Average Co-Inventor Count = 1.00
ph-index = 3
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. Firma Anton Schwarzkopf Stahl- Und Fahrzeugbau (2 from 2 patents)
2. Intamin Inc. (1 from 3 patents)
3. Firma Anton Schwarzkopf Stahl- U. Fahrzeugbau (1 from 1 patent)
4. Firma Anton Schwarzkopf Fahrzeug- Und Stahlbau (1 from 1 patent)
5. Firma Schwarzkopf Gmbh (1 from 1 patent)
5 patents:
1. 4682547 - Amusement ride with vehicles supported by universally hinged wheel groups
2. 4361094 - Drive member for rail-type amusement-ride car
3. 4339121 - Orbital amusement-park ride
4. 4270459 - Chain-type ascent system for roller coaster
5. 4165695 - Amusement ride with vertical track loop