Inventor
Ted D. Grabau
Inventor
Marshalltown, IA, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Kprimary
F16KValves34%
Y10TTechnical subjects covered by former us classification16%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
F16JPistons8%
G05BControl or regulating systems in general6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
G01MTesting static or dynamic balance of machines or structures4%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering2%
PatentTitleYear
10,845,272Laboratory testing-based valve prognostics202010,718,727Valve prognostics for polymeric components based on accelerated aging techniques202010,317,896Methods and apparatus to use vibration data to determine a condition of a process control device201910,151,397Composite valve plugs and related methods20189,528,629'Methods and apparatus to use vibration data to determine a condition of a process control device'20169,360,128'Graphite/metal valve seal assembly for high temperature control valves'20169,341,273'Composite dynamic valve seal assembly for high temperature control valves'20169,052,022'Bellows energized seal assembly for a rotary control valve'20158,839,680'Methods and apparatus for estimating a condition of a seal of a rotary valve'20148,622,367'Low friction live-loaded packing'20148,152,132'Pneumatic actuator having diaphragm retention ring'20127,976,955'Vulcanized rubber composition and articles manufactured therefrom'20117,963,502'Low friction live-loaded packing'20117,766,045'Fluid pressure reduction device for high pressure-drop ratios'20107,288,323'Vulcanized rubber composition and articles manufactured therefrom'20076,840,520'Valve plug seal assembly'20056,345,234'Fugitive emission sensing system'20025,823,540'Polymer reinforced fluid seal'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2016Patents assigned to FISHER CONTROLS INT (13)· patent assignee history
1998–2020Based in Marshalltown, IA, US· patent location history
2012–2015Patents assigned to GRABAU TED D (2)· patent assignee history
2014–2016Patents assigned to GRABAU TED DENNIS (3)· patent assignee history
2014–2016Patents assigned to ANDERSON SHAWN WILLIAM (2)· patent assignee history
2016–2020Patents assigned to FISHER CONTROLS INT LLC (5)· patent assignee history
2019Based in Mashalltown, IA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FISHER CONTROLS INT | 13 | 1998–2016 |
| FISHER CONTROLS INT LLC | 5 | 2016–2020 |
| GRABAU TED DENNISself | 3 | 2014–2016 |
| ANDERSON SHAWN WILLIAM | 2 | 2014–2016 |
| GRABAU TED Dself | 2 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Marshalltown, IA, US | 17 | 1998–2020 |
| Mashalltown, IA, US | 1 | 2019 |