Average Co-Inventor Count = 1.33
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. Ace Bed Co., Ltd. (3 from 6 patents)
2. Other (1 from 832,891 patents)
3. Ahn, Yoo Soo (0 patent)
4 patents:
1. 8109490 - Spring structure having contact-preventing and rigidity-reinforcing function for bed mattress
2. 7841032 - Bed mattress using permeable reinforcing member and foaming material, and method of manufacturing the same
3. 7721367 - Bed mattress using permeable reinforcing member and foaming material, and method of manufacturing the same
4. 7677541 - Spring structure for bed mattress