Stephen Boyle — 2 Patents at Duracraft

Stephen Boyle has been granted 2 US patents while listed as an inventor at Duracraft. The first was granted in 1995 and the most recent in October 1997. Stephen Boyle ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Stephen Boyle in Ottawa, ON, CA.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
D384733	Portable space heater	Rodney Jane, Zhiwei Xu, Jui-Shang Wang, Walter Birdsell, Richard M. O'Grady +1 more	1997-10-07
5475745	Abandoned call control and indication	—	1995-12-12	$7,298,000

Stephen Boyle — 2 Patents

Issued Patents All Time

Patent Widget