Company Filing History:
2 out of 20 
1 out of 7 
1 out of 3 Years Active: 1990-2009
Title: Innovations by Donald A. Stevens
Introduction
Donald A. Stevens is an accomplished inventor based in Spring Church, Pennsylvania. He holds three patents that showcase his contributions to the fields of medical technology and engineering. His work primarily focuses on advancements in prosthetics and pacemaker technology, which have significant implications for patient care and quality of life.
Latest Patents
One of Stevens' notable inventions is the "Prosthetic Revision Knee System." This invention provides a femoral component and a method for the surgical implantation of a femoral prosthesis. The revision knee implant includes a femoral component with incremental markings and a corresponding cutting block system. This design allows surgeons to position the cutting block optimally adjacent to the distal femur, ensuring precise placement of the femoral component.
Another significant patent is the "Pacemaker with Activity-Dependent Rate Limiting." This pacemaker features a pacing rate that is restricted within a range defined by variable upper and lower rate limits, which change based on the patient's detected activity level. The device senses indicators such as the nonambient temperature of blood in the right ventricle to assess activity levels. The control circuit of the pacemaker adjusts the pacing limits and refractory periods in response to these detected changes.
Career Highlights
Throughout his career, Donald A. Stevens has worked with several prominent companies in the medical field. He has been associated with Cook Pacemaker Corporation and the Medical Engineering and Development Institute, Inc. His experience in these organizations has contributed to his expertise in developing innovative medical devices.
Collaborations
Stevens has collaborated with notable professionals in his field, including Kevin S. Heggs and William L. Johnson. These partnerships have likely enhanced his work and contributed to the successful development of his patents.
Conclusion
Donald A. Stevens is a distinguished inventor whose work in prosthetics and pacemaker technology has made a significant impact on medical advancements. His innovative patents reflect his commitment to improving patient care and enhancing the quality of life for individuals with medical needs.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.