John E. Hartman — 12 Patents at 3M

John E. Hartman has been granted 12 US patents while listed as an inventor at 3M. The first was granted in 1984 and the most recent in April 2006. John E. Hartman ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list John E. Hartman in Mount Pleasant, MI, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7032347	Potted plant hanger assembly	—	2006-04-25
5980339	Hydraulic trim cylinder for marine stern drives and outboard motors	Paul M. Dadd, John T. Venaleck	1999-11-09
5178566	Marine drive system with belt drive	Mark Stojkov, John T. Venaleck, Carl W. Rose, Jr., Charles R. Anspach, Park French +1 more	1993-01-12
4884335	Surface mount compatible connector system with solder strip and mounting connector to PCB	Michael McCoy, John L. Wesbster	1989-12-05	$6,932,000
4798544	Low profile clip connector with integral contact support insert	—	1989-01-17	$7,399,000
4768972	Test clip for PLCC	Martin C. Ignasiak, John N. Tengler	1988-09-06	$8,773,000
4726115	Manufacture of low profile clip connector	—	1988-02-23	$11,699,000
4671592	Test clip for PLCC	Martin C. Ignasiak, John N. Tengler	1987-06-09	$9,745,000
4663815	A method and apparatus for surface mount compatible connector system with mechanical integrity	John T. Venaleck	1987-05-12
4641426	Surface mount compatible connector system with mechanical integrity	John T. Venaleck	1987-02-10
4586688	Fishing rod holder	Roger Petrovich, Frank Bortnick	1986-05-06
4449880	Tiltable platform	—	1984-05-22

John E. Hartman — 12 Patents

Issued Patents All Time

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