LexDanaLexDanabeta
Inventor

Robert L. Strohl

Inventor
Lancaster, OH, US

Overview

4→
Patents
1985–1993
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.

B23Kprimary
B23KSoldering or unsoldering50%
E21BEarth or rock drilling33%
D05BSewing17%
PatentTitleYear
5,189,973'Looper which rotates in a horizontal plane for a double lock-stitch sewing machine'19934,864,093'Exothermic cutting electrode'19894,573,665'Self-contained exothermic cutting system'19864,544,139'Coated exothermic cutting electrode'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1989Patents assigned to ARCAIR CO (3)· patent assignee history
1985–1986Based in Lancaster, OH, US· patent location history
1989Based in Amanda, OH, US· patent location history
1993Patents assigned to DUERKOPP ADLER AG (1)· patent assignee history
1993Based in Bielefeld, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ARCAIR CO31985–1989
DUERKOPP ADLER AG11993
Locations
LocationPatentsSpan
Lancaster, OH, US21985–1986
Bielefeld, DE11993
Amanda, OH, US11989