Company Filing History:
2 out of 266 
2 out of 2 
1 out of 1 Years Active: 1995-2011
Title: Harold Richardson Crews: Innovator in Flow Cytometry-Based Hematology Systems
Introduction
Harold Richardson Crews is a notable inventor based in Coral Springs, FL (US). He has made significant contributions to the field of hematology through his innovative inventions. With a total of 6 patents, Crews has focused on developing systems that enhance the analysis of biological samples, particularly blood.
Latest Patents
One of Crews' latest patents is a consumable tube designed for use with a flow cytometry-based hematology system. This invention is particularly useful in analyzing whole blood or blood-derived samples. The system is capable of determining a complete blood count (CBC), a five-part white blood cell differential, and a reticulocyte count from a whole blood sample. It employs a laser diode that emits a thin beam to illuminate cells in a flow cell, along with a lensless optical detection system. This system measures various light scattering and time-of-flight measurements produced by the cells. Notably, the lensless optical detection system contains no optical components other than photoreactive elements and does not include any moving parts. The consumable reagent tubes serve multiple functions, acting as reaction chambers, mixing chambers, and waste chambers for blood sample analyses. These tubes incorporate reference particles that act as internal standards, ensuring proper dilutions during sample processing and confirming the instrument's functionality.
Career Highlights
Throughout his career, Harold Crews has worked with reputable companies such as IDEXX Laboratories, Inc. and Preemptive Advertising Inc. His experience in these organizations has contributed to his expertise in the field of hematology and flow cytometry.
Collaborations
Crews has collaborated with notable individuals in his field, including James Harrison Carter, II and John W. Roche. These collaborations have likely enriched his work and contributed to the advancements in his inventions.
Conclusion
Harold Richardson Crews is a distinguished inventor whose work in flow cytometry-based hematology systems has made a significant impact in the analysis of biological samples. His innovative approach and dedication to improving medical technology continue to influence the field.
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