Steven David Hartman

This inventor holds 15 USPTO granted patents, plus 2 CIPO patents. Top assignees: Industrial Thermo Polymers Limited, Industrial Thermo Ploymers Limited. Active years: 1994-2005.

USPTO Granted Patents = 15

% Patents Active = 93.3

CIPO Patents = 2

Average Co-Inventor Count = 1.4

ph-index = 5

Forward Citations = 65(Granted Patents)

Location History:

Brampton, CA (2003)
Erin, CA (1994 - 2005)

Company Filing History:

14 out of 19

Industrial Thermo Polymers Limited

patents

1 out of 1

Industrial Thermo Ploymers Limited

patent

Years Active: 1994-2005

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6942376 - Extruder mixing (2005-09-13),

2. 6576174 - Residual gas extraction process (2003-06-10),

3. 6544448 - Two-part coated foam structure (2003-04-08),

4. 6533974 - Method of forming a profile on a foam rod (2003-03-18),

5. 6530603 - Self-covering element (2003-03-11),

6. 6497919 - Two-part coated foam structure (2002-12-24),

7. 6312630 - Method of forming a two-part coated foam structure (2001-11-06),

8. 6183673 - Method for forming extruded foam with surface coating (2001-02-06),

9. 6085394 - Coupler (2000-07-11),

10. 5897409 - Floatable lounger with rotating headrest (1999-04-27),

11. D385591 - Play structure (1997-10-28),

12. D377813 - Playhouse (1997-02-04),

13. 5419859 - Method of forming pipe insulation with an adhesive closure (1995-05-30),

14. 5417901 - Method of forming pipe insulation with prestressed tape closure (1995-05-23),

15. 5276064 - Colored extruded foam cross-linked backer rod (1994-01-04),

Title: The Innovative Contributions of Steven David Hartman

Introduction

Steven David Hartman is a notable inventor based in Erin, California. He has made significant contributions to the field of thermoplastic materials, holding a total of 15 patents. His work focuses on enhancing the efficiency and effectiveness of polymer processing technologies.

Latest Patents

Among his latest patents is the "Extruder Mixing," which describes an advanced extruder designed for producing thermoplastic materials. This invention features a unique configuration of an axially extending barrel and two co-axially disposed screw conveyers. The design allows for the effective conveyance of thermoplastic material from an input to a melt zone and subsequently to an output. Another significant patent is the "Residual Gas Extraction Process," which outlines a method and apparatus for reducing residual gases from foamed polymer materials by applying a vacuum. These innovations reflect Hartman's commitment to improving polymer processing techniques.

Career Highlights

Throughout his career, Steven David Hartman has worked with various companies, including Industrial Thermo Polymers Limited. His experience in these organizations has contributed to his expertise in thermoplastic materials and polymer processing.

Collaborations

Steven has collaborated with notable individuals in his field, including David Hartman and Hermann David Hartman. These partnerships have likely enriched his work and led to further advancements in his inventions.

Conclusion

Steven David Hartman is a distinguished inventor whose contributions to thermoplastic materials and polymer processing are noteworthy. His innovative patents and career achievements highlight his impact on the industry.