Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert H. McIntosh — 7 Patents

IRInterface Research: 6 patents #1 of 1Top 100%
INInterface: 1 patents #58 of 97Top 60%
Greensboro, NC: #210 of 1,557 inventorsTop 15%
North Carolina: #7,540 of 45,564 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Robert H. McIntosh has been granted 7 US patents while listed as an inventor at Interface Research. The first was granted in 1986 and the most recent in July 1992. Robert H. McIntosh ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Robert H. McIntosh in Greensboro, NC, US.

Patents per Year

Patents granted per year, 1986 to 1992Bar chart with a peak of 2 patents in 1990.peak 21986: 1 patents19861987: 1 patents19871988: 1 patents19881990: 2 patents19901991: 1 patents19911992: 1 patents1992

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5133933 Microbiocidal preservative 1992-07-28
4996052 Microbiocidal fabric having phosphate derivatives and method of preparation thereof 1991-02-26
4935232 Microbiocidal composition and method of preparation thereof 1990-06-19
4908209 Biocidal delivery system of phosphate ester and method of preparation thereof Albin F. Turbak, Robert H. McIntosh, Sr. 1990-03-13 $1,566,000
4753749 Microbiocidal cleaning agent and preparation thereof 1988-06-28
4647601 Self-sanitizing epoxy resins and preparation thereof 1987-03-03
4608289 Carpet containing sanitizing compounds and methods 1986-08-26