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CALDWELL WILLIAM J

Overview
  • Total Patents
    13
About

CALDWELL WILLIAM J has a total of 13 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United States and Canada. Its main competitors in its focus markets thermal processes, engines, pumps and turbines and machines are HUNTAIR INC, CONVEC APS and CHENGDU ZHONGBANG INTELLIGENT TECH CO LTD.

Patent filings in countries

World map showing CALDWELL WILLIAM Js patent filings in countries
# Country Total Patents
#1 United States 12
#2 Canada 1

Patent filings per year

Chart showing CALDWELL WILLIAM Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Caldwell William J 13

Latest patents

Publication Filing date Title
US2969009A Centrifugal take-off and control nozzle
US2738719A Centrifugal nozzle with adjustable outlet vanes
US2817283A Method and structure for controlling thermal effects in the air conditioning of multi-storied buildings
US2763195A Air conditioning of entrance areas
US2706942A Rifled air control nozzles
US2708546A Centrifugal fan with wave trap and cut-off
US2684232A Centrifugal air washer and conditioner
US2807329A Expander silencer unit
US2740347A Systems for ventilating tunnels and the like
US2371735A Powdered fuel feeding system for internal-combustion engines
US2373741A Adjustable nozzle
US2335734A Centrifugal fan
CA607657A Method and apparatus for air conditioning rooms and like spaces