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JORRITSMA JOHANNES N

Overview
  • Total Patents
    14
About

JORRITSMA JOHANNES N has a total of 14 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Canada and United States. Its main competitors in its focus markets measurement, packaging and shipping and engines, pumps and turbines are LITRE METER LTD, MAY CHARLES and EE D KK.

Patent filings in countries

World map showing JORRITSMA JOHANNES Ns patent filings in countries
# Country Total Patents
#1 Canada 7
#2 United States 7

Patent filings per year

Chart showing JORRITSMA JOHANNES Ns patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jorritsma Johannes N 14

Latest patents

Publication Filing date Title
CA2267949A1 Method of estimating total volume of an irregular wetwell
CA2118144A1 Improved method and apparatus for calculating flow rates through a pumping station
US5178427A Self-releasing lift hook
CA2059747A1 Self-releasing lift hook
US5190442A Electronic pumpcontrol system
US5182951A Method and aparatus for calculating flow rates through a pumping station
US5063778A Apparatus for measuring the level of a liquid in a wetwell
CA2017396A1 Apparatus for monitoring the height of a liquid above the apparatus, and the use thereof for controlling a sewage pumping station
US4821580A Method and apparatus for calculating flow rates through a pumping station
US4669308A Method and apparatus for determining liquid flow rates
US4455870A Method and apparatus for determining liquid flow rates
CA1151297A Method and apparatus for determining liquid flow rates