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

Phil Schaefer — 1 Patent

CICiena: 1 patents #757 of 1,406Top 55%
Petaluma, CA: #295 of 492 inventorsTop 60%
California: #249,524 of 386,348 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Phil Schaefer has been granted 1 US patent while listed as an inventor at Ciena. All of these patents were granted in 2018. Phil Schaefer ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Phil Schaefer in Petaluma, CA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10091023 Systems and methods to detect and recover from a loop in an Ethernet ring protected network Balaji Subramaniam, Paul Simon Nahlous, Terry Mitchell 2018-10-02 $15,132,000