{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "IBM", "item": "https://www.patentleaderboard.com/company/ibm"}, {"@type": "ListItem", "position": 3, "name": "Daniel E. Skooglund", "item": "https://www.patentleaderboard.com/inventor/fl:da_ln:skooglund-1"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DS

Daniel E. Skooglund — 4 Patents

IBM: 4 patents #21,783 of 70,183Top 35%
Beacon, NY: #97 of 281 inventorsTop 35%
New York: #31,814 of 115,490 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Daniel E. Skooglund has been granted 4 US patents while listed as an inventor at IBM. The first was granted in 1988 and the most recent in August 1997. Daniel E. Skooglund ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Daniel E. Skooglund in Beacon, NY, US.

Patents per Year

Patents granted per year, 1988 to 1997Bar chart with a peak of 1 patents in 1988.peak 11988: 1 patents19881991: 1 patents19911992: 1 patents19921997: 1 patents1997

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5661395 Active, low Vsd, field effect transistor current source David K. Johnson, Michael A. Sorna 1997-08-26 $35,141,000
5097144 Driver circuit for testing bi-directional transceiver semiconductor products Albert Chang, Algirdas J. Gruodis, Dale E. Hoffman 1992-03-17 $18,922,000
5013944 Programmable delay line utilizing measured actual delays to provide a highly accurate delay Jeffrey Herbert Fischer, Lawrence J. Grasso, Dale E. Hoffman, Diane K. Young 1991-05-07 $22,644,000
4779270 Apparatus for reducing and maintaining constant overshoot in a high speed driver Algirdas J. Gruodis, Dale E. Hoffman, Charles A. Puntar 1988-10-18 $38,012,000