Inventor · disambiguated record
Eric Mark Chelgren
Also filed as: CHELGREN ERIC MARK
4 granted patents·1 pending application·89 citations·filing 1998–2013
77Inventor score
Top patents by PatentIndex Score
5 records- 0178US6149169ACaster fork with dampenerFROG LEGS INC·Filed 1998·Granted Nov 21, 2000·61 cites·9 claims
- 0265US7032917B1Rear suspension for wheelchairCHELGREN ERIC MARK·Filed 2003·Granted Apr 25, 2006·18 cites·5 claims
- 0351US8011680B2Wheelchair suspension systemCHELGREN ERIC MARK·Filed 2009·Granted Sep 6, 2011·2 cites·3 claims
- 0447USD495629SShock absorbing rear suspension for wheelchairFROG LEGS INC·Filed 2003·Granted Sep 7, 2004·8 cites·1 claims
- 0545US2014100490A1Inhalant delivery system for massage apparatusCHELGREN ERIC MARK·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →