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Inventor

James E. Blessing

Inventor
Santa Clara, CA, US

Overview

5→
Patents
1981–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H01Jprimary
H01JElectric discharge tubes or discharge lamps50%
C10GCracking hydrocarbon oils17%
G01NInvestigating or analysing materials by determining their chemical or physical properties17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
10,892,153Robust ion source202110,541,122Robust ion source20206,239,429'Quadrupole mass spectrometer assembly'20015,418,136'Devices for detection of an analyte based upon light interference'19954,298,450'Alcohols as hydrogen-donor solvents for treatment of coal'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to US ENERGY (1)· patent assignee history
1981Based in Menlo Park, CA, US· patent location history
1995Patents assigned to BIOSTAR INC (1)· patent assignee history
1995Based in Boulder, CO, US· patent location history
2001–2021Patents assigned to MKS INSTR INC (3)· patent assignee history
2001Based in Morgan Hill, CA, US· patent location history
2020Based in Scotts Valley, CA, US· patent location history
2021Based in Santa Clara, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MKS INSTR INC32001–2021
BIOSTAR INC11995
US ENERGY11981
Locations
LocationPatentsSpan
Santa Clara, California, US12021
Scotts Valley, California, US12020
Morgan Hill, California, US12001
Boulder, CO, US11995
Menlo Park, California, US11981