David B Spencer

USPTO Granted Patents = 23 (Patent Applications = 4)

Average Co-Inventor Count = 2.7

ph-index = 16

Forward Citations = 764(Granted Patents)

Location History:

Walled Lake, MI (US) (2010)
Bedford, MA (US) (1976 - 2018)
Commerce, MI (US) (2015 - 2019)
Plano, TX (US) (2019)

Company Filing History:

Massachusetts Institute of Technology

5. 4 out of 832,812

Other

patents

where one patent can have more than one assignee

Years Active: 1976-2019

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23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D864423 - Insert strip for shingled roofs (2019-10-22),

2. D851288 - Insert for roof shingle or tile (2019-06-11),

3. D839019 - Organizer (2019-01-29),

4. 9956609 - Metal sorting, melting and fabrication apparatus and methods (2018-05-01),

5. 9499988 - Shingle inserts and method for eliminating and preventing growth of algae, moss, or lichens on a roof (2016-11-22),

6. 9103124 - Shingle inserts and method for eliminating and preventing growth of algae, moss, or lichens on a roof (2015-08-11),

7. 8861675 - Method and apparatus for sorting materials according to relative composition (2014-10-14),

8. 8855809 - Material sorting technology (2014-10-07),

9. 8553838 - High speed materials sorting using X-ray fluorescence (2013-10-08),

10. 8476545 - Sorting pieces of material based on photonic emissions resulting from multiple sources of stimuli (2013-07-02),

11. 8144831 - Method and apparatus for sorting materials according to relative composition (2012-03-27),

12. 7978814 - High speed materials sorting using X-ray fluorescence (2011-07-12),

13. 7848484 - Method and apparatus for sorting materials according to relative composition (2010-12-07),

14. 7788870 - Method and roofing strip for retarding moss, fungi, and algae growth on roofs (2010-09-07),

15. 7763820 - Sorting pieces of material based on photonic emissions resulting from multiple sources of stimuli (2010-07-27),

Title: David B Spencer – Innovator in Roofing Solutions

Introduction

David B Spencer, based in Bedford, MA, is an accomplished inventor with a prolific portfolio of 23 patents. His contributions have significantly impacted the construction industry, particularly in roofing solutions.

Latest Patents

Among his latest innovations are two notable patents: the "Insert Strip for Shingled Roofs" and the "Insert for Roof Shingle or Tile". These inventions showcase his commitment to enhancing the durability and efficiency of roofing materials.

Career Highlights

Throughout his career, David has been associated with Spectramet, LLC, where he honed his skills in developing innovative solutions. His work has played a vital role in advancing roofing technology, establishing him as a key figure in his field.

Collaborations

David has collaborated with notable colleagues such as Edward J Sommer, Jr and Charles E Roos. Together, they have worked on various projects that have furthered advancements in the roofing sector.

Conclusion

David B Spencer's contributions to the field of roofing technology are significant, as evidenced by his numerous patents. His ongoing efforts to innovate continue to inspire others within the industry, ensuring a legacy of advancement in roofing solutions.

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4 patents pending:

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