Average Co-Inventor Count = 2.25
ph-index = 2
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. Arco Industries Corporation (3 from 34 patents)
3 patents:
1. 4341034 - Toy washing machine
2. 4340373 - Spelling machine
3. 4338741 - Toy dryer