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

Keith Gray — 9 Patents

DPDelorme Publishing: 5 patents #1 of 14Top 8%
VSVarian Medical Systems: 1 patents #411 of 538Top 80%
Villa Park, IL: #26 of 246 inventorsTop 15%
Illinois: #10,163 of 84,256 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Keith Gray has been granted 9 US patents while listed as an inventor at Delorme Publishing. The first was granted in 1993 and the most recent in December 2006. Keith Gray ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Keith Gray in Villa Park, IL, US.

Patents per Year

Patents granted per year, 1993 to 2006Bar chart with a peak of 2 patents in 1998.peak 21993: 1 patents19931995: 1 patents19951996: 1 patents19961998: 2 patents19981999: 1 patents19992001: 1 patents20012002: 1 patents20022006: 1 patents2006

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7154994 Synchronization of x-ray data acquisition 2006-12-26 $38,866,000
6412157 Device for displacing tubular elements relative to one another 2002-07-02
6321158 Integrated routing/mapping information David M. DeLorme, Gordon Autry, Keith A. Moulton 2001-11-20
5948040 Travel reservation information and planning system David M. DeLorme, T. Angus Ferguson 1999-09-07
5848373 Computer aided map location system David M. DeLorme 1998-12-08
5802492 Computer aided routing and positioning system David M. DeLorme 1998-09-01
5559707 Computer aided routing system David M. DeLorme 1996-09-24
5413005 Sample collector for fog-containing wastewater 1995-05-09
5186052 Storm water flow monitoring 1993-02-16