{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "Lockheed Martin", "item": "https://www.patentleaderboard.com/company/lockheed"}, {"@type": "ListItem", "position": 3, "name": "Mark A. Cantrell", "item": "https://www.patentleaderboard.com/inventor/fl:ma_ln:cantrell-3"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
MC

Mark A. Cantrell — 8 Patents

Lockheed Martin: 4 patents #788 of 6,507Top 15%
RMReynolds Metals: 1 patents #210 of 329Top 65%
Walla Walla, WA: #17 of 148 inventorsTop 15%
Washington: #13,119 of 76,902 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Mark A. Cantrell has been granted 8 US patents while listed as an inventor at Lockheed Martin. The first was granted in 1981 and the most recent in April 2005. Mark A. Cantrell ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Mark A. Cantrell in Walla Walla, WA, US.

Patents per Year

Patents granted per year, 1981 to 2005Bar chart with a peak of 2 patents in 2001.peak 21981: 1 patents19811982: 1 patents19821998: 1 patents19982001: 2 patents20012002: 2 patents20022005: 1 patents2005

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6880743 Friction pull plug welding: chamfered heat sink pull plug design Edmond R. Coletta 2005-04-19 $9,934,000
6460750 Friction pull plug welding: chamfered heat sink pull plug design Edmond R. Coletta 2002-10-08
6386419 Friction pull plug welding: top hat plug design Edmond R. Coletta 2002-05-14 $16,450,000
6253987 Friction pull plug welding: top hat plug design Edmond R. Coletta 2001-07-03 $14,479,000
6230958 Friction pull plug welding: dual chamfered plate hole Edmond R. Coletta 2001-05-15 $20,880,000
5785777 Method of making an AA7000 series aluminum wrought product having a modified solution heat treating process for improved exfoliation corrosion resistance Kevin R. Anderson, Kim Herbert Archibald 1998-07-28 $10,010,000
4350252 Display rack Grant Hopkins 1982-09-21
4279429 Vehicle with adjustable steering axis angle control Grant Hopkins 1981-07-21