DOLL RESEARCH has a total of 35 patent applications. Its first patent ever was published in 1970. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets medical technology and measurement are HEALTHUP SP Z O O, CHA UN JONG and PRONK TECHNOLOGIES INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 7 | |
#2 | Canada | 3 | |
#3 | France | 3 | |
#4 | United Kingdom | 3 | |
#5 | Austria | 2 | |
#6 | Belgium | 2 | |
#7 | Switzerland | 2 | |
#8 | Germany | 2 | |
#9 | Denmark | 2 | |
#10 | Israel | 2 | |
#11 | Norway | 2 | |
#12 | Sweden | 2 | |
#13 | Italy | 1 | |
#14 | Netherlands | 1 | |
#15 | USSR (Union of Socialist Soviet Republics) | 1 |
# | Industry | |
---|---|---|
#1 | Medical technology | |
#2 | Measurement |
# | Technology | |
---|---|---|
#1 | Diagnosis and surgery | |
#2 | Measuring volume |
# | Name | Total Patents |
---|---|---|
#1 | Doll H G | 10 |
#2 | Broner H J | 10 |
#3 | Doll Henri Georges | 5 |
#4 | Broner Hans J | 5 |
#5 | Doll Henri G | 4 |
#6 | Broner H | 2 |
#7 | Doll H | 2 |
#8 | Broner Hans Joachim | 2 |
#9 | Broner Gans Ioakhim | 1 |
#10 | Doll Henry Georges | 1 |
Publication | Filing date | Title |
---|---|---|
DK195380A | Electromagnetic blood flow meter | |
US4134396A | Method and apparatus for developing intermittent venous blood flow and measuring total blood flow | |
US4205688A | Method and apparatus for developing and measuring pulsed blood flow | |
CA1018605A | Non-invasive electromagnetic bloodflow measuring system with rejection of noises | |
US4036215A | Apparatus and method for eliminating perturbations of a kinetic origin in the blood flow waveform | |
US3994285A | Revolving symmetrical magnet assembly and improved method of blood flow detection | |
US3809070A | Non-invasive electromagnetic bloodflow measuring system with rejection of noises | |
US3759247A | Electromagnetic flowmeter | |
US3659591A | Electromagnetic flowmeter |