Richard G Hansen

This inventor holds 58 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 19 EPO patents, primarily in Silicone Polymers (CPC class C08G). Top assignees: 3M Innovative Properties Company, Other. Active years: 1996-2021.

USPTO Granted Patents = 58 (Patent Applications = 2)

% Patents Active = 62.1

CIPO Patents = 2

EPO Patents = 19 (Patent Applications = 16)

Average Co-Inventor Count = 4.3

ph-index = 14

Forward Citations = 725(Granted Patents)

Forward Citations (Not Self Cited) = 588(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Saint Paul, MN (US) (1996 - 2000)
San Francisco, CA (US) (2007 - 2009)
Mahtomedi, MN (US) (1999 - 2021)

Company Filing History:

55 out of 22,366

3M Innovative Properties Company

patents

2 out of 834,411

Other

patents

where one patent can have more than one assignee

Years Active: 1996-2021

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Areas of Expertise:

Silicone Copolymers

Polyurethane Dispersions

Polydiorganosiloxane

Aerosol Compositions

Medical Articles

Adhesive Compositions

Cyclic Silazanes

Thermoplastic Films

Moisture-Curable Siloxanes

Perfluoropolyether

Reactive Modifiers

Polyamide Copolymers

58 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10941252 - Silicone copolymers, methods of making, and articles (2021-03-09),

2. 10351653 - Polyurethane-polyurea dispersions comprising hydrazine or hydrazide chain extenders (2019-07-16),

3. 10329384 - Silicone-polyether copolymers, adhesives and medical articles comprising same, and methods of making same (2019-06-25),

4. 10160864 - Polyurethane aerosol compositions, articles, and related methods (2018-12-25),

5. 9527965 - Polydiorganosiloxane polymide copolymers having organic soft segments (2016-12-27),

6. 9434821 - Polydiorganosiloxane polyoxamide copolymers (2016-09-06),

7. 9290684 - Polydiorganosiloxane polymide copolymers having organic soft segments (2016-03-22),

8. 9279035 - Copolymers with perfluoropolyether segment and multiple aminooxalylamino groups (2016-03-08),

9. 9206290 - Polydiorganosiloxane polyoxamide copolymers (2015-12-08),

10. 9018331 - Polydiorganosiloxane polyamide copolymers having organic soft segments (2015-04-28),

11. 8907120 - Perfluoropolyether-containing compounds with oxalylamino groups (2014-12-09),

12. 8907046 - Copolymers with perfluoropolyether segment and multiple aminooxalylamino groups (2014-12-09),

13. 8853323 - Polydiorganosiloxane polyoxamide copolymers (2014-10-07),

14. 8765881 - Methods of making polydiorganosiloxane polyoxamide copolymers (2014-07-01),

15. 8691391 - Adhesive compositions (2014-04-08),

Title: Richard G. Hansen: Pioneering Innovations in Silicone and Polyurethane Technology

Introduction: Richard G. Hansen, a prolific inventor based in Mahtomedi, MN, is known for his remarkable contributions to the field of polymer chemistry and material science. With an impressive portfolio of 55 patents, Hansen has been at the forefront of developing cutting-edge copolymer compositions and polyurethane dispersions.

Latest Patents: Among his recent patents is a groundbreaking invention involving Silicone Copolymers. This composition includes a unique blend of silicone, hydrophilic, and reinforcing segments, connected through specialized linkages. Additionally, Hansen has developed Polyurethane-Polyurea Dispersions comprising hydrazine or hydrazide chain extenders, adding to his diverse range of innovative solutions in polymer science.

Career Highlights: Hansen has made significant strides in his career, notably working with esteemed companies such as 3M Innovative Properties Company and Minnesota Mining and Manufacturing Company. His innovative mindset and technical expertise have led to the successful commercialization of several novel technologies in collaboration with leading industry players.

Collaborations: Throughout his career, Hansen has collaborated closely with talented individuals such as Audrey A. Sherman and Mark D. Purgett. Together, they have synergized their skills and knowledge to push the boundaries of material science and drive innovation in the polymer industry.

Conclusion: Richard G. Hansen's pioneering work in silicone and polyurethane technology underscores his status as a visionary inventor in the field of polymers. With a strong emphasis on research and development, Hansen continues to inspire new generations of innovators and cement his legacy as a trailblazer in the realm of material innovation.