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

David C. Ulstad — 6 Patents

Abbott: 6 patents #1,146 of 5,509Top 25%
Dublin, OH: #213 of 1,143 inventorsTop 20%
Ohio: #13,600 of 73,341 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David C. Ulstad has been granted 6 US patents while listed as an inventor at Abbott. The first was granted in 1999 and the most recent in March 2017. David C. Ulstad ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David C. Ulstad in Dublin, OH, US.

Patents per Year

Patents granted per year, 1999 to 2017Bar chart with a peak of 2 patents in 2000.peak 21999: 1 patents19992000: 2 patents20002001: 1 patents20012015: 1 patents20152017: 1 patents2017

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9606018 Device for detecting leaks in packages Kenneth William Botterbrodt 2017-03-28 $31,854,000
D724440 Pouch Robert Miller, Terrence B. Mazer, Wilson George Zeitler 2015-03-17
6286705 Container having tapered sidewall made from sheet material and lid to seal same Lori J. Mihalov, Lewis H. Sita, Todd A. Stevens, W. George Zeitler 2001-09-11
6091054 Heater plate and method for using same Lori J. Mihalov, Lewis H. Sita, Todd A. Stevens, W. George Zeitler 2000-07-18 $639,196,000
6070507 Method for punching a sealed package from first and second webs Lori J. Mihalov, Lewis H. Sita, Todd A. Stevens, W. George Zeitler 2000-06-06 $123,453,000
5983607 Heat sealer and method for using same Lori J. Mihalov, Lewis H. Sita, Todd A. Stevens, W. George Zeitler 1999-11-16 $74,746,000