Inventor

Steven A. Heitz

Inventor

Rockford, IL, US

Overview

28→

Patents

1987–2018

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 28 as inventor

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

F04Cprimary

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids17%

F16CShafts13%

Y10TTechnical subjects covered by former us classification10%

F01CRotary-piston or oscillating-piston machines or engines6%

F02CGas-turbine plants6%

F01DNon-positive displacement machines or engines, e.g. steam turbines5%

B01DSeparation4%

F01KSteam engine plants4%

F04DNon-positive-displacement pumps4%

F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants4%

PatentTitleYear

9,964,081Fuel pump system for bubble control2018 9,890,813'Gear pump bearings with hybrid pads'2018 9,863,432'Fluid filtration using splines'2018 9,726,221'Gear pump bearings with hybrid pads'2017 9,689,399'Fluid filtration using splines'2017 9,488,173'Gear pump drive gear stationary bearing'2016 9,488,170'Gear pump driven gear pressure loaded bearing'2016 9,488,171'Gear pump drive gear stationary bearing'2016 9,488,174'Gear pump driven gear stationary bearing'2016 9,453,506'Gear pump drive gear pressure loaded bearing'2016 9,133,772'Fuel system'2015 9,068,568'Inlet cutbacks for high speed gear pump'2015 8,992,193'Shaft assembly including a contained shaft spring load'2015 8,991,152'Aircraft engine fuel system'2015 8,944,767'Fuel system centrifugal boost pump impeller'2015 8,911,222'Input shaft assembly for gear pump'2014 8,613,609'Bi-metal pump gear'2013 8,578,763'System and method for fuel system health monitoring'2013 8,137,085'Gear pump with slots in teeth to reduce cavitation'2012 8,113,804'Vane pump with rotating cam ring and increased under vane pressure'2012 8,087,913'Gear pump with unequal gear teeth on drive and driven gear'2012 5,020,923'Transmission/gearbox vibration damping system'1991 4,793,768'Seal and turbine mount'1988 4,762,146'Flow control valve'1988 4,739,795'Flow control valve'1988 4,696,618'High temperature seal and turbine mount'1987 4,683,722'Charging and ejection system for rankine apparatus'1987 4,648,322'Propulsion and directional control mechanism for an underwater device'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1991Patents assigned to SUNDSTRAND CORP (7)· patent assignee history

1987–2018Based in Rockford, IL, US· patent location history

2012–2018Patents assigned to HAMILTON SUNDSTRAND CORP (21)· patent assignee history

2012–2015Patents assigned to HEITZ STEVEN A (11)· patent assignee history

2012Patents assigned to GRIFFITHS CHRISTIAN L (2)· patent assignee history

2012–2015Patents assigned to NI WEISHUN (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HAMILTON SUNDSTRAND CORP	21	2012–2018
HEITZ STEVEN Aself	11	2012–2015
SUNDSTRAND CORP	7	1987–1991
GRIFFITHS CHRISTIAN L	2	2012
NI WEISHUN	2	2012–2015

Locations

Location	Patents	Span
Rockford, Illinois, US	28	1987–2018