HEWSON CARL E has a total of 15 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United States, Canada and Belgium. Its main competitors in its focus markets medical technology, machines and environmental technology are FREY HELMUT, TYCO INTERNAT US INC and PPTT LLC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 7 | |
#2 | Canada | 4 | |
#3 | Belgium | 1 | |
#4 | Germany | 1 | |
#5 | Denmark | 1 | |
#6 | United Kingdom | 1 |
# | Industry | |
---|---|---|
#1 | Medical technology | |
#2 | Machines | |
#3 | Environmental technology | |
#4 | Consumer goods |
# | Technology | |
---|---|---|
#1 | Syringes | |
#2 | Physical therapy devices | |
#3 | Unspecified technologies | |
#4 | Climate change adaptation technologies | |
#5 | Laundering textiles | |
#6 | Electrotherapy |
# | Name | Total Patents |
---|---|---|
#1 | Hewson Carl E | 15 |
Publication | Filing date | Title |
---|---|---|
US5052390A | Method and apparatus for defibrillating the heart using internal esophageal electrode and external chest electrode | |
US3511275A | Fluid pressure biased valve with dashpot | |
US3351052A | Heart and lung resuscitator | |
US3307541A | Heart and lung resuscitator | |
US3034501A | Inflatable heart massager | |
US2792857A | Laundry container | |
CA821861A | Heart and lung resuscitator | |
CA855507A | Heart and lung resuscitator | |
CA856537A | Heart and lung resuscitator | |
CA857100A | Heart and lung resuscitator |