Inventor

ERIK J. HAMMAGREN

Inventor
US

Overview

2→
Patents
2023–2024
Patent span
Mechanical engineering
Primary field (CPC F)

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
AssigneePatentsSpan
COLUMBIA POWER TECH INC22023–2024
Locations
LocationPatentsSpan
US22023–2024