Inventor
Peter N. Dufault
Inventor
St. Paul, MN, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B05Bprimary
B05BSpraying apparatus25%
G05DSystems for controlling or regulating non-electric variables25%
E03CDomestic plumbing installations for fresh water or waste water13%
H02HEmergency protective circuit arrangements13%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems13%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
10,749,426Trapezoidal power-supply barrier between hazardous and normal locations202010,550,552Method for fluid pressure control in a closed system202010,513,839Method for fluid pressure control in a closed system201910,245,608Method for flow control calibration of high-transient systems2019Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2019–2020Patents assigned to GRACO MINNESOTA INC (3)· patent assignee history
2019–2020Based in St. Paul, MN, US· patent location history
2020Based in Arden Hills, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GRACO MINNESOTA INC | 3 | 2019–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| St. Paul, Minnesota, US | 3 | 2019–2020 |
| Arden Hills, Minnesota, US | 1 | 2020 |