SL

Stephen Arthur Langrell

NO Northquip: 11 patents #1 of 2Top 50%
📍 Woodlands, CA: #1 of 5 inventorsTop 20%
Overall (All Time): #437,336 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12349661 Portable livestock corral with dual and single alley modes of operation, bud box capability, and transport safety bar 2025-07-08
12336500 Livestock chute with both parallel and V-squeeze capability, a pull-up neck extender and a robust head gate track Philip Malcolm Firth 2025-06-24
D1047228 Perforated gate panel for a livestock gate 2024-10-15
12075749 Modular livestock alley construction and strategic cladding of livestock handling equipment to optimize livestock flow therethrough 2024-09-03
11445698 Livestock chute with both parallel and V-squeeze capability, a pull-up neck extender and a robust head gate track Philip Malcolm Firth 2022-09-20
D957749 Livestock handling apparatus 2022-07-12
11317597 Livestock force tub with supplemental wall section, auxiliary space and reduced opacity exit-adjacent wall sections Philip Malcolm Firth 2022-05-03
D943767 Livestock head gate Philip Malcolm Firth 2022-02-15
11129355 Portable livestock handling apparatus with foldable force tub and extendable/collapsible chassis Philip Malcolm Firth 2021-09-28
D881676 Slam latch for a gate Philip Malcolm Firth 2020-04-21
9936673 Locking device for a livestock head gate 2018-04-10