Average Co-Inventor Count = 2.40
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. Century Mfg. Co. (2 from 33 patents)
2. Century Manufacturing Company (2 from 14 patents)
4 patents:
1. 6046664 - Welding power supply transformer apparatus and method
2. D416030 - Portable welder
3. 5639392 - Locking crank mechanism
4. 4396881 - Means indicating a condition of charge in a battery charger