807721
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: January 16, 2018
    Inventor: Juan Contreras