Inventor

Song Huang

Inventor
Henan, CN

Overview

2→
Patents
2002–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B01Fprimary
B01FMixing, e.g. dissolving, emulsifying or dispersing50%
E21BEarth or rock drilling50%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to SMITH INTERNATIONAL (1)· patent assignee history
2002Based in The Woodlands, TX, US· patent location history
2021Patents assigned to ZHENGZHOU SANHUA TECH & INDUSTRY CO LTD (1)· patent assignee history
2021Based in Henan, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SMITH INTERNATIONAL12002
ZHENGZHOU SANHUA TECH & INDUSTRY CO LTD12021
Locations
LocationPatentsSpan
Henan, CN12021
The Woodlands, Texas, US12002