Inventor
Richard Littlefield
Inventor
Rochester, NY, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Bprimary
G01BMeasuring length, thickness or similar linear dimensions13%
G01DMeasuring not specially adapted for a specific variable13%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves13%
G02BOptical elements, systems or apparatus13%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them13%
G10KSound-producing devices13%
H04NPictorial communication, e.g. television13%
LOCD113%
PatentTitleYear
5,929,349'Inspection tool for measuring wall thickness of underground storage tanks'19995,555,060'Self calibrating actuator position control system'19965,281,812'Light beam scanning system including piezoelectric means for correction of cross scan error'1994D0277266'Temperature control apparatus'1985D0260971'Temperature control apparatus'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1985Patents assigned to LITTLEFIELD RICHARD (2)· patent assignee history
1981–1985Based in Kennebunk, ME, US· patent location history
1994–1996Patents assigned to EASTMAN KODAK CO (2)· patent assignee history
1994–1996Based in Rochester, NY, US· patent location history
1999Patents assigned to SHELL OIL CO (1)· patent assignee history
1999Based in Sealy, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EASTMAN KODAK CO | 2 | 1994–1996 |
| LITTLEFIELD RICHARDself | 2 | 1981–1985 |
| SHELL OIL CO | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, New York, US | 2 | 1994–1996 |
| Kennebunk, ME, US | 2 | 1981–1985 |
| Sealy, Texas, US | 1 | 1999 |