Inventor
ERIK J. HAMMAGREN
Inventor
US
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F03Bprimary
F03BMachines or engines for liquids33%
F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g33%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution33%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2024Patents assigned to COLUMBIA POWER TECH INC (2)· patent assignee history
2023–2024Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COLUMBIA POWER TECH INC | 2 | 2023–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 2 | 2023–2024 |