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For the Inventor, By the Inventor

Bedford, MA, United States of America

David B Spencer

This inventor holds 23 USPTO granted patents and 4 published patent applications, primarily in Material Sorting Technology. Top assignees: Spectramet, LLC, Massachusetts Institute of Technology, Melt Cognition, LLC. Active years: 1976-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David B Spencer. Retrieved from https://idiyas.com/inventor/david-b-spencer

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

USPTO Granted Patents = 23 

% Patents Active = 60.9

Average Co-Inventor Count = 2.7

ph-index = 16

Forward Citations = 807(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:

goldMedal13 out of 13 
 
Spectramet, LLC
 patents
silverMedal2 out of 8,586 
 
Massachusetts Institute of Technology
 patents
bronzeMedal1 out of 1 
 
Melt Cognition, LLC
 patent
4. 1 out of 1 
 
Sprectramet, LLC
 patent
5. 4 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1976-2019

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Areas of Expertise:
Roofing Inserts
Material Sorting
Algae Prevention
X-Ray Fluorescence
Liquid-Solid Alloys
Fabrication Methods
Photonic Emissions
Melting Techniques
Shingle Solutions
High Speed Sorting
Roof Maintenance
Sorting Apparatus
23 patents (USPTO):Explore 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.

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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