Learn more

STEPHENS JOHN

Overview
  • Total Patents
    15
About

STEPHENS JOHN has a total of 15 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets medical technology, thermal processes and chemical engineering are INFUSIVE TECHNOLOGIES LLC, KONTRON INC and Teleflex Life Sciences Llc.

Patent filings per year

Chart showing STEPHENS JOHNs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stephens John 14
#2 Danks John G 1
#3 De Buda Francis 1
#4 Wilbur William Royal 1
#5 Beatty Ross J 1
#6 Stephens Archibald 1

Latest patents

Publication Filing date Title
EP2296735A2 Needle protective device
US4565794A Production of silica gel and an adsorbent, absorbent product from sericitic clay
GB190701231A Improvements in Railway Signalling Detonator-apparatus
GB190412700A An Improved Lifting Jack.
US729101A Furnace for heating metal sheets.
GB189817704A Improvements in the Manufacture of Sheet Iron.
GB189726606A An Improved Brake Treadle for Road Vehicles.
GB189511133A An Improved Attachment for Cables to Submarine Mines, which Attachment is also applicable for Attaching any Ropes or Cables.
CA49618A Machine for threading screws and bolt
CA237036A Bucket elevator
CA7046A Improvements on toe protectors