Mark L. Groendal

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Kentwood, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Bicycle frame
- Patent number 6,893,036
- Issue date May 17, 2005
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Flexible and folding bicycle
- Patent number 5,330,219
- Issue date Jul 19, 1994
- Greendale Bicycle Company
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Bicycle frame
- Patent number 5,080,384
- Issue date Jan 14, 1992
- Greendale Bicycle Company
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Bicycle frame
- Patent number 4,792,150
- Issue date Dec 20, 1988
- Greendale Bicycle Company
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Flexible bicycle
- Patent number 4,669,747
- Issue date Jun 2, 1987
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
COLLAPSIBLE BICYCLE
- Publication number 20220281549
- Publication date Sep 8, 2022
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
BICYCLE FRAME
- Publication number 20120098233
- Publication date Apr 26, 2012
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Bicycle frame
- Publication number 20050121877
- Publication date Jun 9, 2005
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Application
Bicycle frame
- Publication number 20030209875
- Publication date Nov 13, 2003
- Mark L. Groendal
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS