Patents by Inventor David R. Tristram

David R. Tristram 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).

  • Spiraea plant named 'Walplum'
    Publication number: 20170265344
    Abstract: A new cultivar of Spiraea named ‘Walplum’ that is characterized by compact upright habit, deep red-purple new leaf tip growth which becomes olive green as growth continues. The buds of ‘Walplum’ are purple-red in color and develop into clusters of bright cerise colored flowers in late spring and early summer. ‘Walplum’ is hardy to USDA Zone 3.
    Type: Application
    Filed: February 22, 2017
    Publication date: September 14, 2017
    Applicant: Walberton Plants Ltd.
    Inventor: David R. Tristram
  • Sedum plant named 'Pizzazz'
    Publication number: 20140041089
    Abstract: A new and distinct variety of Sedum named ‘Pizzazz’ that is characterized by clump forming habit, thick mid-green colored leaves, and flowers with long petals which are mid-pink in color in summer, becoming bright cerise at peak of flowering in late summer and early fall, and aging to deep ruby before senescence.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 6, 2014
    Inventor: David R. Tristram
  • Spiraea plant named `Walbuma`
    Patent number: PP9363
    Abstract: A new and distinct cultivar of Spiraea japonica named Walbuma, characterized by its compact and spreading habit; small leaves; intense red young shoot and leaf color; early spring growth and early flowering; mature leaves turning gold in sunlight; phenotypic stability and absence of any shoots or leaves reverting to green; and bright pink flower color.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: November 7, 1995
    Inventor: David R. Tristram
  • plant named ‘Pizzazz’
    Patent number: PP25944
    Abstract: A new and distinct variety of Sedum named ‘Pizzazz’ that is characterized by clump forming habit, thick mid-green colored leaves, and flowers with long petals which are mid-pink in color in summer, becoming bright cerise at peak of flowering in late summer and early fall, and aging to deep ruby before senescence.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: September 22, 2015
    Inventor: David R. Tristram
  • plant named ‘Walplum’
    Patent number: PP29405
    Abstract: A new cultivar of Spiraea named ‘Walplum’ that is characterized by compact upright habit, deep red-purple new leaf tip growth which becomes olive green as growth continues. The buds of ‘Walplum’ are red-purple in color and develop into clusters of bright cerise colored flowers in late spring and early summer. ‘Walplum’ is hardy to USDA Zone 3.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 19, 2018
    Assignee: Walberton Plants LTD
    Inventor: David R. Tristram
  • plant named ‘Walsilfou’
    Patent number: PP31220
    Abstract: A new cultivar of Gaura named ‘Walsilfou’ that is characterized by dense compact habit throughout the season, variegated cream-green foliage and single sterile flowers which open light pink in color becoming pure white in color when fully open.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 10, 2019
    Assignee: Walberton Plants Ltd.
    Inventor: David R. Tristram