Inventor

Jang-hi Im

Inventor

Midland, MI, US

Overview

9→

Patents

1985–1995

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.

B29Cprimary

B29CShaping or joining of plastics14%

C08JWorking-up14%

Y10TTechnical subjects covered by former us classification14%

B01DSeparation10%

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. inserts10%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form10%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons10%

D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons5%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy5%

H10NElectric solid-state devices not otherwise provided for5%

PatentTitleYear

5,429,787'Method for rapid drying of a polybenzazole fiber'1995 5,417,915'Process for post-spin finishing of polybenzoxazole fibers'1995 4,965,135'Multilayer film with dead fold and twistability characteristics'1990 4,963,304'Process for preparing microporous membranes'1990 4,874,568'Process of making a porous membrane'1989 4,873,037'Method for preparing an asymmetric semi-permeable membrane'1989 4,806,439'Temporary barrier layer in batteries'1989 4,627,138'Method of making piezoelectric/pyroelectric elements'1986 4,540,623'Coextruded multi-layered articles'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1995Patents assigned to DOW CHEMICAL CO (9)· patent assignee history

1985–1995Based in Midland, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DOW CHEMICAL CO	9	1985–1995

Locations

Location	Patents	Span
Midland, MI, US	9	1985–1995