Average Co-Inventor Count = 2.46
ph-index = 7
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. Nsm Aktiengesellschaft (11 from 43 patents)
11 patents:
1. 5898365 - Device for checking the closed state of a door mounted on an object,
2. 5735379 - Money-operated entertainment device
3. 5691964 - Music playing system with decentralized units
4. 5562549 - Automatic bowling alley
5. 5557086 - Game machine system with money-processing station
6. 5539712 - Lifting and lowering device for a record playback unit in a record
7. 5537371 - Disk play-back device with removable disk magazines
8. 5513846 - Coin-operated entertainment machine
9. 5413357 - Program controlled entertainment and game apparatus
10. 5370306 - Coin-operated entertainment machine
11. 5341350 - Coin operated jukebox device using data communication network