LexDanaLexDanabeta
Inventor

Robert J. Penberthy

Inventor
Gladstone, OR, US

Overview

4→
Patents
1977–1999
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

B23Dprimary
B23DPlaning29%
B27BSaws for wood or similar material29%
A01GHorticulture14%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
5,974,933'Depth gauge for a cutter'19995,649,367'Chain saw guide bar with identifying indicia'19975,153,996'Rivet connector for hedge cutting blade'19924,019,407'Saw chain grinder fixture'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to OMARK INDUSTRIES INC (1)· patent assignee history
1977–1999Based in Gladstone, OR, US· patent location history
1992–1999Patents assigned to BLOUNT INC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BLOUNT INC31992–1999
OMARK INDUSTRIES INC11977
Locations
LocationPatentsSpan
Gladstone, OR, US41977–1999