Average Co-Inventor Count = 5.00
ph-index = 2
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. 3M Innovative Properties Company (4 from 14,087 patents)
4 patents:
1. 8648291 - Projection system having a virtual mask and a projection area with a shape defined by surrounding graphics
2. 8461506 - Projection system having a virtual mask
3. 8193480 - Projection system having a virtual mask
4. 7923675 - Projection system having avirtual mask