Inventor · disambiguated record
Erik S. Hopperstad
Also filed as: HOPPERSTAD ERIK S
14 granted patents·1 pending application·385 citations·filing 2015–2024
94Inventor score
Top patents by PatentIndex Score
15 records- 0198US9498670B1Retractable wall mounted exercise rack systemPRX PERFORMANCE LLC·Filed 2016·Granted Nov 22, 2016·66 cites·20 claims
- 0297US11446535B1Folding exercise rack systemPRX PERFORMANCE LLC·Filed 2021·Granted Sep 20, 2022·28 cites·16 claims
- 0397US9993678B2Wall mounted exercise rack systemPRX PERFORMANCE LLC·Filed 2017·Granted Jun 12, 2018·42 cites·20 claims
- 0497US9844691B2Wall mounted exercise rack systemPRX PERFORMANCE LLC·Filed 2017·Granted Dec 19, 2017·43 cites·10 claims
- 0597US9649525B2Retractable wall mounted exercise rack systemPRX PERFORMANCE LLC·Filed 2016·Granted May 16, 2017·43 cites·20 claims
- 0697US9409048B1Retractable wall mounted exercise rack systemPRX PERFORMANCE INC·Filed 2016·Granted Aug 9, 2016·69 cites·20 claims
- 0797US9333387B2Retractable wall mounted exercise rack systemPRX PERFORMANCE INC·Filed 2015·Granted May 10, 2016·79 cites·19 claims
- 0888US10107317B1Barbell collar systemPRX PERFORMANCE LLC·Filed 2018·Granted Oct 23, 2018·6 cites·20 claims
- 0985US11766585B2Folding exercise rack systemPRX PERFORMANCE LLC·Filed 2022·Granted Sep 26, 2023·1 cites·20 claims
- 1080US10632334B1Wall mounted exercise rack systemPRX PERFORMANCE LLC·Filed 2018·Granted Apr 28, 2020·3 cites·22 claims
- 1177US10124201B2Wall mounted exercise rack systemPRX PERFORMANCE LLC·Filed 2018·Granted Nov 13, 2018·2 cites·24 claims
- 1276US2025010120A1Folding Exercise Rack SystemPRX PERFORMANCE LLC·Filed 2024·Application pending·0 cites
- 1373US12102864B2Folding exercise rack systemPRX PERFORMANCE LLC·Filed 2023·Granted Oct 1, 2024·0 cites·20 claims
- 1472US10039949B2Barbell collar systemPRX PERFORMANCE LLC·Filed 2016·Granted Aug 7, 2018·3 cites·5 claims
- 1550US12214251B2Retractable exercise rack systemPRX PERFORMANCE LLC·Filed 2022·Granted Feb 4, 2025·0 cites·20 claims
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