Inventor
Darius John Yakimchuk
Inventor
St. Albert, CA
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling40%
F04BPositive-displacement machines for liquids40%
F16FSprings20%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2019–2020Patents assigned to WEATHERFORD TECH HOLDINGS LLC (2)· patent assignee history
2019–2020Based in St. Albert, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WEATHERFORD TECH HOLDINGS LLC | 2 | 2019–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Albert, CA | 2 | 2019–2020 |