Ortho Diagnostic
30Patents
0Active
30Granted
36Portfolio score
Filing activity: Apr 8, 1975 → Apr 11, 1985
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4284412A | Method and apparatus for automated identification and enumeration of specified blood cell subclasses | Emerging Cross-Sectional Technologies | 164 | Expired |
| US4325483A | Method for detecting and controlling flow rates of the droplet forming stream of an electrostatic particle sorting apparatus | Emerging Cross-Sectional Technologies | 93 | Expired |
| US4318480A | Method and apparatus for positioning the point of droplet formation in the jetting fluid of an electrostatic sorting device | Emerging Cross-Sectional Technologies | 87 | Expired |
| US4318481A | Method for automatically setting the correct phase of the charge pulses in an electrostatic flow sorter | Emerging Cross-Sectional Technologies | 85 | Expired |
| US4318483A | Automatic relative droplet charging time delay system for an electrostatic particle sorting system using a relatively moveable stream surface sensing system | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4318482A | Method for measuring the velocity of a perturbed jetting fluid in an electrostatic particle sorting system | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4317520A | Servo system to control the spatial position of droplet formation of a fluid jet in a cell sorting apparatus | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4743542A | Method for forestalling the hook effect in a multi-ligand immunoassay system | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4577964A | Apparatus and method for detecting platelets in whole blood | Physics | 38 | Expired |
| US4284355A | Automated method for cell volume determination | Physics | 37 | Expired |
| US4289648A | Blood gas controls composition, method and apparatus | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4289498A | One-stage prothrombin assay and compositions useful therein | Physics | 30 | Expired |
| US4021540A | Preparation of a hepatitis B immune globulin and use thereof as a prophylactic material | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4140662A | Attachment of proteins to inert particles | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4217780A | Automated, self-cleaning fluid sampling apparatus | Physics | 20 | Expired |
| US4039285A | Single sample method for determination of lipoprotein concentrations in blood | Emerging Cross-Sectional Technologies | 14 | Expired |
| US3975156A | Method and material for detecting and quantitating fetal erythrocytes in adults | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4136161A | Stabilized erythrocytes and methods therefor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4100267A | Method of detecting hepatitis B core antigen and antibody | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4237424A | Gated baseline corrector | Electricity | 9 | Expired |
| US4046871A | Compositions and serological methods including bovine serum albumin polymers | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4202625A | Method and apparatus for discriminating red blood cells from platelets | Physics | 8 | Expired |
| US4358436A | Blood typing tests and reagents | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4375347A | Apparatus for promoting the formation of microparticles | Chemistry; Metallurgy | 7 | Expired |
| USD265793S | Tablet dispenser | General | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.