Middletown, Delaware
United States
9
2026-05-14
The entities that hold a legal rights for patent applications filed by inventor Butler Robert D.:
Robert D. Butler from Middletown, US has applied for patents for these inventions. The list has both pending applications and granted patents:
PUSH NOTIFICATION DISTRIBUTION SYSTEM
#2 | 2024-05-16PUSH NOTIFICATION DISTRIBUTION SYSTEM
#3 | 2023-11-23Maintaining access to services via SIM card
#4 | 2021-12-16Maintaining access to services via SIM card
#5 | 2021-12-16Push notification distribution system
#6 | 2020-01-02Notification of service availability on a device
#7 | 2019-12-26Two-factor device authentication
#8 | 2018-12-06Selection of preferred mechanisms for telephone number validation
#9 | 2014-03-06Mobile emergency attack and failsafe detection
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