Average Co-Inventor Count = 1.41
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. Electronic-werke Deutschland Gmbh (4 from 7 patents)
4 patents:
1. 5400414 - Loudspeaker
2. 5315663 - Passive loudspeaker enclosure for a television receiver
3. 5166802 - Television receiver with loudspeaker enclosure
4. 4866780 - Loudspeaker unit