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PRESTHOLDT HENRY L

Overview
  • Total Patents
    17
About

PRESTHOLDT HENRY L has a total of 17 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States and Canada. Its main competitors in its focus markets basic materials chemistry are SAIDEN CHEMICAL INDUSTRY CO LTD, TOKYO PACKS KK and PYR COAT INC.

Patent filings in countries

World map showing PRESTHOLDT HENRY Ls patent filings in countries
# Country Total Patents
#1 United States 16
#2 Canada 1

Patent filings per year

Chart showing PRESTHOLDT HENRY Ls patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Basic materials chemistry

Focus technologies

# Technology
#1 Adhesives
#2 Glue or gelatine preparation

Top inventors

# Name Total Patents
#1 Prestholdt Henry L 17

Latest patents

Publication Filing date Title
US1701763A Process of rendering glue waterproof
US1604309A Casein glue
US1604311A Casein glue
US1604314A Casein glue
US1604308A Casein glue
US1604307A Casein glue
US1535375A Casein glue
US1506203A Casein glue
US1506202A Casein glue
US1604317A Casein glue
US1604316A Casein glue
US1604315A Casein glue
US1506201A Casein glue
US1604313A Casein glue
US1604310A Casein glue
US1604312A Casein glue
CA298144A Process of rendering glue waterproof