Inventor
David B. Spencer
Inventor
Bedford, MA, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B07Cprimary
B07CPostal sorting42%
G01NInvestigating or analysing materials by determining their chemical or physical properties33%
C22CAlloys8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B22DCasting of metals3%
C22BProduction and refining of metals3%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
PatentTitleYear
9,956,609Metal sorting, melting and fabrication apparatus and methods20188,861,675'Method and apparatus for sorting materials according to relative composition'20148,855,809'Material sorting technology'20148,553,838'High speed materials sorting using X-ray fluorescence'20138,476,545'Sorting pieces of material based on photonic emissions resulting from multiple sources of stimuli'20138,144,831'Method and apparatus for sorting materials according to relative composition'20127,978,814'High speed materials sorting using X-ray fluorescence'20117,848,484'Method and apparatus for sorting materials according to relative composition'20107,763,820'Sorting pieces of material based on photonic emissions resulting from multiple sources of stimuli'20107,616,733'High speed materials sorting using x-ray fluorescence'20097,564,943'Method and apparatus for sorting materials according to relative composition'20097,099,433'Method and apparatus for sorting materials according to relative composition'20066,888,917'High speed materials sorting using x-ray fluorescence'20056,519,315'High speed materials sorting using x-ray fluorescence'20036,266,390'High speed materials sorting using x-ray fluorescence'20013,954,455'Liquid-solid alloy composition'19763,948,650'Composition and methods for preparing liquid-solid alloys for casting and casting methods employing the liquid-solid alloys'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2018Based in Bedford, MA, US· patent location history
2001–2014Patents assigned to SPECTRAMET LLC (13)· patent assignee history
2012–2014Patents assigned to SPENCER DAVID B (5)· patent assignee history
2012–2014Patents assigned to CONLEY R LYNN (4)· patent assignee history
2012–2014Patents assigned to ROOS CHARLES E (4)· patent assignee history
2012–2014Patents assigned to SOMMER JR EDWARD J (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SPECTRAMET LLC | 13 | 2001–2014 |
| SPENCER DAVID Bself | 5 | 2012–2014 |
| CONLEY R LYNN | 4 | 2012–2014 |
| ROOS CHARLES E | 4 | 2012–2014 |
| SOMMER JR EDWARD J | 3 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bedford, Massachusetts, US | 17 | 1976–2018 |