Inventor

Russell W. Dreyfus

Inventor
Mount Kisco, NY, US

Overview

13→
Patents
1977–1998
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Rprimary
G01RMeasuring electric variables35%
H01JElectric discharge tubes or discharge lamps18%
G01NInvestigating or analysing materials by determining their chemical or physical properties12%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1012%
C23FNon-mechanical removal of metallic material from surface6%
G10KSound-producing devices6%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light6%
H04NPictorial communication, e.g. television6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1989Patents assigned to IBM (12)· patent assignee history
1977Based in Cross River, NY, US· patent location history
1980–1989Based in Mount Kisco, NY, US· patent location history
1987Based in Mt. Misco, NY, US· patent location history
1998Patents assigned to HODGSON R T (1)· patent assignee history
1998Based in Madrid, ES· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IBM121977–1989
HODGSON R T11998
Locations
LocationPatentsSpan
Mount Kisco, New York, US101980–1989
Madrid, ES11998
Mt. Misco, New York, US11987
Cross River, New York, US11977