Inventor
Derek Montgomery
Inventor
New Westminster, CA
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus31%
H04NPictorial communication, e.g. television19%
B41JTypewriters13%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock13%
G01FMeasuring volume, volume flow, mass flow or liquid level6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
G03CPhotosensitive materials for photographic purposes6%
H03KPulse technique6%
PatentTitleYear
7,911,591'Optical transit time velocimeter'20117,265,832'Optical flow meter for measuring gases and liquids in pipelines'20076,667,831'Compact telescope'2003RE038297'Internal drum scophony raster recording device'20036,117,625'Method and apparatus for creating a composite image by the tiling of multiple image frames'20005,923,359'Internal drum scophony raster recording device'19995,090,791'Self-illuminated fibre optic switch'19925,046,806'Single fibre control switches'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991Patents assigned to CST COLDSWITCH HOLDINGS INC (1)· patent assignee history
1991–1992Based in Vancouver, CA· patent location history
1992Patents assigned to KIDDER JOHN S (1)· patent assignee history
1999Patents assigned to CYMBOLIC SCIENCES INTERNATIONA (1)· patent assignee history
1999–2011Based in New Westminster, CA· patent location history
2000Patents assigned to CYMBOLIC SCIENCES INC (1)· patent assignee history
2003Based in Vancouver, British Columbia, CA· patent location history
2007–2011Patents assigned to PHOTON CONTROL INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHOTON CONTROL INC | 2 | 2007–2011 |
| CST COLDSWITCH HOLDINGS INC | 1 | 1991 |
| CYMBOLIC SCIENCES INC | 1 | 2000 |
| CYMBOLIC SCIENCES INTERNATIONA | 1 | 1999 |
| KIDDER JOHN S | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Westminster, CA | 5 | 1999–2011 |
| Vancouver, CA | 2 | 1991–1992 |
| Vancouver, British Columbia, CA | 1 | 2003 |