| 1957 |
Introduced the world's first transistorized sonar instrument for sporting, fishing and boating |
| 1959 |
Developed the technology to shoot high frequency sonar signals through the bottom of boat hulls |
| 1960 |
Produced temperature-stable transducers, enabling fishermen to make soundings through ice |
| 1960 |
Used backlighted faceplates for easy night-time viewing |
| 1965 |
Conceived and developed effective interference suppression systems |
| 1965 |
Produced the first sonars and transducers capable of high speed performance (from 15 to more than 65 miles per hour) |
| 1969 |
Produced a high-resolution sonar instrument able to separate fish six inches off the bottom |
| 1970 |
Patented an electronic speed control circuit for multi-depth range sonars |
| 1970 |
Patented a method and apparatus for improving fishing under a dock |
| 1971 |
Devised the first flasher-type sonar with a focused lens light-trap dial |
| 1972 |
Patented time-varying gain control circuits |
| 1972 |
Patented a display stand |
| 1973 |
Patented the variable pulse length suppression system, effectively eliminating acoustical and electrical interference |
| 1973 |
Patented a device for indicating the temperature and depth of water |
| 1973 |
Patented a submerged object warning apparatus for ships |
| 1973 |
Patented a trolling motor with steering means |
| 1973 |
Patented a light shield for an indicating instrument |
| 1973 |
Patented an apparatus for mounting a transducer to the transom of a boat |
| 1973 |
Patented an inverter ballast circuit |
| 1973 |
Patented an apparatus for providing an indication of the depth of objects in water |
| 1974 |
Patented a sonar transducer |
| 1974 |
Patented an oxygen analyzer |
| 1974 |
Patented an improved trolling motor |
| 1974 |
Patented a four phase stepping motor control |
| 1974 |
Patented an automatic down rigger |
| 1974 |
Patented a light emitting diode (LED) of phosphorous readout |
| 1974 |
Patented a spring loaded transducer bracket |
| 1976 |
Introduced the first fully interchangeable transducers |
| 1976 |
Patented a sonar flasher speed control |
| 1977 |
Patented a low cost gimbal mount sonar |
| 1978 |
Patented a fully variable tracking suppression system for white-line or gray-line paper chart recorders |
| 1978 |
Patented a method of manufacturing transducers |
| 1979 |
Combined microprocessors (computers on a microchip) and independent keyboard entry in sonars |
| 1980 |
Introduced a silent, lifetime brush for flashers |
| 1980 |
Patented a brush holder for rectilinear recorder |
| 1980 |
Patented a commutator and fiber brush rotating disc |
| 1982 |
Designed a super-high resolution sonar able to separate vertical targets just one inch apart |
| 1982 |
Patented a range expander for sonar |
| 1983 |
Perfected a plastic through-the-hull transducer even stronger than its bronze counterpart |
| 1983 |
Patented a sonar with signal amplitude differentiation and noise suppression |
| 1984 |
Patented an improved gimbal mounting bracket |
| 1984 |
Patented a transducer mounting |
| 1985 |
Introduced the first LCG that combined a microprocessor with independent keyboard entry of upper and lower depth limits |
| 1986 |
Patented a sonar with capability of transmitting and printing on alternate cycles |
| 1987 |
Introduced "Clearvision" LCG display screens, with high contrast graphics and the widest viewing angle in the industry |
| 1989 |
Patented a sonar fish finder with a split screen display which indicates whether fish or other objects are left, right, or under the boat |
| 1990 |
Patented a 3D sonar transducer, and a method of mounting a transducer flush with the boat hull maximizing sonar performance with no effect on boat performance |
| 1990 |
Patented a method of mounting a transducer in a boat hull |
| 1992 |
Patented a sonar transducer with low drag, low acoustical noise pickup, and improved sonar echo reception through its unique ellipsoidal shape |
| 1995 |
Introduced the world's first LCD product to offer integrated GPS, mapping and sonar capabilities, and patented a sonar system with an interactive display |
| 1996 |
Patented a ratcheted transducer mount with a protective kick-up feature to prevent damage if it hits a floating object |
| 1996 |
Introduced the industry's first 12 channel GPS receiver sold for under $200 |
| 1996 |
Introduced the first hand held aviation GPS with full mapping capability |
| 1996 |
Patented a two-piece interlocking connector |
| 1997 |
Patented a floating transducer accessory for bank and shore fishing |
| 1997 |
Patented a method of optionally installing a transducer in a boat hull |
| 1998 |
Introduced the industry's first hand-held mapping GPS shipped with a full detailed mapping CD-ROM enabling upload of user selectable maps into the unit |
| 1998 |
Patented a buoyant transducer assembly |
| 1999 |
Introduced the "MapCreate" CD-ROM which allows the user to choose from a highly detailed digitized database with features such as, U.S. Navigational Aids, Streams and other water bodies for the boater and angler; or U.S. Rural Roads, Railroads, State and Federal Highways for land-based applications. In addition, the user can create a customized map of the area they select to download into their Lowrance GPS mapping unit.
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| 2001 |
Introduced the Sport Fishing "First" of silent, paperless digital recording/playback/storage of sonar graphs and GPS trip details in the LCX-15 and 16 series of products. |
| 2002 |
Introduced the Grayscale Flasher feature in select sonar units. Introduced the iFINDER®, the first hand-held GPS to utilize standard off-the-shelf memory cards of up to 128MB and more |