Average Co-Inventor Count = 1.00
ph-index = 4
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. The Bridgeport Metal Goods Manufacturing Company (4 from 25 patents)
2. The Bridgeport Metal Goods Mfg. Co. (1 from 10 patents)
5 patents:
1. 4579134 - Lipstick container
2. 4403274 - Portable lamp
3. D268055 - Portable lamp
4. 4074122 - Fluorescent lantern
5. 3944805 - Wireless electric swivel head hand lantern