Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JR

John Ruffell — 10 Patents

Applied Materials: 5 patents #2,184 of 7,310Top 30%
BHBell And Howell: 1 patents #131 of 293Top 45%
EAEaton: 1 patents #1,900 of 3,708Top 55%
ITIbis Technology: 1 patents #17 of 25Top 70%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
John Ruffell has been granted 10 US patents while listed as an inventor at Applied Materials. The first was granted in 1981 and the most recent in July 2013. John Ruffell ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list John Ruffell in Auckland, MA, NZ.

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8481959 Apparatus and method for multi-directionally scanning a beam of charged particles 2013-07-09
8399851 Systems and methods for scanning a beam of charged particles 2013-03-19
6679675 Method and apparatus for processing wafers Robert J. Mitchell, Keith Relleen 2004-01-20 $55,713,000
6555832 Determining beam alignment in ion implantation using Rutherford Back Scattering Geoffrey Ryding, Theodore H. Smick, Marvin Farley, Peter Rose 2003-04-29 $17,791,000
6525327 Ion implanter and beam stop therefor Robert J. Mitchell, Michael T. Wauk, II, Hilton F. Glavish, Peter Kindersley 2003-02-25 $21,067,000
6350097 Method and apparatus for processing wafers Robert J. Mitchell, Keith Relleen 2002-02-26 $53,340,000
6179921 Backside gas delivery system for a semiconductor wafer processing system Karl Leeser 2001-01-30 $60,467,000
5053627 Apparatus for ion implantation Michael Guerra 1991-10-01
4812663 Calorimetric dose monitor for ion implantation equipment D. H. Douglas-Hamilton 1989-03-14 $1,684,000
4307406 Multistyli recording systems 1981-12-22 $841,000