Inventor
David A. Risk
Inventor
Heatherton, CA
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties50%
G01VGeophysics20%
E21BEarth or rock drilling10%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light10%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock10%
PatentTitleYear
10,203,311Gas emission detection device, system and method20199,891,166'Fiber optic sensor for measurement of carbon dioxide'20188,712,692'Method of measuring the flux of a soil gas'20148,681,336'System and method for determining flux of isotopologues'20147,520,186'Apparatus and method for measuring soil gases'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2014Patents assigned to ST FRANCIS XAVIER UNIVERSITY (3)· patent assignee history
2009–2019Based in Heatherton, CA· patent location history
2014Patents assigned to NICKERSON NICHOLAS R (2)· patent assignee history
2014Patents assigned to BELTRAMI HUGO J (1)· patent assignee history
2014Patents assigned to EGAN JOCELYN ELIZABETH (1)· patent assignee history
2014Patents assigned to MCARTHUR GORDON (1)· patent assignee history
2018Based in Antigonish, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ST FRANCIS XAVIER UNIVERSITY | 3 | 2009–2014 |
| NICKERSON NICHOLAS R | 2 | 2014 |
| BELTRAMI HUGO J | 1 | 2014 |
| EGAN JOCELYN ELIZABETH | 1 | 2014 |
| MCARTHUR GORDON | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Heatherton, CA | 4 | 2009–2019 |
| Antigonish, CA | 1 | 2018 |