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

John J. Douglas — 8 Patents

SESimplimatic Engineering: 4 patents #5 of 48Top 15%
DHDanville Automation Holdings: 1 patents #2 of 7Top 30%
JOJohnson Outdoors: 1 patents #65 of 117Top 60%
Williamsburg, VA: #52 of 341 inventorsTop 20%
Virginia: #3,883 of 34,511 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
John J. Douglas has been granted 8 US patents while listed as an inventor at Simplimatic Engineering. The first was granted in 1992 and the most recent in March 2019. John J. Douglas ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list John J. Douglas in Williamsburg, VA, US.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10239544 Guided delivery vehicle Daniel R. DeMartine 2019-03-26
7926771 Mounting apparatus for mounting objects to support structures of a tent Daniel R. DeMartine 2011-04-19 $1,549,000
6250454 Storage buffer for a multi lane conveyor 2001-06-26
6073748 Multiple lane inverter 2000-06-13
5259495 Belt tensioner and turnover device for a printed circuit board belt conveyor 1993-11-09
5246097 Line changing system for air bottle conveyors Byron A. McCoy 1993-09-21
5240104 Printed circuit board belt conveyor 1993-08-31
5082108 Modular conveyor beam and method of assembly therefor 1992-01-21