{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Apple", "item": "https://www.patentleaderboard.com/company/apple"}, {"@type": "ListItem", "position": 3, "name": "Robert Walton", "item": "https://www.patentleaderboard.com/inventor/fl:ro_ln:walton-9"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RW

Robert Walton — 6 Patents

Apple: 2 patents #9,294 of 18,612Top 50%
DDDentsply Research And Development: 1 patents #84 of 167Top 55%
LLLinx Printing Technologies Limited: 1 patents #8 of 17Top 50%
PLPowerbyproxi Limited: 1 patents #6 of 14Top 45%
WLWillett International Limited: 1 patents #11 of 17Top 65%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Robert Walton has been granted 6 US patents while listed as an inventor at Apple. The first was granted in 1990 and the most recent in January 2022. Robert Walton ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Robert Walton in Auckland, CA, NZ.

Patents per Year

Patents granted per year, 1990 to 2022Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19901991: 1 patents19912013: 1 patents20132017: 1 patents20172019: 1 patents20192022: 1 patents2022

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11228209 Wireless power transfer system and method 2022-01-18 $422,418,000
10355532 Inductive power transfer 2019-07-16 $90,112,000
9646763 Contactless power transfer system Daniel Robertson, Kunal Bhargava, Fady Mishriki, Saining Ren, Eugenio Sia Lecias, JR. 2017-05-09
8517485 Inkjet printer and flow restriction system therefor Henry Charles Heylen 2013-08-27
5040978 Dental prophy angle Charles J. Falcon, William C. Foster 1991-08-20 $944,000
4928111 Method for operating a valve 1990-05-22