Inventor
Richard D. Nathenson
Inventor
Pittsburgh, PA, US
Overview
25→
Patents
1981–2014
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines17%
E02FDredging15%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution15%
B22DCasting of metals10%
G21CNuclear reactors8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
B08BCleaning in general6%
Y10TTechnical subjects covered by former us classification6%
F16KValves4%
B05BSpraying apparatus2%
PatentTitleYear
8,719,997'Pass-through vacuum'20147,676,965'Air powered vacuum apparatus'20106,321,766'Electromagnetic flow control valve for a liquid metal with built-in flow measurement'2001D0435207'Handle for pneumatic excavation tool'20006,158,152'Pneumatic excavator'20006,044,858'Electromagnetic flow control valve for a liquid metal'20005,966,847'Pneumatic excavator'1999D0408830'Pneumatic nozzle'19995,860,232'Mobile safe excavation system having a deflector plate and vacuum source'19995,782,414'Contoured supersonic nozzle'19985,487,229'Apparatus for pneumatic excavation'1996H0000892'Thin sheet casting with electromagnetic pressurization'19914,936,031'Apparatus for excavating soil and the like using supersonic jets'19904,919,192'Discrete excitation coil producing seal at continuous casting machine pouring tube outlet nozzle/mold inlet interface'19904,842,054'Pump/heat exchanger assembly for pool-type reactor'19894,808,080'Flow coupler assembly for double-pool-type reactor'19894,802,531'Pump/intermediate heat exchanger assembly for a liquid metal reactor'19894,693,299'Continuous metal casting apparatus'19874,688,996'Electromagnetic flow coupler for regulating flow rate/pressure'19874,458,166'Dynamoelectric machine with a salient pole rotor'19844,434,382'Viscoelastic support for dynamoelectric machines'19844,431,932'Advanced spiral pancake armature for a dynamoelectric machine'19844,427,907'Spiral pancake armature winding module for a dynamoelectric machine'19844,365,176'Liquid cooling system for a hydrogenerator rotor'19824,303,842'Hydrogenerator with an internally cooled rotor winding of salient pole construction'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1990Patents assigned to WESTINGHOUSE ELECTRIC CORP (6)· patent assignee history
1981–2000Based in Squirrel Hill, PA, US· patent location history
1982–2014Based in Pittsburgh, PA, US· patent location history
1984–1996Patents assigned to ELECTRIC POWER RES INST (7)· patent assignee history
1999–2000Patents assigned to CONCEPT ENGINEERING GROUP INC (4)· patent assignee history
1999–2000Patents assigned to CONCEPT ENG GROUP INC (2)· patent assignee history
2000Based in Allegheny County, PA, US· patent location history
2010–2014Patents assigned to GUARDAIR CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ELECTRIC POWER RES INST | 7 | 1984–1996 |
| WESTINGHOUSE ELECTRIC CORP | 6 | 1981–1990 |
| CONCEPT ENGINEERING GROUP INC | 4 | 1999–2000 |
| CONCEPT ENG GROUP INC | 2 | 1999–2000 |
| GUARDAIR CORP | 2 | 2010–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Pittsburgh, Pennsylvania, US | 20 | 1982–2014 |
| Squirrel Hill, Pennsylvania, US | 4 | 1981–2000 |
| Allegheny County, Pennsylvania, US | 1 | 2000 |