Individual holder
GROENDAL MARK L
US·3 granted patents·1 pending application·37 citations·filing 1981–2022
Individually held — no corporate assignee on record.
Technology mixB62K4
Top patents by PatentIndex Score
4 records- 0162US4669747AFlexible bicycleGROENDAL MARK L·Filed 1981·Granted Jun 2, 1987·32 cites·14 claims
- 0258US9708026B2Bicycle frame with removable down tube clipsGROENDAL MARK L·Filed 2014·Granted Jul 18, 2017·3 cites·8 claims
- 0350US8991848B2Bicycle frameGROENDAL MARK L·Filed 2010·Granted Mar 31, 2015·2 cites·24 claims
- 0448US2022281549A1Collapsible bicycleGROENDAL MARK L·Filed 2022·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →