Canada - Patent No: 5303 on 26 Aug 2016
Application No: 11-7435 on 14 Dec 2011
Breeder: Szczepan Marczynski, Pruszków, Poland
'Sweet Summer Love' originated from a cross pollination of two unnamed seedlings conducted by the breeder, Szczepan Marczynski, in Pruszków, Poland in July, 2003.
United States - Patent No: PP 24,044 on 26 Nov 2013
VIEW USPTO PATENTApplication No: 13/385,293 on 10 Feb 2012
USPP 24044: The new Clematis plant originated from a cross-pollination conducted by the Inventor in July, 2003 in Pruszków, Poland of an unidentified selection of Clematis hybrida, not patented, as the female, or seed parent with an unidentified selection of Clematis hybrida, not patented, as the male, or pollen, parent.