Inventor
Stephen B. Friedman
Inventor
Chapel Hill, NC, US
Overview
Patents· 14 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 properties48%
C07KPeptides21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
5,858,692'Polychlorinated biphenyls (PCB) immunoassay method, its components and a kit for use in performing the same'19995,834,222'Polychlorinated biphenyls (PCB) immunoassay method, its components and a kit for use in performing the same'19985,691,148'Petroleum immunoassay method, its components and a kit for use in performing the same'19975,679,574'Quantitative test for oils, crude oil, hydrocarbon, or other contaminants in soil and a kit for performing the same'19975,618,681'Polyaromatic hydrocarbon (PAH) immunoassay method, its components and a kit for use in performing the same'19975,547,877'Methods for the rapid detection of toxic halogenated hydrocarbons and kits useful in performing the same'19965,484,709'Immunoassay method for detecting an immunologically non-remarkable compound, its components and a kit for use in performing the same'19965,449,611'Polyaromatic hydrocarbon (PAH) immunoassay method, its components and a kit for use in performing the same'19955,244,786'Method of measuring available free thyroxine bending sites'19935,200,346'Aldicarb immunoassay by sulfone equivalents'19935,032,503'Liquid single reagent for air enzyme complementation assay'19914,055,394'Diagnostic test card'19773,990,850'Diagnostic test card'19763,956,477'Method and erythrocyte preparation for reverse blood grouping'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1977Patents assigned to AKZONA INC (3)· patent assignee history
1976–1977Based in Claremont, CA, US· patent location history
1976Based in Stanhope, NJ, US· patent location history
1991–1993Patents assigned to MICROGENICS CORP (2)· patent assignee history
1991Based in Suisun City, CA, US· patent location history
1993–1999Patents assigned to ENSYS INC (6)· patent assignee history
1993–1999Based in Chapel Hill, NC, US· patent location history
1993Based in Green Valley, CA, US· patent location history
1996–1997Patents assigned to ENSYS ENVIRONMENT PROD INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ENSYS INC | 6 | 1993–1999 |
| AKZONA INC | 3 | 1976–1977 |
| ENSYS ENVIRONMENT PROD INC | 3 | 1996–1997 |
| MICROGENICS CORP | 2 | 1991–1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chapel Hill, NC, US | 9 | 1993–1999 |
| Claremont, California, US | 2 | 1976–1977 |
| Green Valley, California, US | 1 | 1993 |
| Suisun City, California, US | 1 | 1991 |
| Stanhope, New Jersey, US | 1 | 1976 |