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David Janszen — 3 Patents

KEKnox Security Engineering: 2 patents #3 of 7Top 45%
Medford, MA: #359 of 941 inventorsTop 40%
Massachusetts: #33,867 of 88,656 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David Janszen has been granted 3 US patents while listed as an inventor at Knox Security Engineering. The first was granted in 1992 and the most recent in March 2001. David Janszen ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David Janszen in Medford, MA, US.

Patents per Year

Patents granted per year, 1992 to 2001Bar chart with a peak of 1 patents in 1992.peak 11992: 1 patents19921998: 1 patents19982001: 1 patents2001

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6200250 Diapers with moisture detection and process and apparatus for making them — 2001-03-13
5760694 Moisture detecting devices such as for diapers and diapers having such devices Ofer Nissim, Donald B. Ellingham 1998-06-02
5113867 Fluid flow characterizing — 1992-05-19

Frequent Collaborators

Ofer Nissim1 shared
Donald B. Ellingham1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3