Bartlett, IL, United States of America

Douglas A Wielunski

This inventor holds 3 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignee: Plitek, LLC. Active years: 2014-2015.

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

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


% Patents Active = 100.0


 

Average Co-Inventor Count = 4.3

ph-index = 3

Forward Citations = 24(Granted Patents)


Location History:

  • Bartlett, IL (US) (2014)
  • Waterford, WI (US) (2015)

Company Filing History:


Years Active: 2014-2015

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3 patents (USPTO):Explore Patents

Title: Innovations of Douglas A. Wielunski

Introduction

Douglas A. Wielunski is an accomplished inventor based in Bartlett, Illinois. He has made significant contributions to the field of product packaging through his innovative designs. With a total of three patents to his name, Wielunski has demonstrated a commitment to advancing technology in practical applications.

Latest Patents

One of his notable inventions is the oil-less pressure relief valve. This self-contained one-way pressure relief valve is designed for product packaging and eliminates the need for a sealing lubricant. The valve features a base with an opening, topped with an adhesive-like material layer and a dry strap of silicone or other release film coated membrane, all made from gas impervious materials. The release film coated material layer covers the opening, creating a surface attraction between the release film and the adhesive-like material. Additionally, an intermediate layer of gas impervious material with an opening may be included, along with a gas pervious filter material layer to block the passage of fine particulates or liquid.

Career Highlights

Wielunski has worked with several companies throughout his career, including Plitek, LLC. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Throughout his career, Wielunski has collaborated with notable individuals such as Karl K. Hoffman and Keith P. Hoffman. These partnerships have likely enriched his work and led to further advancements in his inventions.

Conclusion

Douglas A. Wielunski's contributions to the field of product packaging through his innovative patents highlight his expertise and dedication as an inventor. His work continues to influence the industry and pave the way for future advancements.

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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