Average Co-Inventor Count = 2.22
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Orbital Engine Company (australia) Pty Limited (4 from 77 patents)
2. Orbital Engine Company Pty. Ltd. (1 from 7 patents)
5 patents:
1. 5927238 - Valve timing for four stroke internal combustion engines
2. 5829407 - Internal combustion engines
3. 5655365 - Method of operating an internal combustion engine
4. 5392828 - Refillable liquid reservoir
5. 5245974 - Treatment of fuel vapor emissions