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Inventor

Eugene E. Calkins

Inventor
Salem, OR, US

Overview

3→
Patents
1989–2019
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B27Bprimary
B27BSaws for wood or similar material67%
A22CProcessing meat, poultry, or fish33%
PatentTitleYear
10,264,801Shellfish gauge and cleaner20196,049,986'Chain saw guide bar equipped with chain tensioner'20004,876,796'Sprocket assembly for chain saws'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2000Patents assigned to BLOUNT INC (2)· patent assignee history
1989–2019Based in Salem, OR, US· patent location history
2000Based in Keizer, OR, US· patent location history
2019Patents assigned to CALKINS EUGENE E (1)· patent assignee history
2019Patents assigned to THIESSEN ANTHONY S (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BLOUNT INC21989–2000
CALKINS EUGENE Eself12019
THIESSEN ANTHONY S12019
Locations
LocationPatentsSpan
Salem, OR, US21989–2019
Keizer, OR, US12000