Finchville, KY, United States of America

Douglas A Kieper

This inventor holds 9 USPTO granted patents and 2 published patent applications. Top assignee: Nibco Incorporated. Active years: 1994-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Douglas A Kieper. Retrieved from https://idiyas.com/inventor/douglas-a-kieper

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 9 

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 6

Forward Citations = 129(Granted Patents)


Location History:

  • Finchville, KY (US) (1994 - 1998)
  • Clovis, CA (US) (1998)
  • Sellersburg, IN (US) (2015 - 2016)

Company Filing History:


Years Active: 1994-2016

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9 patents (USPTO):Explore Patents

Title: The Innovative Mind of Douglas A Kieper

Introduction

Douglas A Kieper, a notable inventor residing in Finchville, Kentucky, has made significant contributions to the field of plumbing through his innovative designs. With a total of 9 patents to his name, Kieper's work showcases an impressive dedication to enhancing functionality and efficiency in plumbing fittings.

Latest Patents

Among Kieper's most recent patents is a unique coupling design for plumbing applications. This invention includes a polymeric tailpiece designed to connect a water supply line to a second plumbing fitting. One end of the tailpiece is adapted for coupling to a conduit, while the opposite end is equipped with an outwardly extending annular flange featuring an annular face surface. The design incorporates a circular recess in the face surface for accommodating a seal. A specially designed nut is positioned over the tailpiece, comprising an inwardly extending annular rim that engages a side of the flange opposite the face surface. This innovative nut is made from a polymeric material, which includes internal threads and a concentric metal insert that has threading to facilitate a secure connection.

Career Highlights

Kieper's career has been marked by his association with Nibco Incorporated, a leading company in the plumbing manufacturing sector. His innovative spirit has not only propelled his own career but has also made a substantial impact in the plumbing industry. His inventions reflect a deep understanding of practical applications and user needs, helping to advance plumbing technology.

Collaborations

Throughout his career, Kieper has collaborated with esteemed colleagues, including Stuart E Hayden and George H Hunt. These partnerships have likely played a vital role in his creative process, fostering an environment where innovative ideas can flourish.

Conclusion

Douglas A Kieper stands as a testament to the power of innovation within the plumbing industry. His numerous patents reflect his commitment to improving plumbing fittings and systems through clever design and engineering. As he continues to develop new solutions, Kieper's contributions will undoubtedly shape the future of plumbing technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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