Stephen J. Michalak

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Lancaster, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Children's ride-on vehicle charging assemblies with back feed prote...
- Patent number 7,568,538
- Issue date Aug 4, 2009
- Mattel, Inc.
- Steven Robert Drosendahl
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Children's ride-on vehicle charging assemblies with back feed prote...
- Publication number 20060170187
- Publication date Aug 3, 2006
- Steven Robert Drosendahl
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS