patent · US8720389B2
Method and apparatus for controlling an electric motor and an internal combustion engine
13 May 2014
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Provenance
- Collection
- Patents citing this work
- Original assignee
- Petrolfree Inc
- Patent office record
- patents.google.com →
- Source
- Google Patents citing-documents table
- Inventors
- Zachary A. Henry, SR.; Ricky L. Gammons; Petrolfree Inc
- Published
- 2014-05-13