Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Spears — 2 Patents

BPB&S Plastics: 2 patents #8 of 19Top 45%
Calabasas, CA: #1,520 of 4,119 inventorsTop 40%
California: #187,151 of 386,348 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert Spears has been granted 2 US patents while listed as an inventor at B&S Plastics. The first was granted in 1993 and the most recent in August 1997. Robert Spears ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert Spears in Calabasas, CA, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5657496 Two-axis rotating hydrotherapy jet with adjustable nozzle orientations Richard P. Corb, Eugene M. Gravatt 1997-08-19
5269029 Hydrotherapy jet with push-pull flow adjustment Francisco Hinojosa, Jr., Eugene M. Gravatt, Michael D. Holtsnider 1993-12-14