Inventor

TJONPIANGI DAVID C

US2 patents

⚠️ This page may combine multiple inventors who share the name “TJONPIANGI DAVID C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IBM

1 patent

US7378991B2May 27, 2008

Condensed keyboard for electronic devices

IBM26 citations86

DIETZ TIMOTHY A

1 patent

US8164570B2Apr 24, 2012

Condensed keyboard for electronic devices

DIETZ TIMOTHY A6 citations76