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For the Inventor, By the Inventor

Plainfield, IN, United States of America

Robert C Coffin

USPTO Granted Patents = 6 

 

Average Co-Inventor Count = 4.3

ph-index = 1

Forward Citations = 8(Granted Patents)


Location History:

  • Zionsville, IN (US) (2020)
  • Zionsville, MN (US) (2022)
  • Plainfield, IN (US) (2021 - 2023)

Company Filing History:

goldMedal6 out of 14,076 
 
3m Innovative Properties Company
 patents

Years Active: 2020-2023

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6 patents (USPTO):Explore Patents
1. 11786408 - Push-in earplug and method of making the same using a mandrel (2023-10-17),
2. 11407872 - Foam compositions comprising polylactic acid polymer, polyvinyl acetate polymer and plasticizer, articles, and methods of making and using same (2022-08-09),
3. 11304851 - Push-to-fit earplug with tip cavity (2022-04-19),
4. 11076995 - Cold-drawn polyolefin copolymers cord for earplug (2021-08-03),
5. D895901 - Hearing protector (2020-09-08),
6. D889754 - Hearing protector (2020-07-07),
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