Average Co-Inventor Count = 2.53
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. Ingersoll-rand Company (2 from 1,201 patents)
2. American Standard Inc. (2 from 1,121 patents)
4 patents:
1. 5704171 - Door frame installing fixture
2. 5619823 - Pre-finished metal door frame
3. 4547930 - Hinge preparation assembly for a steel door
4. D251741 - Glass skylight for embossed doors