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

David E. Schweikert — 12 Patents

WBWestinghouse Air Brake: 12 patents #55 of 671Top 9%
Moore, SC: #12 of 114 inventorsTop 15%
South Carolina: #1,202 of 15,501 inventorsTop 8%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
David E. Schweikert has been granted 12 US patents. The first was granted in 1998 and the most recent in February 2010. David E. Schweikert ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list David E. Schweikert in Moore, SC, US.

Patents per Year

Patents granted per year, 1998 to 2010Bar chart with a peak of 2 patents in 1998.peak 21998: 2 patents19981999: 2 patents19992004: 2 patents20042005: 2 patents20052006: 1 patents20062008: 1 patents20082009: 1 patents20092010: 1 patents2010

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7661770 Pneumatic emergency brake assurance module James A. Wood, Robert N. Scharpf 2010-02-16 $14,638,000
7520574 Pneumatic emergency brake release timer Robert N. Scharpf, James A. Wood 2009-04-21 $19,615,000
7374252 Wheel slip brake assurance module Robert N. Scharpf, James A. Wood 2008-05-20 $14,335,000
7133796 Smart resolution valve pressure control James A. Wood 2006-11-07 $13,692,000
6901341 Smart resolution valve pressure control James A. Wood 2005-05-31 $6,920,000
6847869 Software based brake shoe wear determination James T. Dewberry, Robert N. Scharpf 2005-01-25 $5,215,000
6799132 Smart resolution valve pressure control James A. Wood 2004-09-28 $5,314,000
6739675 Brake effort monitor Robert N. Scharpf, James T. Dewberry 2004-05-25 $2,176,000
5975656 Universal wheel slip force control logic James A. Wood 1999-11-02 $1,534,000
5961564 Wheel slip control parameter variation process James A. Wood 1999-10-05 $2,059,000
5790427 Event history data acquisition David A. Greer 1998-08-04 $701,000
5740043 Relative spin speed traction control James A. Wood, David A. Greer 1998-04-14 $908,000