This inventor holds 4 USPTO granted patents. Top assignees: Bell Telephone Laboratories, Western Electric Company, Inc., At&t Bell Laboratories. Active years: 1978-1992.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 2,714 
2 out of 781 
1 out of 3,345 
Years Active: 1978-1992
Title: Walter J Sparzak, Sr: Innovator in Polymer Technology
Introduction
Walter J Sparzak, Sr. is a notable inventor based in Catonsville, MD (US), recognized for his contributions to polymer technology. He holds a total of four patents, showcasing his innovative spirit and dedication to enhancing material properties.
Latest Patents
One of his latest patents is titled "Modified Polymer Containing Articles." This invention reveals that the properties of poly(vinyl chloride) based polymers can be significantly improved through a specific plasticizer system. The use of particular triarylphosphates combined with specific diarylphosphates in precise proportions not only plasticizes the PVC polymer but also results in a transparent, flame-retardant, heat-resistant, and easily workable polymer. The formulation ensures that the diarylphosphate constitutes 30-45% of the total concentration of phosphates, with 45 to 70 parts of phosphates present per 100 parts of the polymer.
Another significant patent is "Coating Composition and Coated Articles." This invention describes a jacketed telephone cord that is encased in a clear, flame-retardant, stable composition that does not exhibit vertical burn characteristics. The composition comprises an all phosphate plasticized PVC, stabilized with a combination of a metallic stabilizer and a cycloaliphatic epoxy.
Career Highlights
Walter J Sparzak, Sr. has had a distinguished career, working with prominent companies such as Western Electric Company, Inc. and Bell Telephone Laboratories. His work in these organizations has contributed to advancements in telecommunications and materials science.
Collaborations
Throughout his career, Sparzak has collaborated with notable individuals, including William C Vesperman and Jae H Choi. These partnerships have likely fostered innovation and the exchange of ideas in the field of polymer technology.
Conclusion
Walter J Sparzak, Sr. is a significant figure in the realm of polymer innovations, with a focus on enhancing the properties of materials for practical applications. His patents reflect a commitment to advancing technology and improving product performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile