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CHEWTER LESLIE ANDREW

Overview
  • Total Patents
    38
About

CHEWTER LESLIE ANDREW has a total of 38 patent applications. Its first patent ever was published in 2002. It filed its patents most often in United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets organic fine chemistry, environmental technology and chemical engineering are SAUDI BEJSIK INDASTRIZ CORP, NICHOLAS CHRISTOPHER P and JAN DENG-YANG.

Patent filings in countries

World map showing CHEWTER LESLIE ANDREWs patent filings in countries
# Country Total Patents
#1 United States 35
#2 WIPO (World Intellectual Property Organization) 3

Patent filings per year

Chart showing CHEWTER LESLIE ANDREWs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chewter Leslie Andrew 38
#2 Van Westrenen Jeroen 28
#3 Winter Ferry 11
#4 Ramesh Rajaram 5
#5 Quevedo Enriquez Jose Atilio 4
#6 Verhaak Michiel Johannes Franc 4
#7 Henry Herve 3
#8 Sadasivan Vijayakumari Sivakumar 3
#9 Verhaak Michiel Johannes Franciscus Maria 3
#10 Westrenen Jeroen Van 2

Latest patents

Publication Filing date Title
US2013245294A1 Method for start-up of an oxygenate-to-olefin process
US2013066032A1 Process for preparing ethylene and/or propylene
US2013245292A1 Process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product
US2013225393A1 Process for the regeneration of a catalyst
US2013225894A1 Process for the preparation of olefins
US2012142990A1 procress for the preparation of an olefinic product, process for the manufacture of an oxygenate conversion catalyst and an oxygenate conversion catalyst
US2011313225A1 Process for the preparation of an olefinic product, oxygenate conversion catalyst particles, and process for the manufacutre thereof
US2011295049A1 Catalyst return apparatus, and process for reacting a feedstock
US2009187056A1 Process for the preparation of an olefin
US2009227824A1 Process for the alkylation of a cycloalkene