Patents by Inventor Paul L. F. Sun

Paul L. F. Sun 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).

  • Patent number: 6359199
    Abstract: An alfalfa product, hybrids and non-hybrids, and a method for synthesizing an alfalfa product having increased uniformity for preselected traits having improved uniformity of one or more selected traits, including flowering dates, flower frequency, maturity rate, growth rate, fall dormancy and winterhardiness. The alfalfa product may also include improved predictability of these traits. A scheduled harvest system may be established using two or more varieties of the alfalfa product having different and predictable mean flowering dates. The scheduled harvest system may be designed to allow for harvesting of alfalfa varieties at maximum relative feeding value. The method may be used to synthesize an alfalfa product having one or more predetermined traits. The method selects germplasm, including a cytoplasmic male sterile line, a genetic male sterile line, a maintainer line, a restorer line and a line having normal cytoplasm, having agronomically desirable traits.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: March 19, 2002
    Assignee: Dairyland Seed Co., Inc
    Inventor: Paul L. F. Sun
  • Patent number: 6051759
    Abstract: An alfalfa product, hybrids and non-hybrids, and a method for synthesizing an alfalfa product having increased uniformity for preselected traits having improved uniformity of one or more selected traits, including flowering dates, flower frequency, maturity rate, growth rate, fall dormancy and winterhardiness. The alfalfa product may also include improved predictability of these traits. A scheduled harvest system may be established using two or more varieties of the alfalfa product having different and predictable mean flowering dates. The scheduled harvest system may be designed to allow for harvesting of alfalfa varieties at maximum relative feeding value. The method may be used to synthesize an alfalfa product having one or more predetermined traits. The method selects germplasm, including a cytoplasmic male sterile line, a genetic male sterile line, a maintainer line, a restorer line and a line having normal cytoplasm, having agronomically desirable traits.
    Type: Grant
    Filed: September 6, 1997
    Date of Patent: April 18, 2000
    Assignee: Dairyland Seed Co., Inc.
    Inventor: Paul L. F. Sun
  • Patent number: 5724767
    Abstract: An alfalfa product, hybrids and non-hybrids, and a method for synthesizing an alfalfa product having increased uniformity for preselected traits having improved uniformity of one or more selected traits, including flowering dates, flower frequency, maturity rate, growth rate, fall dormancy and winterhardiness. The alfalfa product may also include improved predictability of these traits. A scheduled harvest system may be established using two or more varieties of the alfalfa product having different and predictable mean flowering dates. The scheduled harvest system may be designed to allow for harvesting of alfalfa varieties at maximum relative feeding value. The method may be used to synthesize an alfalfa product having one or more predetermined traits. The method selects germplasm, including a cytoplasmic male sterile line, a genetic male sterile line, a maintainer line, a restorer line and a line having normal cytoplasm, having agronomically desirable traits.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: March 10, 1998
    Assignee: Dairyland Seed Co., Inc.
    Inventor: Paul L. F. Sun
  • Patent number: 4045912
    Abstract: Using controlled pollination a cytoplasmic male sterile alfalfa plant is crossed with a maintainer line to give cytoplasmic male sterile hybrid alfalfa seed which is recovered. Male sterile hybrid alfalfa plants derived from the said seed are then crossed, using random pollination, with male fertile alfalfa plants to give alfalfa seeds of good productivity.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: September 6, 1977
    Assignee: Kent Feeds, Inc.
    Inventor: Paul L. F. Sun