Patents by Inventor Walter Preil

Walter Preil 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).

  • Rhododendron plant named 'Microhirs3'
    Publication number: 20170049020
    Abstract: A new and distinct Rhododendron hybrid plant that exhibits a compact habit and numerous flowers.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: Walter Preil, Ralf Luttmann
  • Rhododendron rootstock named 'Rhodunter 150'
    Publication number: 20140123354
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock that exhibits a high lime tolerance and vigorous growth.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Inkarho GmbH
    Inventor: Walter Preil
  • Rhododendron Rootstock named "Rhodunter 149"
    Publication number: 20080235834
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock that exhibits a high lime tolerance and vigorous growth.
    Type: Application
    Filed: February 15, 2008
    Publication date: September 25, 2008
    Applicant: Inkarho GmbH
    Inventor: Walter Preil
  • Rhododendron rootstock named 'Rhodunter 37'
    Publication number: 20040073981
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock that exhibits hardy and vigorous growth.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Applicant: Inkarho GmbH
    Inventors: Walter Preil, Rainer Ebbinghaus
  • Rhododendron rootstock named 'Rhodunter 48'
    Publication number: 20040073980
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock or flowering shrub that exhibits hardy and vigorous growth.
    Type: Application
    Filed: October 11, 2002
    Publication date: April 15, 2004
    Applicant: Inkarho GmbH
    Inventors: Walter Preil, Rainer Ebbinghaus
  • Rhododendron rootstock named ‘Rhodunter 37’
    Patent number: PP15940
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock that exhibits hardy and vigorous growth.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: September 6, 2005
    Assignee: Inkarho GmbH
    Inventors: Walter Preil, Rainer Ebbinghaus
  • Rhododendron rootstock named ‘Rhodunter 48’
    Patent number: PP15967
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock or flowering shrub that exhibits hardy and vigorous growth.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: September 20, 2005
    Assignee: Inkarho GmbH
    Inventors: Walter Preil, Rainer Ebbinghaus
  • rootstock named ‘Rhodunter 149’
    Patent number: PP20749
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock that exhibits a high lime tolerance and vigorous growth.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: February 16, 2010
    Assignee: Inkarho GmbH
    Inventor: Walter Preil
  • Rhododendron Rhodunter 10
    Patent number: PP9265
    Abstract: The new plant is a new and distinct cultivar of a rhododendron used as a rootstock, and characterized by a plant height (of the original plant) of 1.0 m, with a plant width of 1.2 m in 13 years; a habit of broad bush, very compact; an annual terminal growth of mature plants being about 10-15 cm and for young plants being 20-25 cm; a flowering period in the first week of May to the third week of May; a flower color being white (R.H.S. Colour Chart 155 D) with green tinge and faint yellow-brown markings (nearly 164 B-173 A according to R.H.S. Colour Chart); 10 stamens of very striking brown color with a green stigma and stamens much longer than style; leaf shape being small and elliptical, 6-9 cm long and 1.5-3.5 cm broad, with a dark green upper surface and light green lower surface; hardy to a temperature down to -26.degree. C., or -10.degree. F.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: August 29, 1995
    Assignee: Inkarho Pflanzenvertrieb GmbH+Co. KG
    Inventors: Walter Preil, Rainer Ebbinghaus
  • rootstock named ‘Rhodunter 150’
    Patent number: PP25235
    Abstract: A new and distinct Rhododendron hybrid plant used as a rootstock that exhibits a high lime tolerance and vigorous growth.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: January 20, 2015
    Assignee: Inkarho GmbH
    Inventor: Walter Preil
  • plant named ‘Microhirs3’
    Patent number: PP28473
    Abstract: A new and distinct Rhododendron hybrid plant that exhibits a compact habit and numerous flowers.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 3, 2017
    Assignee: Inkarho GmbH
    Inventors: Walter Preil, Ralf Lüttmann
  • plant named ‘Microhirs9’
    Patent number: PP32968
    Abstract: A new cultivar of hybrid Rhododendron plant named ‘Microhirs9’ that is characterized by its inflorescences that are conical in shape, its flowers that are pink in color with the upper surface of the center of the corolla lobes white in color, its compact plant habit, and its tolerance to alkaline soils.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: April 13, 2021
    Assignee: INKARHO GMBH
    Inventors: Ralf Lüttmann, Walter Preil