{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "IBM", "item": "https://www.patentleaderboard.com/company/ibm"}, {"@type": "ListItem", "position": 3, "name": "David Leaver", "item": "https://www.patentleaderboard.com/inventor/fl:da_ln:leaver-3"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DL

David Leaver — 6 Patents

IBM: 6 patents #16,491 of 70,183Top 25%
Hassocks, GB: #2 of 7 inventorsTop 30%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David Leaver has been granted 6 US patents while listed as an inventor at IBM. The first was granted in 1995 and the most recent in March 1998. David Leaver ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David Leaver in Hassocks, GB.

Patents per Year

Patents granted per year, 1995 to 1998Bar chart with a peak of 2 patents in 1995.peak 21995: 2 patents19951996: 2 patents19961997: 1 patents19971998: 1 patents1998

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5726538 Cathode ray tube display with cancellation of electric field emissions Frederick S. Jackson, Andrew Knox, John Beeteson 1998-03-10 $20,586,000
5644197 Cathode ray tube display apparatus with rotatable raster 1997-07-01 $13,721,000
5544202 Synchronization apparatus Frederick S. Jackson, Michael David Henry, Neil Wright-Boulton 1996-08-06 $6,901,000
5495616 Processor system with interrupt discrimination Michael David Henry, Neil Wright-Boulton, Mark W. Hare, Frederick S. Jackson 1996-02-27 $14,946,000
5469029 Deflection apparatus for raster scanned CRT displays Frederick S. Jackson 1995-11-21 $10,808,000
5466993 Deflection apparatus for raster scanned CRT displays 1995-11-14 $11,832,000