Inventor

Mark Stemm

Inventor
Santa Monica, CA, US

Overview

8→
Patents
2002–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 8 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication57%
G06FElectric digital data processing14%
H04WWireless communication networks14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to EMBRACE NETWORKS INC (1)· patent assignee history
2002Based in Berkeley, CA, US· patent location history
2009–2017Patents assigned to CLOUDMARK INC (5)· patent assignee history
2009–2011Based in San Francisco, CA, US· patent location history
2017Patents assigned to COUDMARK INC (1)· patent assignee history
2017–2019Based in Santa Monica, CA, US· patent location history
2019Patents assigned to PROOFPOINT INC (2)· patent assignee history
2019Patents assigned to PROOFPRINT INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CLOUDMARK INC52009–2017
PROOFPOINT INC22019
COUDMARK INC12017
EMBRACE NETWORKS INC12002
PROOFPRINT INC12019
Locations
LocationPatentsSpan
Santa Monica, California, US52017–2019
San Francisco, California, US22009–2011
Berkeley, California, US12002