Inventor
John W. Pettit
Inventor
Derwood, MD, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties24%
B82YSpecific uses or applications of nanostructures10%
Y10TTechnical subjects covered by former us classification10%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms7%
B01LChemical or physical laboratory apparatus for general use5%
G01BMeasuring length, thickness or similar linear dimensions5%
G05DSystems for controlling or regulating non-electric variables5%
H03KPulse technique5%
B29CShaping or joining of plastics2%
B41JTypewriters2%
PatentTitleYear
9,656,261'DNA analyzer'20179,067,207'Optical approach for microfluidic DNA electrophoresis detection'20158,380,018'Conductive coating based on polymer-carbon nanotube composite'20138,218,930'High-reliability optical fiber having a nanocomposite coating'20128,013,359'Optically controlled electrical switching device based on wide bandgap semiconductors'20117,286,210'Passive optical sensor using carbon nanotubes'20077,116,750'Method for detecting and measuring a secondary material intermittently deposited to a moving substrate'20066,210,973'Method for automated flourescent tagged sample detecting'20015,955,030'Apparatus for automated DNA sequencing'19995,821,536'Solid state infrared gauge'19985,556,790'Method for Automated DNA sequencing'19965,376,798'Weight measuring apparatus'19945,099,504'Thickness/density mesuring apparatus'19924,669,040'Self-tuning controller'19874,434,356'Regulated current source for thermal printhead'19844,180,704'Detection circuit for a bi-directional, self-imaging grating detector'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1984Patents assigned to IBM (2)· patent assignee history
1979–1984Based in Lexington, KY, US· patent location history
1987–2017Based in Derwood, MD, US· patent location history
1992–1994Patents assigned to ADAPTIVE TECH (2)· patent assignee history
1998–2013Based in Rockville, MD, US· patent location history
2001Based in Rockvill, MD, US· patent location history
2007–2017Patents assigned to PETTIT JOHN W (6)· patent assignee history
2015–2017Patents assigned to BELL H RANDALL (2)· patent assignee history
2015–2017Patents assigned to BIENVENUE JOAN M (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PETTIT JOHN Wself | 6 | 2007–2017 |
| ADAPTIVE TECH | 2 | 1992–1994 |
| BELL H RANDALL | 2 | 2015–2017 |
| BIENVENUE JOAN M | 2 | 2015–2017 |
| IBM | 2 | 1979–1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Derwood, Maryland, US | 8 | 1987–2017 |
| Rockville, Maryland, US | 5 | 1998–2013 |
| Lexington, KY, US | 2 | 1979–1984 |
| Rockvill, Maryland, US | 1 | 2001 |