Inventor
Douglas L. Singbeil
Inventor
Burnaby, CA
Overview
Patents· 2 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B32Bprimary
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form14%
C22CAlloys14%
C23FNon-mechanical removal of metallic material from surface14%
F16LPipes14%
F28FDetails of heat-exchange and heat-transfer apparatus, of general application14%
G01NInvestigating or analysing materials by determining their chemical or physical properties14%
Y10TTechnical subjects covered by former us classification14%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986Patents assigned to PULP PAPER RES INST (1)· patent assignee history
1986Based in Pointe-Claire, CA· patent location history
2007Patents assigned to FPINNOVATIONS (1)· patent assignee history
2007Based in Burnaby, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FPINNOVATIONS | 1 | 2007 |
| PULP PAPER RES INST | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Burnaby, CA | 1 | 2007 |
| Pointe-Claire, CA | 1 | 1986 |