Average Co-Inventor Count = 2.27
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. The United States Bedding Company (5 from 12 patents)
2. Uni-Systems, Inc. (1 from 9 patents)
6 patents:
1. 5671567 - Support facility
2. 4145779 - Mattress constructions
3. 4140008 - System for testing firmness
4. 4096595 - Mattresses and method for producing mattresses
5. 4051644 - Apparatus for producing mattresses
6. 4004457 - Compression tester