Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RS

Robert S. Simpson — 8 Patents

Coshocton, OH: #5 of 55 inventorsTop 10%
Ohio: #10,270 of 73,341 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Robert S. Simpson has been granted 8 US patents. The first was granted in 1981 and the most recent in May 2016. Robert S. Simpson ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Robert S. Simpson in Coshocton, OH, US.

Patents per Year

Patents granted per year, 1981 to 2016Bar chart with a peak of 2 patents in 1992.peak 21981: 1 patents19811990: 1 patents19901992: 2 patents19922002: 1 patents20022003: 1 patents20032013: 1 patents20132016: 1 patents2016

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9347215 Flashing and waterproofing membrane Michael L. Wright, Whitney J. Croft 2016-05-24
8603629 Flashing and waterproofing membrane Michael L. Wright, Whitney J. Croft 2013-12-10
6627017 Self-adhesive laminate for sealing window frames and method of sealing window frames 2003-09-30
6479119 Self-adhesive laminate for sealing window frames and method of sealing window frames 2002-11-12
5142837 Roof structure Robert E. Simpson 1992-09-01
5096759 Laminated roofing sheet Robert E. Simpson 1992-03-17
4936938 Process of making roofing material Robert E. Simpson 1990-06-26
4264993 Method for space dyeing yarn Danny M. Freeman, Milton M. Knight, Jr., Clarence M. Payton, Howard B. Smith, Jr. 1981-05-05