Inventor

Ren Hua Feng

Inventor
Shanghai, CN

Overview

1→
Patents
2006
Patent span
Performing operations
Primary field (CPC B)

Patents· 1 as inventor

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

B29Dprimary
B29DProducing particular articles from plastics or from substances in a plastic state20%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form20%
C09KMaterials for miscellaneous applications, not provided for elsewhere20%
G02BOptical elements, systems or apparatus20%
Y10TTechnical subjects covered by former us classification20%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006Patents assigned to 3M INNOVATIVE PROPERTIES CO (1)· patent assignee history
2006Based in Shanghai, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
3M INNOVATIVE PROPERTIES CO12006
Locations
LocationPatentsSpan
Shanghai, CN12006