Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ralph Main — 6 Patents

SESequa: 5 patents #4 of 36Top 15%
Rancho Palos Verdes, CA: #304 of 1,701 inventorsTop 20%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Ralph Main has been granted 6 US patents while listed as an inventor at Sequa. The first was granted in 1980 and the most recent in November 1997. Ralph Main ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Ralph Main in Rancho Palos Verdes, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5687605 Wiping unit for ram of bodymaker 1997-11-18
5626046 Lightweight ram for bodymaker 1997-05-06
5566567 Rotary cup infeed 1996-10-22
5492000 Rotary valve controlled apparatus for stripping cans from bodymaking ram 1996-02-20
5208435 Lightweight ram for bodymaker Rodney A. Blue 1993-05-04
4223544 Die lubricant nozzle for use in can bodymakers and the like 1980-09-23 $100,000