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

David Alexander — 3 Patents

TETownsend Engineering: 2 patents #25 of 77Top 35%
Indianapolis, IN: #1,715 of 5,011 inventorsTop 35%
Indiana: #10,705 of 33,936 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David Alexander has been granted 3 US patents while listed as an inventor at Townsend Engineering. The first was granted in 1990 and the most recent in November 2000. David Alexander ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David Alexander in Indianapolis, IN, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6153234 Brine coated sausage strand Jaap Kobussen, Mart Kobussen, Jos Kobussen 2000-11-28
6054155 Brine formulation for curing extruded sausage strand Jaap Kobussen, Mart Kobussen, Jos Kobussen 2000-04-25
4944155 Vacuum separator for dewar flask cold exchange systems 1990-07-31