Inventor

Helen J. Yoo

Inventor

San Francisco, CA, US

Overview

7→

Patents

2003–2021

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 7 as inventor

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

B23Dprimary

B23DPlaning19%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%

Y10TTechnical subjects covered by former us classification19%

G11BInformation storage based on relative movement between record carrier and transducer13%

B22FWorking metallic powder6%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering6%

C23CCoating metallic material6%

H01JElectric discharge tubes or discharge lamps6%

Y02PClimate change mitigation technologies in the production or processing of goods6%

PatentTitleYear

11,078,571Deposition apparatus including a heat dissipation member2021 8,424,429'Pyrotechnic drop mechanism for power tools'2013 8,074,546'Pyrotechnic drop mechanism for power tools'2011 7,628,101'Pyrotechnic drop mechanism for power tools'2009 6,822,827'Erasure techniques for magnetic tape media'2004 6,644,581'Flange guide for improved tape winding'2003 6,508,980'Metal and ceramic containing parts produced from powder using binders derived from salt'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2004Patents assigned to IMATION CORP (2)· patent assignee history

2003–2004Based in Maplewood, MN, US· patent location history

2009–2013Patents assigned to POWER TOOL INST (3)· patent assignee history

2009–2013Based in San Francisco, CA, US· patent location history

2011–2013Patents assigned to ANDERSON WILFRED H (2)· patent assignee history

2011–2013Patents assigned to HAYASHIDA JEFFREY Y (2)· patent assignee history

2011–2013Patents assigned to KNAPP WILLIAM R (2)· patent assignee history

2021Based in Cheonan-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
POWER TOOL INST	3	2009–2013
ANDERSON WILFRED H	2	2011–2013
HAYASHIDA JEFFREY Y	2	2011–2013
IMATION CORP	2	2003–2004
KNAPP WILLIAM R	2	2011–2013

Locations

Location	Patents	Span
San Francisco, California, US	3	2009–2013
Maplewood, Minnesota, US	3	2003–2004
Cheonan-si, KR	1	2021