Average Co-Inventor Count = 1.71
ph-index = 6
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. Facit Aktiebolag (4 from 29 patents)
2. Aktiebolaget Electrolux (1 from 668 patents)
3. Aktiebolaget Original-odhner (1 from 1 patent)
6 patents:
1. 4095237 - Ink jet printing head
2. 4015271 - Printing head for use with an ink jet printer
3. 4005440 - Printing head for ink jet printer
4. 3988745 - Printing ink supply device for ink jet printer
5. 3967286 - Ink supply arrangement for ink jet printers
6. 3953862 - Printing head device for an ink jet printer