CLARK ALEX LTD has a total of 11 patent applications. Its first patent ever was published in 1969. It filed its patents most often in Canada, United States and Germany. Its main competitors in its focus markets optics and machines are FISCHER IND INC, MEEK JAMES WYNDHAM and BLANRIMA PTY LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 4 | |
#2 | United States | 3 | |
#3 | Germany | 2 | |
#4 | United Kingdom | 2 |
# | Technology | |
---|---|---|
#1 | Processing photographic materials | |
#2 | Unspecified technologies |
# | Name | Total Patents |
---|---|---|
#1 | Ramsdale Roy | 6 |
#2 | Masygan R | 2 |
#3 | Ramsdale R | 1 |
Publication | Filing date | Title |
---|---|---|
US3981092A | Slide frame | |
CA994302A | Apparatus for dispensing photographic chemicals | |
CA989372A | Reel for photographic sheet material | |
US3763759A | Processing of photographic roll film | |
CA930225A | Photographic developer apparatus | |
GB1326009A | Photographic developer reel |