Average Co-Inventor Count = 3.87
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 Boeing Company (3 from 22,216 patents)
2. Mcdonnell Douglas Helicopter Company (1 from 61 patents)
4 patents:
1. 6666409 - Crewed on-orbit, returnable, and reusable space vehicle
2. 6568639 - Autonomous orbit transfer vehicle
3. 6557803 - Crewed on-orbit, returnable, and reusable space vehicle
4. 5381985 - Wingtip mounted, counter-rotating proprotor for tiltwing aircraft