John H. Spence — 2 Patents at Pullman Standard

John H. Spence — 2 Patents

PSPullman Standard: 1 patents #11 of 20Top 60%

TPThe Pullman: 1 patents #67 of 165Top 45%

Hammond, IN: #85 of 261 inventorsTop 35%

Indiana: #13,817 of 33,936 inventorsTop 45%

Overall (All Time): #1,709,992 of 4,157,543Top 45%

John H. Spence has been granted 2 US patents while listed as an inventor at Pullman Standard. The first was granted in 1980 and the most recent in December 1986. John H. Spence ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John H. Spence in Hammond, IN, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4630547	Cross bearer arrangement for slotted center sill	Phillip G. Przybylinski	1986-12-23	$809,000
4206710	Railway car center plate filler arrangement	—	1980-06-10	$1,624,000

John H. Spence — 2 Patents

Issued Patents All Time

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