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

Edwin J. MacPherson — 9 Patents

FCFiberglas Canada: 8 patents #1 of 42Top 3%
UNUniroyal: 1 patents #69 of 180Top 40%
Elmira, CA: #8 of 56 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Edwin J. MacPherson has been granted 9 US patents while listed as an inventor at Fiberglas Canada. The first was granted in 1981 and the most recent in July 1990. Edwin J. MacPherson ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Edwin J. MacPherson in Elmira, ON, CA.

Patents per Year

Patents granted per year, 1981 to 1990Bar chart with a peak of 2 patents in 1985.peak 21981: 1 patents19811982: 1 patents19821984: 1 patents19841985: 2 patents19851986: 1 patents19861989: 2 patents19891990: 1 patents1990

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4945077 Modified phenolic foam catalysts and method Paul J. Meunier, James Lunt 1990-07-31
4883824 Modified phenolic foam catalysts and method Paul J. Meunier, James Lunt 1989-11-28
4882364 Process for manufacturing closed cell phenolic foams Teresa M. Kyle, Paul J. Meunier 1989-11-21
4576972 Closed cell phenolic foam James Lunt, Paul J. Meunier 1986-03-18
4546119 Closed cell phenolic foam James Lunt, Paul J. Meunier 1985-10-08
4525492 Modified phenolic foams Mary H. Rastall, Norman Ng 1985-06-25
4480068 High temperature resistant binders Ruben Santos, William G. Kipp 1984-10-30
4339361 Phenol-formaldehyde resins extended with carbohydrates for use in binder compositions Daniel Frenette 1982-07-13
4257517 Scraper bars for use with conveyor belting and the like Peter J. Alderson, Douglas A. Skinner 1981-03-24 $2,756,000