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

John Madocks — 25 Patents

GPGeneral Plasma: 12 patents #1 of 6Top 20%
ATApplied Process Technologies: 8 patents #1 of 1Top 100%
TLThe Boc Group Limited: 2 patents #207 of 612Top 35%
CCCardinal Cg: 1 patents #21 of 43Top 50%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Ashfield, MA: #1 of 10 inventorsTop 10%
Massachusetts: #4,179 of 88,656 inventorsTop 5%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
John Madocks has been granted 25 US patents while listed as an inventor at General Plasma. The first was granted in 1988 and the most recent in August 2021. John Madocks ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list John Madocks in Ashfield, MA, US.

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
11092245 Chamber valve 2021-08-17
10989343 Push-to-connect and pull-to-disconnect quick coupling 2021-04-27
10811236 Magnetic anode for sputter magnetron cathode Phong Ngo 2020-10-20
10657932 Tuning device for stringed musical instrument 2020-05-19
10273570 Rotary magnetron magnet bar and apparatus containing the same for high target utilization Patrick Lawrence Morse, Phong Ngo 2019-04-30
10134557 Linear anode layer slit ion source 2018-11-20
9388490 Rotary magnetron magnet bar and apparatus containing the same for high target utilization Patrick Lawrence Morse, Phong Ngo 2016-07-12
9136086 Closed drift magnetic field ion source apparatus containing self-cleaning anode and a process for substrate modification therewith 2015-09-15
9103018 Sputtering target temperature control utilizing layers having predetermined emissivity coefficients Mark George 2015-08-11
8535490 Rotatable magnetron sputtering with axially movable target electrode tube Patrick Lawrence Morse 2013-09-17
8304744 Closed drift ion source 2012-11-06
7993496 Cylindrical target with oscillating magnet for magnetron sputtering Klaus Hartig, Steve E. Smith 2011-08-09
7932678 Magnetic mirror plasma source and method using same 2011-04-26
7411352 Dual plasma beam sources and method 2008-08-12
7327089 Beam plasma source 2008-02-05
7294283 Penning discharge plasma source 2007-11-13
7259378 Closed drift ion source 2007-08-21
7038389 Magnetron plasma source 2006-05-02
7025833 Apparatus and method for web cooling in a vacuum coating chamber 2006-04-11
7023128 Dipole ion source 2006-04-04
6919672 Closed drift ion source 2005-07-19
6911779 Magnetic mirror plasma source 2005-06-28
4949927 Articulable column Thomas M. Young 1990-08-21
4850806 Controlled by-pass for a booster pump Steven V. Morgan 1989-07-25
4753417 Gate valve for vacuum processing apparatus Alex Boozenny 1988-06-28