Inventor
Stephen H. Humphrey
Inventor
Pleasant Hill, MO, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B61Lprimary
B61LGuiding railway traffic13%
F21KNon-electric light sources using luminescence8%
F21VFunctional features or details of lighting devices or systems thereof8%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted8%
G02BOptical elements, systems or apparatus8%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general4%
B29CShaping or joining of plastics4%
B29LIndexing scheme associated with subclass b29c, relating to particular articles4%
B60TVehicle brake control systems or parts thereof4%
B61CLocomotives4%
PatentTitleYear
11,081,943Distributed stator winding20219,964,280Apparatus for controlling the re-distribution of light emitted from a light-emitting diode20189,908,542'Event recorder with configurable alarm/event monitoring'20189,868,430'Communication network having locomotive expansion module'20189,410,870'Method and system for data redundancy storage'20169,322,515'Apparatus for controlling the re-distribution of light emitted from a light-emitting diode'20167,731,129'Methods and systems for variable rate communication timeout'20106,783,719'Mold with metal oxide surface compatible with ionic release agents'20045,163,753'Differential thermal analysis calorimeter for thermal hazard testing'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992Patents assigned to DOW CHEMICAL CO (1)· patent assignee history
2004–2018Patents assigned to KORRY ELECTRONICS CO (3)· patent assignee history
2004Based in Seattle, WA, US· patent location history
2010Patents assigned to GEN ELECTRIC (1)· patent assignee history
2010–2018Based in Pleasant Hill, MO, US· patent location history
2016–2018Patents assigned to PROGRESS RAIL SERVICES CORP (3)· patent assignee history
2016Based in Lynnwood, WA, US· patent location history
2018Based in Everett, WA, US· patent location history
2021Patents assigned to BORGWARNER INC (1)· patent assignee history
2021Based in Anderson, IN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KORRY ELECTRONICS CO | 3 | 2004–2018 |
| PROGRESS RAIL SERVICES CORP | 3 | 2016–2018 |
| BORGWARNER INC | 1 | 2021 |
| DOW CHEMICAL CO | 1 | 1992 |
| GEN ELECTRIC | 1 | 2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pleasant Hill, MO, US | 4 | 2010–2018 |
| Anderson, IN, US | 1 | 2021 |
| Everett, Washington, US | 1 | 2018 |
| Lynnwood, Washington, US | 1 | 2016 |
| Seattle, Washington, US | 1 | 2004 |