Inventor

SITTINGER SHELIA M

US2 patents

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

ARNOLD TODD W

1 patent

US8639938B2Jan 28, 2014

Personal identification number security enhancement

ARNOLD TODD W2 citations57

IBM

1 patent

US9235702B2Jan 12, 2016

Personal identification number security enhancement

IBM1 citations47