Company Filing History:
3 out of 1,167 
1 out of 3,685 
Years Active: 1993-1994
Title: Walter H. Ottersberg: Innovator in Orthopedic Implant Technology
Introduction
Walter H. Ottersberg is a notable inventor based in Warsaw, IN (US), recognized for his contributions to orthopedic implant technology. He holds a total of 3 patents that focus on methods of surface hardening for orthopedic devices, enhancing their performance and durability.
Latest Patents
Ottersberg's latest patents include a method of surface hardening orthopedic implant devices made of titanium. This method involves exposing titanium or titanium alloy implants to molecular nitrogen gas at specific temperatures and durations to improve surface hardness and wear resistance without forming a measurable TiN layer. The process temperature ranges from 750°F to 1300°F, with a preferred temperature of about 1100°F for approximately 8 hours.
Another significant patent involves the surface hardening of cobalt-chromium based orthopedic implant devices. This method similarly enhances surface hardness and wear resistance by exposing cobalt-chromium or cobalt-chromium-molybdenum alloy implants to molecular nitrogen gas or ionized nitrogen at temperatures between 500°F and 2400°F, ideally around 1400°F for about 48 hours. The hardened surface results from nitride formation and solid solution hardening.
Career Highlights
Throughout his career, Walter H. Ottersberg has worked with prominent companies such as Zimmer GmbH and Bristol-Myers Squibb Company. His expertise in orthopedic technology has significantly impacted the field, leading to advancements in implant durability and performance.
Collaborations
Ottersberg has collaborated with notable professionals in the industry, including H. Ravindranath Shetty and Jack E. Parr. Their combined efforts have contributed to the development of innovative solutions in orthopedic implants.
Conclusion
Walter H. Ottersberg's work in surface hardening methods for orthopedic implants showcases his dedication to improving medical technology. His patents reflect a commitment to enhancing the quality and longevity of orthopedic devices, making a lasting impact in the field.