Inventor
John D. Lofgren
Inventor
Orlando, FL, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables27%
G06FElectric digital data processing27%
G06TImage data processing or generation, in general18%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general9%
F02DControlling combustion engines9%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
PatentTitleYear
8,283,930'Method and system for compensating for variation in attenuation measurements caused by changes in ambient temperature'20128,055,884'Method and apparatus for augmenting a pipeline with a bubble-removal circuit'20117,653,807'Removing a pipeline bubble by blocking clock signal to downstream stage when downstream stage contains invalid data'20105,872,793'Fast bist architecture with flexible standard interface'19995,825,922'Methods and apparatus for centroid based object segmentation in object recognition-type image processing system'19985,701,308'Fast bist architecture with flexible standard interface'19975,652,912'Versatile memory controller chip for concurrent input/output operations'19975,604,822'Methods and apparatus for centroid based object segmentation in object recognition-type image processing system'19975,600,788'Digital test and maintenance architecture'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–1998Patents assigned to MARTIN MARIETTA CORP (4)· patent assignee history
1997–1999Patents assigned to LOCKHEED CORP (2)· patent assignee history
1997–2011Based in Orlando, FL, US· patent location history
2010–2011Patents assigned to SYNOPSYS INC (2)· patent assignee history
2012Patents assigned to DAVENPORT DAVID MICHAEL (1)· patent assignee history
2012Patents assigned to GEN ELECTRIC (1)· patent assignee history
2012Based in Milwaukee, WI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MARTIN MARIETTA CORP | 4 | 1997–1998 |
| LOCKHEED CORP | 2 | 1997–1999 |
| SYNOPSYS INC | 2 | 2010–2011 |
| DAVENPORT DAVID MICHAEL | 1 | 2012 |
| GEN ELECTRIC | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Orlando, Florida, US | 8 | 1997–2011 |
| Milwaukee, WI, US | 1 | 2012 |