Inventor

ROCK JEFFREY A

US96 patents

⚠️ This page may combine multiple inventors who share the name “ROCK JEFFREY A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ROCK JEFFREY A

GEN MOTORS CORP

Stamped bipolar plate for PEM fuel cell stack

Reactant feed for nested stamped plates for a compact fuel cell

Lambda sensing with a fuel cell stack

Self-contained fuel pressure regulator

Stamped fuel cell bipolar plate

Twist lock attachment for a thermal probe

Fuel cell stack design and method of operation

Branched fluid channels for improved fluid flow through fuel cell

Device and method to expand operating range of a fuel cell stack

Stamped bipolar plate for PEM fuel cell stack

Method and apparatus for providing a uniform fuel cell stack structure

End plates for a fuel cell stack structure

Vehicle emission air injection

Fuel injection nozzle

Bipolar plate assembly having transverse legs

Fuel injection nozzle

Compact fuel cell stack structure

One piece bipolar plate with spring seals

GM GLOBAL TECH OPERATIONS INC

Metal bead seal for fuel cell plate

Fuel cell stack compression retention system with external springs

Seal for PEM fuel cell plate

Bifurcation of flow channels in bipolar plate flowfields

Pressurized coolant for stamped plate fuel cell without diffusion media in the inactive feed region

Stamped fuel cell bipolar plate

Hemmed fuel cell stack enclosure

Combined subgasket and membrane support

Diffusion media for seal support for improved fuel cell design

Bipolar plate with inlet and outlet water management features

Sealing design for stamped plate fuel cells

Fuel cell bipolar plate exit for improved flow distribution and freeze compatibility

Fuel cell stack compression retention system using overlapping sheets

PTC element as a self regulating start resistor for a fuel cell stack

Individual cell shorting during startup and shutdown using an integrated switch

Aligning method for repeating and non-repeating units in a fuel cell stack

Bipolar plate with cross-linked channels

ROCK JEFFREY A

Fuel cell fabrication using photopolymer based processes

Fuel cell fabrication using photopolymer based processes

Fuel cell fabrication using photopolymer based processes

Method to produce a fuel cell flowfield with photopolymer walls

Dual channel step in fuel cell plate

Layered radiation-sensitive materials with varying sensitivity

Fuel cell with microtruss water vapor transport device

Separator plates formed by photopolymer based processes

Diffusion media formed by photopolymer based processes

Aligning method for repeating and non-repeating units in a fuel cell stack

GM GLOBAL TECH OPERATIONS LLC

Method of manufacturing a fuel cell stack

Fuel cell stack re-compression method and design

Fuel cell stack assembly

OWEJAN JON P

Bipolar plate header formed features

FLY GERALD W

Combined subgasket and membrane support