Average Co-Inventor Count = 1.71
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. Japan Aircraft Mfg. Co., Ltd. (2 from 12 patents)
2 patents:
1. 4215862 - Water-surface towed target
2. 4189148 - Towed target ship with submerged hull