Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert William Koss — 4 Patents

IBM: 4 patents #21,783 of 70,183Top 35%
Burlington, VT: #135 of 475 inventorsTop 30%
Vermont: #1,423 of 4,968 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert William Koss has been granted 4 US patents while listed as an inventor at IBM. The first was granted in 1995 and the most recent in February 2002. Robert William Koss ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert William Koss in Burlington, VT, US.

Patents per Year

Patents granted per year, 1995 to 2002Bar chart with a peak of 1 patents in 1995.peak 11995: 1 patents19951997: 1 patents19971999: 1 patents19992002: 1 patents2002

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6351134 Semiconductor wafer test and burn-in James M. Leas, Jody Van Horn, George F. Walker, Charles H. Perry, David L. Gardell +2 more 2002-02-26 $30,939,000
5929651 Semiconductor wafer test and burn-in James M. Leas, Jody Van Horn, George F. Walker, Charles H. Perry, David L. Gardell +2 more 1999-07-27 $22,178,000
5600257 Semiconductor wafer test and burn-in James M. Leas, George F. Walker, Charles H. Perry, Jody Van Horn 1997-02-04 $17,712,000
5419708 Printed circuit card with minor surface I/O pads Francis J. Thornton 1995-05-30 $7,059,000