Douglas Walker — 9 Patents at Zephyr Lock

Douglas Walker has been granted 9 US patents while listed as an inventor at Zephyr Lock. The first was granted in 1999 and the most recent in September 2022. Douglas Walker ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Douglas Walker in Middlebury, CT, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
11434658	Lock with movable knob	Patrick E. Wind	2022-09-06
10619378	Lock with movable knob	Patrick E. Wind	2020-04-14
D837629	Lock	Stephen Cavanna, Douglas Greene, Kevin Houlihan, Nicolas Ivanoff, Adam Jonovski +4 more	2019-01-08
D837630	Lock	Stephen Cavanna, Douglas Greene, Kevin Houlihan, Nicolas Ivanoff, Adam Jonovski +4 more	2019-01-08
D837031	Lock	Stephen Cavanna, Douglas Greene, Kevin Houlihan, Nicolas Ivanoff, Adam Jonovski +4 more	2019-01-01
D837029	Lock	Stephen Cavanna, Douglas Greene, Kevin Houlihan, Nicolas Ivanoff, Adam Jonovski +4 more	2019-01-01
D837030	Lock	Stephen Cavanna, Douglas Greene, Kevin Houlihan, Nicolas Ivanoff, Adam Jonovski +4 more	2019-01-01
D837032	Lock	Stephen Cavanna, Douglas Greene, Kevin Houlihan, Nicolas Ivanoff, Adam Jonovski +4 more	2019-01-01
5949777	Wireless communication processor system	George Uyesugi	1999-09-07

Douglas Walker — 9 Patents

Issued Patents All Time

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