Inventor
David E. Johnson
Inventor
Cortlandt Manor, NY, US
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing26%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
G01VGeophysics7%
B66DCapstans6%
F24DDomestic- or space-heating systems, e.g. central heating systems6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
C02FTreatment of water, waste water, sewage, or sludge4%
F01KSteam engine plants4%
F02BInternal-combustion piston engines4%
F02GHot gas or combustion-product positive-displacement engine plants4%
PatentTitleYear
10,859,275Modulation control of hydronic systems202010,507,316Implantable fluid router20199,863,646'Modulation control of hydronic systems'20189,366,778'Pulse induction metal detector with quasi-resonant transmitter and associated method'20168,140,323'Method and system for extracting information from unstructured text using symbolic machine learning'20127,683,661'Method to reduce the pin count on an integrated circuit and associated apparatus'20107,658,335'Hydronic heating system'2010D0583974'Motion-sensing security light and alarm'20087,201,366'Electronic winch monitoring system'20077,177,796'Automated set up of web-based natural language interface'20077,162,413'Rule induction for summarizing documents in a classified document collection'20077,063,306'Electronic winch monitoring system'20066,697,998'Automatic labeling of unlabeled text data'20046,618,715'Categorization based text processing'20036,618,722'Session-history-based recency-biased natural language document search'20036,574,624'Automatic topic identification and switch for natural language search of textual document collections'20036,567,805'Interactive automated response system'20036,553,385'Architecture of a framework for information extraction from natural language documents'20036,519,580'Decision-tree-based symbolic rule induction system for text categorization'20036,477,551'Interactive electronic messaging system'20026,418,434'Two stage automated electronic messaging system'20024,868,504'Apparatus and method for locating metal objects and minerals in the ground with return of energy from transmitter coil to power supply'19894,653,269'Heat engine'19874,628,265'Metal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignment'19864,579,044'Two-speed shift valve'19864,514,692'Metal detector and discriminator using differentiation for background signal suppression'19854,369,623'Positive displacement engine with separate combustion chamber'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–2019Patents assigned to JOHNSON DAVID E (5)· patent assignee history
1983–1987Based in Canandaigua, NY, US· patent location history
1985–1986Patents assigned to FRL INC (2)· patent assignee history
1985–1989Based in Los Banos, CA, US· patent location history
1986–2007Patents assigned to PACCAR INC (3)· patent assignee history
2002–2012Patents assigned to IBM (12)· patent assignee history
2002–2012Based in Cortlandt Manor, NY, US· patent location history
2006–2007Based in Coweta, OK, US· patent location history
2010–2020Based in Indianapolis, IN, US· patent location history
2019Patents assigned to FIELDER PAUL D (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 12 | 2002–2012 |
| JOHNSON DAVID Eself | 5 | 1983–2019 |
| PACCAR INC | 3 | 1986–2007 |
| FRL INC | 2 | 1985–1986 |
| FIELDER PAUL D | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cortlandt Manor, New York, US | 12 | 2002–2012 |
| Indianapolis, IN, US | 3 | 2010–2020 |
| Los Banos, California, US | 3 | 1985–1989 |
| Coweta, OK, US | 2 | 2006–2007 |
| Canandaigua, New York, US | 2 | 1983–1987 |