On October 11, 1868, he invented the "voting counter" and obtained his first patent.
In October 1869, he co-founded the "Pop-Edison Company" with friends.
Invented the general-purpose printing press in 1870 and sold the patent rights for US$40,000. Set up its own manufacturing plant in New York.
From 1872 to 1876, he invented the electric telegraph, the automatic repeater telegraph method, the double and quadruple telegraph methods, and manufactured wax
Paper carbon resistors, etc.
The acoustic wave analysis resonator was invented in 1875.
In 1876, a laboratory was established in Menlo Park, New Jersey - the first industrial research laboratory. It
is the origin of the modern concept of "study group". Invented the carbon rod microphone. Apply for a patent for automatic telegraph recording machine.
In 1877, the early telephone invented by Bell was improved and put into practical use in Menlo Park. Obtained
three patents: perforated pen, pneumatic stylus and ordinary stylus. On August 20, the phonograph, which proved to be Edison's favorite project, was invented.
In 1878, Edison claimed to solve the problem of electric lighting. The Royal Society holds a gramophone exhibition. Improve
voice machines, design microphones, loudspeakers, aerial speakers, sound engines, tuning engines, microthermometers,
taste testers, etc. Obtained patent for phonograph on February 19th. In July, he went to Wyoming with Professor Pike of the University of Pennsylvania to observe the total solar eclipse, and used the thermometer he invented to measure the entire temperature around the sun. Returned to Menlo Park in August and resumed
investing in scientific research experiments. Britain approves Edison's patent application for "Video Recorder".
William Wallace visited Connecticut in September. Started research into inventing the electric light. On October 5, a patent application for a platinum wire "electric lamp" was filed.
In 1879-1880, after thousands of setbacks, the high-resistance incandescent lamp was invented. Improved generator. Design new distribution of current
method, circuit alignment and calculation method. Invented the light bulb holder and switch. Invented the magnetic mineral separation method.
On August 30, 1879, Edison and Bell each demonstrated telephone devices at the Saratoga Creek City Hall. The result was that Edison's telephone was clearer than Bell's. On October 21, the high-resistance incandescent lamp was invented, which burned continuously for 40 hours. Application for carbon filament lamp patent on November 1st. On December 21, the New York Express reported on Edison's incandescent light bulb.
A public light show was held in Menlo Park on December 25 for 3,000 visitors from New York City.
Helicopter research in 1880. Obtained patent rights for electric light invention. Made into a magnetic screener. On January 28, the patent document for "Electricity
Transmission and Distribution System" was submitted. On February 18, "Scribe's Monthly" published the article "Edison's Electric Light", officially announcing the invention of the electric light. In May, the first ship "Columbia" illuminated by electric lights successfully made its trial voyage.
New York Edison Electric Lighting Company was established in December.
1881 New York Fifth Avenue headquarters established. An incandescent lamp factory is established in New York City. Set up a manufacturing plant for generators, underground power lines, and electric light parts. Experimenting with trolleys in Menlo Park.
The three-wire current distribution system was invented in 1882. Applied for 141 patents. The first central factory was established on September 4. At the end of December
More than 150 small power stations were established across the United States.
A patent for wireless telegraphy was filed on May 23, 1885.
From 1887 to 1890, he improved the cylindrical phonograph and obtained more than 80 patent rights for phonographs. Engaged in manufacturing and selling phonographs, records, talking machines, etc.
The phonograph gramophone was invented in 1888.
Participated in the Centennial Exposition in Paris in 1889. Invented many types of electric railways. Complete the moving movie machine.
1890-1899 Designed large stone crushers and grinders. Personally direct the large-scale development of iron ore using new methods in the Ogden Mine.
In 1891, he invented the "Edison Concentrator" and began to operate his own mining business. Obtained the patent for "Movie Projector
". The first successful movable motion picture telescope was demonstrated to the public on May 20 at the Edison Laboratory in West Orange, New Jersey.
In 1893, the world's first movie "studio" was built in the courtyard of Edison's laboratory.
On April 14, 1894, the first kinetoscope theater was opened in New York.
On April 23, 1896, the "Vita Projector" was used for the first time to show a film at Coster-Beyer's Music Hall in New York.
It was warmly welcomed by the public. .
In 1902, a new type of battery was used to test vehicle power. The range was 5,000 miles. Each time it was charged, it could go 100 miles.
It was a success.
In 1903, Edison's company produced its first feature film, "Train Robbery."
In 1909, after ten years of research, the battery was finally successful. Make a fax telegram. Obtained design patents for raw material machines, fine grinders
mills, and long kilns.
From 1910 to 1914, the disc-type phonograph was completed, with damage-free records and diamond records. Completed talkie machine.
The "disk record" was invented in 1910.
The "talkie" was invented in 1912. Developed into a speech phonograph.