DC

Donald G. Campbell

EA Ethyl Petroleum Additives: 3 patents #17 of 68Top 25%
FT Fina Technology: 3 patents #114 of 308Top 40%
📍 North Bay, CA: #1 of 51 inventorsTop 2%
Overall (All Time): #583,740 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7368411 Supported metallocene catalysts and their use in producing stereospecific polymers Margarito Lopez, Edwar S. Shamshoum 2008-05-06
7211536 Supported metallocene catalysts and their use in producing stereospecific polymers Margarito Lopez, Edwar S. Shamshoum 2007-05-01
6777367 Method for the preparation of metallocene catalysts William Gauthier, Margarito Lopez 2004-08-17
5942470 Lubricant compositions Stephen Norman, Gregory S. Conary 1999-08-24
5599030 Wear rods for skis of snowmobiles and similar vehicles Norman Campbell 1997-02-04
5358295 Tong/disposable bag combination 1994-10-25
5225093 Gear oil additive compositions and gear oils containing the same Stephen Norman, Gregory S. Conary 1993-07-06
5176840 Gear oil additive composition and gear oil containing the same Stephen Norman, Gergory S. Conary 1993-01-05
5145195 Steering skis for snowmobiles and similar vehicles Norman Campbell 1992-09-08