Assignee
KESSELMAN DAVID A
US·11 granted patents·471 citations·filing 1976–1992
Top patents by PatentIndex Score
11 records- 0196US4037515ATamper resistant fastenerKESSELMAN DAVID A·Filed 1976·Granted Jul 26, 1977·89 cites·11 claims
- 0295US5228250ATamper proof anchor bolt assemblyKESSELMAN DAVID A·Filed 1992·Granted Jul 20, 1993·109 cites·17 claims
- 0393US4215600ATorque limiter for use with off-the-shelf fastening elementsKESSELMAN DAVID A·Filed 1978·Granted Aug 5, 1980·70 cites·2 claims
- 0485US4426108ATamper indicatorKESSELMAN DAVID A·Filed 1982·Granted Jan 17, 1984·51 cites·9 claims
- 0583US4225165ATamper-resistant fastener for utility metersKESSELMAN DAVID A·Filed 1979·Granted Sep 30, 1980·38 cites·15 claims
- 0678US4815304AMagnetic lockKESSELMAN DAVID A·Filed 1987·Granted Mar 28, 1989·34 cites·17 claims
- 0763US4372593ATamper indicatorKESSELMAN DAVID A·Filed 1981·Granted Feb 8, 1983·24 cites·24 claims
- 0862US4883295ATamper deterrent assemblyKESSELMAN DAVID A·Filed 1987·Granted Nov 28, 1989·24 cites·22 claims
- 0950US4552394ATamper indicatorKESSELMAN DAVID A·Filed 1983·Granted Nov 12, 1985·11 cites·18 claims
- 1044US4699408ATamper deterrent assemblyKESSELMAN DAVID A·Filed 1985·Granted Oct 13, 1987·12 cites·35 claims
- 1144US4426896ATamper-proof fastener removal toolKESSELMAN DAVID A·Filed 1981·Granted Jan 24, 1984·9 cites·5 claims
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