Inventor

Stephen J. Szpunar

Inventor

West Chester, OH, US

Overview

1992–2018

Patent span

Mechanical engineering

Primary field (CPC F)

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

Y02Tprimary

Y02TClimate change mitigation technologies related to transportation29%

F01DNon-positive displacement machines or engines, e.g. steam turbines25%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants11%

E21BEarth or rock drilling7%

F02KJet-propulsion plants7%

F04DNon-positive-displacement pumps7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

F16LPipes4%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1992–1998Patents assigned to GEN ELECTRIC (8)· patent assignee history

1992–1998Based in West Chester, OH, US· patent location history

2008Patents assigned to HEICO CORP (1)· patent assignee history

2008Based in Weston, FL, US· patent location history

2015–2018Patents assigned to VETCO GRAY INC (2)· patent assignee history

2015Patents assigned to SZPUNAR STEPHEN JUDE (1)· patent assignee history

2015Based in Fulshear, TX, US· patent location history

2018Based in Houston, TX, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations