Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Joan M. Gluth — 1 Patent

BLBendix Limited: 1 patents #237 of 548Top 45%
Davenport, IA: #196 of 349 inventorsTop 60%
Iowa: #8,818 of 15,303 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Joan M. Gluth has been granted 1 US patent while listed as an inventor at Bendix Limited. All of these patents were granted in 1981. Joan M. Gluth ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Joan M. Gluth in Davenport, IA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4307729 Optical digitizer for measuring spirometer output Russell F. Hart, Gerald A. Brumm 1981-12-29 $3,069,000