Inventor
Marshall D. Graham
Inventor
Nicholasville, KY, US
Overview
Patents· 20 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 properties33%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids8%
C03BManufacture, shaping, or supplementary processes8%
G02BOptical elements, systems or apparatus8%
Y02PClimate change mitigation technologies in the production or processing of goods8%
C03CChemical composition of glasses, glazes or vitreous enamels6%
G03GElectrography6%
B01LChemical or physical laboratory apparatus for general use3%
C02FTreatment of water, waste water, sewage, or sludge3%
C12NMicroorganisms or enzymes3%
PatentTitleYear
10,466,165Compound optical flow cells and method of manufacture and use20199,772,274'Compound optical flow cells and method of manufacture and use'20179,423,336'Systems and methods for particle sensing and characterization'20168,189,187'Monolithic optical flow cells and method of manufacture'20126,300,028'Environmentally stable amorphous silicon photoreceptor and method for making same'20016,259,242'Apparatus incorporating a sensing conduit in conductive material and method of use thereof for sensing and characterizing particles'20016,197,471'Amorphous silicon photoreceptor and method for making same'20016,175,227'Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle'20016,111,398'Method and apparatus for sensing and characterizing particles'20005,766,549'Apparatus for drying blood smear slides'19985,665,312'Blood analysis system having blood storage, transport and automatic slide-making capabilities'19974,666,595'Apparatus for acoustically removing particles from a magnetic separation matrix'19874,664,796'Flux diverting flow chamber for high gradient magnetic separation of particles from a liquid medium'19874,538,885'Optical microscope system'19854,516,522'Slide preparation apparatus'19854,513,438'Automated microscopy system and method for locating and re-locating objects in an image'19854,508,625'Magnetic separation using chelated magnetic ions'19854,508,435'Air vacuum chuck for a microscope'19854,494,479'Slide preparation apparatus'19854,420,720'Field focused particle sensing zone'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1987Patents assigned to COULTER ELECTRONICS (8)· patent assignee history
1983–1987Based in Framingham, MA, US· patent location history
1997–2001Patents assigned to COULTER INT CORP (7)· patent assignee history
1997–2019Based in Nicholasville, KY, US· patent location history
2012–2019Patents assigned to BECKMAN COULTER INC (4)· patent assignee history
2012Patents assigned to ARBOLEDA CARLOS ALBERTO (1)· patent assignee history
2012Patents assigned to CANO JOSE M (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COULTER ELECTRONICS | 8 | 1983–1987 |
| COULTER INT CORP | 7 | 1997–2001 |
| BECKMAN COULTER INC | 4 | 2012–2019 |
| ARBOLEDA CARLOS ALBERTO | 1 | 2012 |
| CANO JOSE M | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nicholasville, KY, US | 11 | 1997–2019 |
| Framingham, Massachusetts, US | 9 | 1983–1987 |