Inventor
HOLMGREN DAVID E
CA10 patents
⚠️ This page may combine multiple inventors who share the name “HOLMGREN DAVID E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMART TECHNOLOGIES ULC
5 patentsUS7532206B2May 12, 2009
System and method for differentiating between pointers used to contact touch surface
SMART TECHNOLOGIES ULC176 citations98
US7492357B2Feb 17, 2009
Apparatus and method for detecting a pointer relative to a touch surface
SMART TECHNOLOGIES ULC75 citations97
US7686460B2Mar 30, 2010
Method and apparatus for inhibiting a subject's eyes from being exposed to projected light
SMART TECHNOLOGIES ULC11 citations82
US7984995B2Jul 26, 2011
Method and apparatus for inhibiting a subject's eyes from being exposed to projected light
SMART TECHNOLOGIES ULC8 citations77
US9658702B2May 23, 2017
System and method of object recognition for an interactive input system
SMART TECHNOLOGIES ULC1 citations47
HILL DOUGLAS B
2 patentsUS8089462B2Jan 3, 2012
Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region
HILL DOUGLAS B12 citations81
US8576172B2Nov 5, 2013
Pointer tracking across multiple overlapping coordinate input sub-regions defining a generally contiguous input region
HILL DOUGLAS B4 citations71