Inventor
DONALDSON ROBERT L
US8 patents
⚠️ This page may combine multiple inventors who share the name “DONALDSON ROBERT L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
7 patentsUS5386219AJan 31, 1995
Touch overlay for improved touch sensitivity
IBM436 citations98
US5007085AApr 9, 1991
Remotely sensed personal stylus
IBM360 citations98
US5349139ASep 20, 1994
Architecture for communication of remote devices to a digitizing display
IBM119 citations97
US4686332AAug 11, 1987
Combined finger touch and stylus detection system for use on the viewing surface of a visual display device
IBM902 citations97
US5528266AJun 18, 1996
Flat touch screen workpad for a data processing system
IBM98 citations95
US5313051AMay 17, 1994
Paperless parcel tracking system
IBM242 citations95
US5438275AAug 1, 1995
Digitizing stylus having capacitive pressure and contact sensing capabilities
IBM25 citations89