Assignee
DUFF ROBERT O
US·6 granted patents·26 citations·filing 2008–2022
Top patents by PatentIndex Score
6 records- 0185US7976080B1Doorstop with releasably securable handleDUFF ROBERT O·Filed 2008·Granted Jul 12, 2011·20 cites·8 claims
- 0283US12252912B2Doorstop with replaceable partsDUFF ROBERT O·Filed 2022·Granted Mar 18, 2025·1 cites·20 claims
- 0381US12252927B2Mounting bracketDUFF ROBERT O·Filed 2022·Granted Mar 18, 2025·1 cites·15 claims
- 0467US12084900B2Doorstop with a ropeDUFF ROBERT O·Filed 2022·Granted Sep 10, 2024·0 cites·18 claims
- 0558US8960739B2Multi-functional doorstop toolDUFF ROBERT O·Filed 2011·Granted Feb 24, 2015·4 cites·14 claims
- 0647US9284765B2Combination doorbumper/doorstopperDUFF ROBERT O·Filed 2014·Granted Mar 15, 2016·0 cites·18 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →