Average Co-Inventor Count = 2.73
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. Marathon Petroleum Company LP (3 from 158 patents)
2. Marathon Ashland Petroleum LLC (1 from 63 patents)
3. Marathon Ashland Petroluem LLC (1 from 1 patent)
5 patents:
1. 12345416 - Methods and systems for minimizing NOand CO emissions in natural draft heaters
2. 12031676 - Insulation securement system and associated methods
3. 7485801 - Heat trace or control cable support with insulating jackets
4. 7225840 - Drop tube assembly
5. 6932123 - Drop tube assembly