Assignee
GUERARD DAVID ALEXANDER
US·3 granted patents·8 citations·filing 2021–2023
Top patents by PatentIndex Score
3 records- 0187US11268299B2Systems and methods for preventing the opening of a door by unauthorized personnelGUERARD DAVID ALEXANDER·Filed 2021·Granted Mar 8, 2022·6 cites·20 claims
- 0283US11725419B2Systems and methods for preventing the opening of a door by unauthorized personnelGUERARD DAVID ALEXANDER·Filed 2022·Granted Aug 15, 2023·2 cites·17 claims
- 0366US12480332B2Systems and methods for preventing the opening of a door by unauthorized personnelGUERARD DAVID ALEXANDER·Filed 2023·Granted Nov 25, 2025·0 cites·20 claims
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