Inventor

Michael D. Crawford

Inventor

Rochester Hills, MI, US

Overview

1997–2021

Patent span

Performing operations

Primary field (CPC B)

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

B21Dprimary

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material13%

B21JForging13%

B23KSoldering or unsoldering13%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling13%

B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding13%

Y10TTechnical subjects covered by former us classification13%

A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing6%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy6%

LOC216%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1997Patents assigned to DETROIT CENTER TOOL (1)· patent assignee history

1997–2000Based in Rochester Hills, MI, US· patent location history

1998Patents assigned to DCT AVANCED ENGINEERING INC (1)· patent assignee history

1999Patents assigned to CRAWFORD MICHAEL D (1)· patent assignee history

1999Based in New Hampton, NY, US· patent location history

2000Patents assigned to DCT ADVANCED ENGINEERING INC (1)· patent assignee history

2021Patents assigned to GUARDIAN INNOVATIONS LLC (1)· patent assignee history

2021Based in Chamblee, GA, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CRAWFORD MICHAEL Dself	1	1999
DCT ADVANCED ENGINEERING INC	1	2000
DCT AVANCED ENGINEERING INC	1	1998
DETROIT CENTER TOOL	1	1997
GUARDIAN INNOVATIONS LLC	1	2021

Locations