Average Co-Inventor Count = 1.43
ph-index = 5
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. 546401 Ontario Limited (3 from 3 patents)
2. Ontario Limited (1 from 32 patents)
3. Reuber; Douglas Alvin (1 from 1 patent)
5 patents:
1. 5671483 - Removable subsidiary helmet face shield lens
2. D380873 - Helmet face shield
3. D370310 - Helmet face shield
4. 5500953 - Double lens electric shield
5. 5351339 - Double lens electric shield