Keatings (or Keating’s?) Powder [brand name of an insecticide used nearly worldwide until DDT was banned in the 1970s: is trademark still active? (Is Keating’s Powder still made and used? Author queried. Author also queried about spelling: Keatings or Keating’s?)]

Greeners (plural of a brand of rifle, pistol, or shotgun—a Trademark? An active one? Author queried.)

Lancia (make of an automobile ca. 1916—a Trademark? An active one? Author queried.)

Ouija (as in the Ouija board)

Sunbeam [name of a make of automobile ca. 1916: is trademark still active? Author queried.]