Average Co-Inventor Count = 1.93
ph-index = 7
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. Gm Global Technolgoy Operations, Inc. (3 from 31,086 patents)
2. Roberts Corporation (2 from 15 patents)
3. Draper Technologies, Inc. (2 from 3 patents)
4. Other (1 from 832,966 patents)
5. Roberts-Sinto Corporation (1 from 6 patents)
9 patents:
1. 4987834 - Accumulating conveyor with self-propelled pallets
2. 4971515 - Apparatus for moving individual sheets from a stack of sheets
3. 4804173 - Method and apparatus for moving individual sheets from a stack of sheets
4. 4690303 - Coupon packet dispensing system
5. 4566608 - System for converting stack access newspaper vending machines and the
6. 4558803 - Mechanism for converting stack access newspaper vending machines and the
7. 4206800 - Rotary acoustic sand-core shakeout
8. 4137962 - Apparatus for marking a mold surface
9. 3977461 - Continuous mechanical iron pouring line