PEARLSTEIN LEONARD

Overview

Total Patents

21

About

PEARLSTEIN LEONARD has a total of 21 patent applications. Its first patent ever was published in 1992. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets machines, medical technology and environmental technology are CRECIA CORP, GOEPP ROBERT A and KIROVO CHEPETSKIJ KHIM KOM.

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Patent filings in countries

World map showing PEARLSTEIN LEONARDs patent filings in countries

#	Country	Total Patents
#1	United States	7
#2	Canada	3
#3	EPO (European Patent Office)	3
#4	WIPO (World Intellectual Property Organization)	2
#5	Brazil	1
#6	Israel	1
#7	India	1
#8	Norway	1
#9	Poland	1
#10	South Africa	1

Patent filings per year

Chart showing PEARLSTEIN LEONARDs patent filings per year from 1900 to 2020

Similar Companies

CRECIA CORP 94% similarity

GOEPP ROBERT A 92% similarity

KIROVO CHEPETSKIJ KHIM KOM 92% similarity

MKV CORP 91% similarity

SMITH ROBERT F 91% similarity

TOYO ALUMINIUM FOIL PROD KK 91% similarity

HEMEX INC 90% similarity

NEUBERT ROBERT 90% similarity

ONX INC 90% similarity

SCA RESEARCH AB 90% similarity

Focus industries

#	Industry
#1	Machines
#2	Medical technology
#3	Environmental technology
#4	Packaging and shipping
#5	Macromolecular chemistry and polymers
#6	Surface technology and coating
#7	Textiles and paper

Focus technologies

#	Technology
#1	Unspecified technologies
#2	Climate change mitigation in wastewater treatment
#3	Containers for goods storage
#4	Unspecified technologies
#5	Object sterilising
#6	Implantable devices
#7	Special macromolecular compounds
#8	Paper coating
#9	Layered products
#10	Processes for applying fluent materials

Top inventors

#	Name	Total Patents
#1	Pearlstein Leonard	15
#2	Suskind Stuart P	12
#3	Suskind Stuart	7
#4	Sunskind Stuart P	1

Latest patents

Publication	Filing date	Title
US5849816A	1996-01-31	Method of making high performance superabsorbent material
CA2172847A1	1995-07-07	High performance superabsorbent material and absorbent devices containing the same
WO9604024A1	1995-07-07	High performance superabsorbent material and absorbent devices containing the same
US5549590A	1994-08-01	High performance absorbent particles and methods of preparation
US5540962A	1994-04-06	Degradable package for containment of liquids
WO9409210A1	1993-10-15	Compostable packaging for containment of liquids
CA2150377A1	1993-10-15	Compostable packaging for containment of liquids
US5286538A	1992-08-03	Disposable container for moist paper towels the same