Dennis G Welygan

This inventor holds 40 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 4 EPO patents, primarily in Abrasive Technology. Top assignee: 3M Innovative Properties Company. Active years: 1986-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dennis G Welygan. Retrieved from https://idiyas.com/inventor/dennis-g-welygan

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

USPTO Granted Patents = 40 (Patent Applications = 1)

% Patents Active = 92.5

CIPO Patents = 1

EPO Patents = 4 (Patent Applications = 3)

Average Co-Inventor Count = 3.0

ph-index = 20

Forward Citations = 1,344(Granted Patents)

Location History:

Cottage Grove, MN (US) (1986)
Saint Paul, MN (US) (1987 - 1999)
Woodbury, MN (US) (1989 - 2017)

Company Filing History:

40 out of 22,398

3M Innovative Properties Company

patents

Years Active: 1986-2017

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Areas of Expertise:

Abrasive Particles

Composite Filaments

Orthopedic Casting

Screen Printing

Thermoplastic Elastomer

Mechanical Fasteners

High-Friction Blends

Abrasive Articles

Laser Method

Melt-Bondable Thermoplastic

Cellular Abrasive

40 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9657207 - Laser method for making shaped ceramic abrasive particles, shaped ceramic abrasive particles, and abrasive articles (2017-05-23),

2. 9150765 - Transfer assisted screen printing method of making shaped abrasive particles and the resulting shaped abrasive particles (2015-10-06),

3. 9073179 - Laser method for making shaped ceramic abrasive particles, shaped ceramic abrasive particles, and abrasive articles (2015-07-07),

4. 8480772 - Transfer assisted screen printing method of making shaped abrasive particles and the resulting shaped abrasive particles (2013-07-09),

5. 7553346 - Abrasive product (2009-06-30),

6. 7491251 - Method of making a structured abrasive article (2009-02-17),

7. 7384437 - Apparatus for making abrasive article (2008-06-10),

8. 7297170 - Method of using abrasive product (2007-11-20),

9. 7294158 - Abrasive product, method of making and using the same, and apparatus for making the same (2007-11-13),

10. 7044989 - Abrasive product, method of making and using the same, and apparatus for making the same (2006-05-16),

11. 6969412 - Abrasive product, method of making and using the same, and apparatus for making the same (2005-11-29),

12. 6833014 - Abrasive product, method of making and using the same, and apparatus for making the same (2004-12-21),

13. D482587 - Abrasive product (2003-11-26),

14. 6645263 - Cellular abrasive article (2003-11-11),

15. 6641627 - Abrasive articles (2003-11-04),

Title: Dennis G. Welygan: Innovator in Ceramic Abrasive Technologies

Introduction: Dennis G. Welygan, based in Woodbury, MN, is an accomplished inventor with an impressive portfolio of 40 patents in the field of ceramic abrasive technologies. His contributions to innovation have significantly advanced the manufacturing processes for abrasive materials, leading to enhanced performance and efficiency in various applications.

Latest Patents: Welygan's recent patents highlight his focus on advancing the production of shaped ceramic abrasive particles. Notably, one of his latest inventions is a laser method for making these shaped ceramic abrasive particles. This method involves cutting a layer of ceramic precursor material using a laser beam, which then forms shaped ceramic precursor particles. Subsequent thermal processing results in the final shaped ceramic abrasive particles. Additionally, he developed a transfer-assisted screen printing method that facilitates the creation of these shaped particles by applying differential pressure during the printing process. His research indicates that shaped abrasive particles made from lower viscosity sol gels show superior grinding performance compared to those made from higher viscosity sol gels.

Career Highlights: Throughout his career, Dennis has contributed to notable companies such as the Minnesota Mining and Manufacturing Company and 3M Innovative Properties Company. These positions have allowed him to apply his innovative ideas in practical settings, furthering the development of ceramic abrasive technologies.

Collaborations: Welygan has worked alongside prominent figures in the industry, including coworkers Louis S. Moren and Richard M. Pihl. Their collaborations have fostered a dynamic environment for research and innovation, making significant strides in the field.

Conclusion: Dennis G. Welygan's dedication to innovation in ceramic abrasive technologies, coupled with his notable patents and collaborations, underscores his role as a leading inventor. His advances not only enhance manufacturing processes but also contribute significantly to the overall effectiveness of abrasive materials used across various industries.

Profile summary based on public USPTO records.