Inventor

Changfa Xiao

Inventor

Tianjin, CN

Overview

9→

Patents

2012–2020

Patent span

Performing operations

Primary field (CPC B)

Patents· 9 as inventor

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

B01Dprimary

B01DSeparation41%

C02FTreatment of water, waste water, sewage, or sludge12%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%

B29CShaping or joining of plastics6%

B29DProducing particular articles from plastics or from substances in a plastic state6%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts6%

B29LIndexing scheme associated with subclass b29c, relating to particular articles6%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

C09KMaterials for miscellaneous applications, not provided for elsewhere6%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons6%

PatentTitleYear

10,710,027Reinforced oil-absorptive membrane material, unit and preparation method thereof2020 10,252,224Hydrophobic-oleophilic hollow fiber composite membrane and preparing method thereof2019 9,573,113'Hollow tubular oil absorbing material and preparing method thereof'2017 9,533,266'Method for preparing homogeneous braid-reinforced PPTA hollow fiber membrane'2017 9,415,348'Method for preparing aromatic polyamide porous hollow fiber membrane'2016 9,211,503'Preparation method of perfluorinated polymer hollow fiber membrane'2015 9,095,819'Composition for preparation of hollow fiber porous membrane and preparation method using the same'2015 8,722,146'Method for making liquid separation membrane'2014 8,110,525'Method of preparing oil absorbing fibers'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2020Patents assigned to UNIV TIANJIN POLYTECHNIC (8)· patent assignee history

2012–2015Patents assigned to XIAO CHANGFA (3)· patent assignee history

2012–2015Patents assigned to AN SHULIN (2)· patent assignee history

2012Patents assigned to FENG YAN (1)· patent assignee history

2012–2020Based in Tianjin, CN· patent location history

2014–2015Patents assigned to HU XIAOYU (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV TIANJIN POLYTECHNIC	8	2012–2020
XIAO CHANGFAself	3	2012–2015
AN SHULIN	2	2012–2015
HU XIAOYU	2	2014–2015
FENG YAN	1	2012

Locations

Location	Patents	Span
Tianjin, CN	9	2012–2020