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

David A. Baldwin — 22 Patents

4W4Wave: 13 patents #1 of 5Top 20%
KRKaufman & Robinson: 3 patents #6 of 13Top 50%
VIVeeco Instruments: 3 patents #71 of 323Top 25%
CSCommonwealth Scientific: 1 patents #3 of 22Top 15%
CPCvc Products: 1 patents #23 of 31Top 75%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
David A. Baldwin has been granted 22 US patents while listed as an inventor at 4Wave. The first was granted in 1986 and the most recent in December 2012. David A. Baldwin ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list David A. Baldwin in Woking, VA, GB.

Patents per Year

Patents granted per year, 1986 to 2012Bar chart with a peak of 9 patents in 2002.peak 91986: 1 patents19861997: 1 patents19972002: 9 patents20022003: 1 patents20032004: 5 patents20042005: 2 patents20052007: 1 patents20072008: 1 patents20082012: 1 patents2012

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8329002 Thin films and methods and machines for forming the thin films Anthony Githinji, Sami C. Antrazi 2012-12-11
7316764 System and method for performing sputter etching using independent ion and electron sources and a substrate biased with an a-symmetric bi-polar DC pulse signal Todd Hylton 2008-01-08
7177506 Method for forming an aligned optical sub-assembly Michael Joseph Minnemann 2007-02-13
6870164 Pulsed operation of hall-current ion sources Boris Ciorneiu, Harold R. Kaufman 2005-03-22 $4,319,000
6843891 Apparatus for sputter deposition James R. Kahn, Harold R. Kaufman, Viacheslav V. Zhurin, Todd Hylton 2005-01-18 $5,450,000
6819871 Multi-channel optical filter and multiplexer formed from stacks of thin-film layers Todd Hylton 2004-11-16
6723209 System and method for performing thin film deposition or chemical treatment using an energetic flux of neutral reactive molecular fragments, atoms or radicals Todd Hylton 2004-04-20
6689255 System and method for making thin-film structures using a stepped profile mask Todd Hylton 2004-02-10
6682634 Apparatus for sputter deposition James R. Kahn, Harold R. Kaufman, Viacheslav V. Zhurin, Todd Hylton 2004-01-27 $8,192,000
6679976 System and method for performing sputter deposition with multiple targets using independent ion and electron sources and independent target biasing with DC pulse signals Todd Hylton 2004-01-20
6610179 System and method for controlling deposition thickness using a mask with a shadow that varies with respect to a target Todd Hylton 2003-08-26
6488821 System and method for performing sputter deposition using a divergent ion beam source and a rotating substrate Todd Hylton 2002-12-03
6419803 System and method for making thin-film structures using a stepped profile mask Todd Hylton 2002-07-16
6419802 System and method for controlling deposition thickness by synchronously varying a sputtering rate of a target with respect to a position of a rotating substrate Todd Hylton 2002-07-16
6402901 System and method for performing sputter deposition using a spherical geometry Todd Hylton 2002-06-11
6402905 System and method for controlling deposition thickness using a mask with a shadow that varies along a radius of a substrate Todd Hylton 2002-06-11
6402904 System and method for performing sputter deposition using independent ion and electron sources and a target biased with an a-symmetric bi-polar DC pulse signal Todd Hylton 2002-06-11
6402900 System and method for performing sputter deposition using ion sources, targets and a substrate arranged about the faces of a cube Todd Hylton 2002-06-11
6373364 Electromagnet for thin-film processing with winding pattern for reducing skew Jeong Woo SON 2002-04-16
D452866 Electronics cabinet face Syed S. Towheed 2002-01-08
5616179 Process for deposition of diamondlike, electrically conductive and electron-emissive carbon-based films Stephen Michel 1997-04-01
4617836 Transmission systems for tracked vehicles 1986-10-21