Inventor
BUTLER ROBERT D
US10 patents
⚠️ This page may combine multiple inventors who share the name “BUTLER ROBERT D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
APPLE INC
7 patentsUS11737012B2Aug 22, 2023
Maintaining access to services via SIM card
APPLE INC2 citations70
US11228580B2Jan 18, 2022
Two-factor device authentication
APPLE INC1 citations60
US12177768B2Dec 24, 2024
Maintaining access to services via SIM card
APPLE INC0 citations59
US12549643B2Feb 10, 2026
Push notification distribution system
APPLE INC0 citations57
US11917030B2Feb 27, 2024
Push notification distribution system
APPLE INC0 citations57
US11012322B2May 18, 2021
Notification of service availability on a device
APPLE INC0 citations50
US10321298B2Jun 11, 2019
Selection of preferred mechanisms for telephone number validation
APPLE INC0 citations50