@patent{fourney_patent2021b,
  number = {US 20210224324 A1},
  type = {Patent Application},
  title = {Graph-based activity discovery in heterogeneous personal corpora},
  author = {Fourney, Adam and Sim, Robert Alexander and Williams, Shane Frandon and Bennett, Paul Nathan and Safavi, Tara Lynn},
  date = {2021-07-22},
  location = {United States},
  nationality = {United States},
  url = {https://patents.google.com/patent/US20210224324A1/en}
}