Inventor
John Calhoun
Inventor
Lexington, MA, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Cprimary
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids52%
F01CRotary-piston or oscillating-piston machines or engines12%
Y10TTechnical subjects covered by former us classification12%
B28BShaping clay or other ceramic compositions4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
F01DNon-positive displacement machines or engines, e.g. steam turbines4%
F04BPositive-displacement machines for liquids4%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants4%
Y02TClimate change mitigation technologies related to transportation4%
PatentTitleYear
10,605,095Ceramic matrix composite airfoil cooling202010,473,096Modular pump platform201910,294,939Angular synchronization of stationary and orbiting plate scroll blades in a scroll pump using a metallic bellows201910,094,381Vacuum pump system with light gas pumping and leak detection apparatus comprising the same20189,822,780'Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump'20179,605,674'Vacuum scroll pump having pressure-balanced orbiting plate scroll'20179,435,339'Vibration/noise management in a scroll compressor'20169,341,186'Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump'20169,328,730'Angular synchronization of stationary and orbiting plate scroll blades in a scroll pump using a metallic bellows'20168,961,160'Scroll pump having separable orbiting plate scroll and method of replacing tip seal'20158,622,724'Scroll pump with isolation barrier'20146,220,840'Wall shape for scroll-type compressor vanes'20015,836,752'Scroll-type compressor with spirals of varying pitch'19985,490,769'Variable capacity scroll type fluid displacement apparatus'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1998Patents assigned to SANDEN INTERNATIONAL U S A INC (2)· patent assignee history
1996–2001Based in Dallas, TX, US· patent location history
2014–2019Patents assigned to AGILENT TECHNOLOGIES INC (10)· patent assignee history
2014Patents assigned to BOUDREAU RONALD BERNARD (1)· patent assignee history
2014Patents assigned to CALHOUN JOHN (1)· patent assignee history
2014Patents assigned to FILIP ROMEO BORIS (1)· patent assignee history
2014–2019Based in Lexington, MA, US· patent location history
2020Based in Cincinnati, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AGILENT TECHNOLOGIES INC | 10 | 2014–2019 |
| SANDEN INTERNATIONAL U S A INC | 2 | 1996–1998 |
| BOUDREAU RONALD BERNARD | 1 | 2014 |
| CALHOUN JOHNself | 1 | 2014 |
| FILIP ROMEO BORIS | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lexington, Massachusetts, US | 10 | 2014–2019 |
| Dallas, Texas, US | 3 | 1996–2001 |
| Cincinnati, OH, US | 1 | 2020 |