Inventor
Dennis Dykstra
Inventor
Pinole, CA, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry45%
C10GCracking hydrocarbon oils39%
A61BDiagnosis6%
A61MDevices for introducing media into, or onto, the body3%
A61NElectrotherapy3%
C01BNon-metallic elements3%
PatentTitleYear
9,776,181'Hydroconversion multi-metallic catalyst and method for making thereof'20179,168,519'Hydroconversion multi-metallic catalyst and method for making thereof'20158,703,641'Hydroconversion multi-metallic catalyst and method for making thereof'20148,658,558'Hydroconversion multi-metallic catalyst and method for making thereof'20148,586,500'Hydroconversion multi-metallic catalyst and method for making thereof'20138,575,062'Hydroconversion multi-metallic catalyst and method for making thereof'20138,575,061'Hydroconversion multi-metallic catalyst and method for making thereof'20138,383,543'Hydroconversion multi-metallic catalyst and method for making thereof'20138,084,384'Magnesium aluminosilicate clays—synthesis and catalysis'20118,080,492'Hydroconversion multi-metallic catalyst and method for making thereof'20118,058,203'Hydroconversion multi-metallic catalyst and method for making thereof'20117,964,524'Hydroconversion multi-metallic catalyst and method for making thereof'20117,964,526'Hydroconversion multi-metallic catalyst and method for making thereof'20117,964,525'Hydroconversion multi-metallic catalyst and method for making thereof'20117,931,799'Hydroconversion multi-metallic catalyst and method for making thereof'20114,932,936'Method and device for pharmacological control of spasticity'19904,759,377'Apparatus and method for mechanical stimulation of nerves'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1990Based in Eagan, MN, US· patent location history
2011–2017Patents assigned to CHEVRON USA INC (15)· patent assignee history
2011–2015Patents assigned to DYKSTRA DENNIS (10)· patent assignee history
2011–2015Patents assigned to KUPERMAN ALEXANDER E (10)· patent assignee history
2011–2015Patents assigned to MAESEN THEODORUS (10)· patent assignee history
2011–2014Patents assigned to UCKUNG SOY (3)· patent assignee history
2011–2017Based in Pinole, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CHEVRON USA INC | 15 | 2011–2017 |
| DYKSTRA DENNISself | 10 | 2011–2015 |
| KUPERMAN ALEXANDER E | 10 | 2011–2015 |
| MAESEN THEODORUS | 10 | 2011–2015 |
| UCKUNG SOY | 3 | 2011–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pinole, California, US | 15 | 2011–2017 |
| Eagan, Minnesota, US | 2 | 1988–1990 |