Average Co-Inventor Count = 3.53
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. Penn-plax Plastics, Inc. (4 from 27 patents)
2. Other (1 from 832,718 patents)
3. Marlboro Marketing, Inc. (1 from 27 patents)
6 patents:
1. 4540093 - Display hook apparatus
2. 4531311 - Data information display device
3. D275084 - Aquarium thermometer
4. D258272 - Aquarium thermometer
5. D256563 - Magnetic aquarium thermometer
6. D255354 - Aquarium pump housing