Inventor
Philip Campbell
Inventor
Seattle, WA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
LOC07primary
LOC0740%
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G01RMeasuring electric variables20%
G11BInformation storage based on relative movement between record carrier and transducer20%
PatentTitleYear
10,401,423Thermal control using phase-change material2019D0818320Combined salt shaker and pourer20189,001,456'Engaging test slots'2015D0679535'Combined spoon and drinking straw'2013D0315077'Combination food grater and stand'19914,645,635'Method and apparatus for determining the properties of wet steam'1987D0284342'Combined pasta measuring and serving utensil'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986Patents assigned to PROGRESSIVE INT CORP (1)· patent assignee history
1986–2018Based in Seattle, WA, US· patent location history
1987Patents assigned to CA ATOMIC ENERGY LTD (1)· patent assignee history
1987Based in Pinawa, CA· patent location history
1991Patents assigned to CAMPBELL PHILIP T (1)· patent assignee history
2013–2018Patents assigned to CAMPBELL PHILIP (3)· patent assignee history
2015–2019Patents assigned to TERADYNE INC (2)· patent assignee history
2015–2019Based in Bedford, NH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CAMPBELL PHILIPself | 3 | 2013–2018 |
| TERADYNE INC | 2 | 2015–2019 |
| CA ATOMIC ENERGY LTD | 1 | 1987 |
| CAMPBELL PHILIP Tself | 1 | 1991 |
| PROGRESSIVE INT CORP | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Seattle, Washington, US | 4 | 1986–2018 |
| Bedford, NH, US | 2 | 2015–2019 |
| Pinawa, CA | 1 | 1987 |