Company Filing History:
2 out of 49 
2 out of 13 Years Active: 2000-2004
Title: The Innovative Contributions of Karen K. Spreda
Introduction
Karen K. Spreda is a notable inventor based in Plover, Wisconsin, who has made significant contributions to the field of coating compositions for ink jet recording mediums. With a total of four patents to her name, her work focuses on enhancing the performance and quality of ink jet printing technologies.
Latest Patents
Among her latest patents is a method for making a high solids interactive coating composition and ink jet recording medium. This innovative coating composition comprises an aqueous suspension of binder, a cationic fixing agent, an absorptive pigment, and a sizing agent. The composition combines a solids content of greater than 30% with good runnability, and it is preferably dispersed at pH values ranging from 4.5 to 7.0. The pigment used in this composition is a mixture of 50% or more silica gel, which has a pore volume of 0.5-2.0 cc/g, and 10% or more alumina or alumina hydrate. Additionally, she has developed a low pH coating composition for ink jet recording mediums, which includes an aqueous suspension of absorptive silica pigment, a polyvinyl alcohol binder, and a cationic fixing agent, dispersed at pH values between 4.0 and 7.0.
Career Highlights
Throughout her career, Karen has worked with prominent companies such as Consolidated Papers, Inc. and Stora Enso North America Corporation. Her experience in these organizations has allowed her to refine her expertise in the development of innovative coating solutions.
Collaborations
Karen has collaborated with notable colleagues, including Leonard J. Schliesman, Jr. and Leland O. Tritz, who have contributed to her projects and innovations in the field.
Conclusion
Karen K. Spreda's contributions to the field of ink jet recording mediums through her innovative patents and collaborations highlight her significant role as an inventor. Her work continues to influence advancements in coating technologies.