{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Corning Incorporated", "item": "https://www.patentleaderboard.com/company/corning-incorporated"}, {"@type": "ListItem", "position": 3, "name": "Floyd E. Stumpff", "item": "https://www.patentleaderboard.com/inventor/fl:fl_ln:stumpff-1"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
FS

Floyd E. Stumpff — 5 Patents

CICorning Incorporated: 5 patents #1,102 of 3,890Top 30%
Elmira, NY: #72 of 229 inventorsTop 35%
New York: #27,005 of 115,490 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Floyd E. Stumpff has been granted 5 US patents while listed as an inventor at Corning Incorporated. The first was granted in 1993 and the most recent in October 1999. Floyd E. Stumpff ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Floyd E. Stumpff in Elmira, NY, US.

Patents per Year

Patents granted per year, 1993 to 1999Bar chart with a peak of 2 patents in 1993.peak 21993: 2 patents19931997: 1 patents19971998: 1 patents19981999: 1 patents1999

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5964020 Bonded pin extrusion die and method Harry A. Kragle 1999-10-12 $25,046,000
5761787 Method of making bonded pin extrusion die Harry A. Kragle 1998-06-09 $15,551,000
5702659 Honeycomb extrusion die and methods Harry A. Kragle, David Robertson Treacy, Jr. 1997-12-30 $15,986,000
5256054 Method and apparatus for forming a uniform skin on a cellular substrate Joseph F. Cocchetto, Harry A. Kragle 1993-10-26 $4,304,000
5219509 Method for forming a uniform skin on a cellular substrate Joseph F. Cocchetto, Harry A. Kragle 1993-06-15 $9,598,000