Location History:
- Lindenhurst, IL (US) (1992)
- Wildwood, IL (US) (1991 - 1994)
Company Filing History:
Years Active: 1991-1994
Title: Innovations by James D. Defreese
Introduction
James D. Defreese is an accomplished inventor based in Wildwood, IL (US). He has made significant contributions to the field of biological sample analysis, holding a total of 3 patents. His work primarily focuses on immunoassays and biological sample analyzers, which have important applications in medical diagnostics.
Latest Patents
One of his latest patents is titled "Test array for performing assays." This invention provides a semi-automated biological sample analyzer that can simultaneously perform multiple enzyme immunoassays for human IgE class antibodies specific to a panel of preselected allergens. The system includes a carousel that positions and holds multiple reaction cartridges, each containing isolated test sites in a two-dimensional array. An optical reader is integrated to read the results from each test site, ensuring precise measurements.
Another notable patent is "Multilayer solid phase immunoassay support and method of use." This innovation allows for the simultaneous detection of various antigens or immunoglobulins from one or multiple infectious agents on a single solid support. The test sample interacts with the solid support, where antigen-antibody complexes are formed and detected, enhancing the efficiency of immunoassays.
Career Highlights
James D. Defreese is currently associated with Abbott Laboratories Corporation, a leading company in the healthcare sector. His work at Abbott has allowed him to contribute to advancements in diagnostic technologies, improving the accuracy and efficiency of medical testing.
Collaborations
Throughout his career, James has collaborated with notable colleagues, including Carl W. Merkh and Benton A. Durley, III, who is now deceased. These collaborations have enriched his work and contributed to the development of innovative solutions in the field of immunoassays.
Conclusion
James D. Defreese's contributions to the field of biological sample analysis through his patents and work at Abbott Laboratories Corporation highlight his role as a significant innovator in medical diagnostics. His inventions continue to impact the healthcare industry positively.