Average Co-Inventor Count = 3.00
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. Komatsu Zenoah Co. (5 from 75 patents)
2. Japan Tobacco Inc. (1 from 1,039 patents)
6 patents:
1. 8511459 - Cigarette bundle feeder
2. D303973 - Portable internal combustion engine and tools
3. D303671 - Combined portable internal combustion engine and tool
4. 4821691 - Portable engine unit
5. 4815430 - Portable engine unit
6. 4727828 - Portable engine unit