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POLYPHALT INC

Overview
  • Total Patents
    70
About

POLYPHALT INC has a total of 70 patent applications. Its first patent ever was published in 1993. It filed its patents most often in Australia, Canada and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets macromolecular chemistry and polymers, machines and consumer goods are DOAK KENNETH W, YANGZHOU SPRING WIRE & CABLE CO LTD and YIXING SENTAI PLASTIC CO LTD.

Patent filings per year

Chart showing POLYPHALT INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liang Zhi-Zhong 53
#2 Woodhams Raymond T 16
#3 Smith James W 15
#4 Liang Zhi Zhong 5
#5 Zhang Yan-Ping 3
#6 Liang Zhizhong 3
#7 Zhi-Hong Liang 2
#8 Woodhams Thomas Raymond 1
#9 Liang Z-Z 1
#10 Zhi-Zong Liang 1

Latest patents

Publication Filing date Title
US6579921B1 Modified bituminous composition for roof membranes
WO9942526A1 Lignin based colloidal compositions
US6737443B1 Lignin based colloidal compositions
CN1218074A Bituminous compositions prepared with process treated vulcanized rubbers
EP0973833A1 Elastomer-modified bituminous compositions
CZ294999A3 Bituminous granulation product stabilized by a polymer and process for preparing thereof
CN1252826A Polymer stabilized bitumen granulate
US6174939B1 Stabilized bituminous composition based on polymer in-situ blend
CN1216056A Stabilized bituminous composition based on polymer in situ blend
NZ326288A Stabilization of incompatible materials by macromolecules
EG20923A Stabilized bitumen compositions
GB9306517D0 Stabilized bitumen compositions