Inventor
Robert D. Varrin, Jr.
Inventor
Reston, VA, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B08Bprimary
B08BCleaning in general13%
F22BMethods of steam generation13%
F28GCleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes or boilers13%
G21FProtection against x-radiation, gamma radiation, corpuscular radiation or particle bombardment10%
C02FTreatment of water, waste water, sewage, or sludge7%
C23GCleaning or de-greasing of metallic material by chemical methods other than electrolysis7%
G21CNuclear reactors7%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%
C23CCoating metallic material4%
B01DSeparation3%
PatentTitleYear
10,052,667Ultrasonically cleaning vessels and pipes20189,841,184'Method and apparatus for evaluating repair and remediation alternatives for heat exchangers'20179,767,927'Particulate removal system'20179,498,802'Methods of reusing a cleaning solution'20168,999,072'Chemical cleaning method and system with steam injection'20158,728,246'Method and composition for removing deposits'20148,459,277'Chemical cleaning method and system with steam injection'20138,433,030'Crystal habit modifiers for nuclear power water chemistry control of fuel deposits and steam generator crud'20138,262,806'Low-pressure sludge removal method and apparatus using coherent jet nozzles'20127,967,918'Low-pressure sludge removal method and apparatus using coherent jet nozzles'20117,857,911'Scale conditioning agents and treatment method'20107,542,539'Apparatus and method for ultrasonically cleaning irradiated nuclear fuel assemblies'20097,344,602'Scale conditioning agents and treatment method'20086,955,706'Liquid degassing system for power plant system layup'20056,740,168'Scale conditioning agents'20046,572,709'Ultrasonic cleaning method'20036,396,892'Apparatus and method for ultrasonically cleaning irradiated nuclear fuel assemblies'20026,333,072'Method of producing adherent metal oxide coatings on metallic surfaces'20015,913,320'Sludge removal system'19995,280,967'Device for indicating the proper installation of fittings'19945,085,885'Plasma-induced, in-situ generation, transport and use or collection of reactive precursors'19925,015,503'Apparatus for producing compound semiconductor thin films'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1992Patents assigned to UNIV DELAWARE (2)· patent assignee history
1991–1992Based in Newark, DE, US· patent location history
1994Based in Newton, MA, US· patent location history
1999–2001Based in McLean, VA, US· patent location history
2002–2013Patents assigned to ELECTRIC POWER RES INST (3)· patent assignee history
2002–2018Based in Reston, VA, US· patent location history
2003–2018Patents assigned to DOMINION ENG INC (11)· patent assignee history
2012–2017Patents assigned to VARRIN JR ROBERT D (4)· patent assignee history
2013–2015Patents assigned to LITTLE MICHAEL J (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOMINION ENG INC | 11 | 2003–2018 |
| VARRIN JR ROBERT Dself | 4 | 2012–2017 |
| ELECTRIC POWER RES INST | 3 | 2002–2013 |
| LITTLE MICHAEL J | 3 | 2013–2015 |
| UNIV DELAWARE | 2 | 1991–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Reston, Virginia, US | 17 | 2002–2018 |
| McLean, Virginia, US | 2 | 1999–2001 |
| Newark, Delaware, US | 2 | 1991–1992 |
| Newton, Massachusetts, US | 1 | 1994 |