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Inventor

Richard L. Marcengill

Inventor
Walhalla, SC, US

Overview

4→
Patents
1998–1999
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.

B23Bprimary
B23BTurning22%
B25DPercussive tools22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
Y10TTechnical subjects covered by former us classification22%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding11%
PatentTitleYear
5,992,538'Impact tool driver'19995,921,563'Quick release integrated collet and chuck device'19995,908,076'Impact tool driver'19995,704,616'Lever actuated keyless chuck'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–1999Patents assigned to POWER TOOL HOLDERS INC (4)· patent assignee history
1998–1999Based in Walhalla, SC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
POWER TOOL HOLDERS INC41998–1999
Locations
LocationPatentsSpan
Walhalla, SC, US41998–1999