When was autofocus invented? Leica invented the autofocus camera system with the Correfot in 1976. Legendary German camera maker Leica spent nearly 20 years patenting technology that would take focusing out of the hands of photographers.
Why did Henry Bessemer invent steel? Bessemer had been trying to reduce the cost of steel-making for military ordnance, and developed his system for blowing air through molten pig iron to remove the impurities. This made steel easier, quicker and cheaper to manufacture, and revolutionized structural engineering.
How do I get a utility patent for an idea? In some countries, the requirements for protecting utility models are basically the same as for patents, that is, (i) they must be within the eligible subject matter; (ii) they must be novel; (iii) they must involve an inventive step (non-obvious); (iv) they must have industrial applicability (utility); and (v) they …
What are the requirements for an invention and utility model to be patentable? A utility model is an intellectual property right, which similar to patents, provides a monopoly right for an invention. … Austria, China, France*, Germany, Japan, Russia, Spain and Taiwan are examples of the more prominent countries where utility model protection is available.
When was autofocus invented? – Related Questions
Why was the 3d pen invented?
They invented the first 3D pen which they called as a 3Doodler. It is said that they had a bad experience with 3D printers and wanted to create a product which was simple & affordable to every hobbyists and artist. They launched their first product, the 3Doodler, through a Kickstarter campaign in February 2013.
What is pozzolan and who invented it?
Although the Romans typically are credited with inventing pozzolana based cement, there is archeological evidence that the Greeks were using their own pozzolana from the eruption at Thera (Santorini) for water cisterns as early as 600 B.C. as well as for methods of wall construction only later adopted by the Romans.
What was the first app ever invented?
In 1997, the Nokia 6110 included a built-in version of the basic arcade game “Snake,” which many consider the first mobile app.
Where was the philly cheese steak invented?
cheesesteak, also called Philadelphia cheesesteak or Philly cheesesteak, a sandwich made with sliced or chopped steak and melted cheese on a long sandwich roll. While its origins are subject to debate, brothers Pat and Harry Olivieri are often credited with coming up with the idea in South Philadelphia in the 1930s.
When was cable invented?
Cable television originated in the United States almost simultaneously in Arkansas, Oregon and Pennsylvania in 1948 to enhance poor reception of over-the-air television signals in mountainous or geographically remote areas.
What important invention facilitated impressionist painting?
It was the invention of tube paint that inspired Impressionists to paint en plein air and the invention of photography that influenced them. Painters were liberated from the constraints of color use due to it. The brush was freed to move (rapid, spontaneous strokes).
When was pvc invented?
Polyvinyl chloride is a plastic that is better known as vinyl. It is also known by the acronym PVC. First discovered in 1835, it took scientists over ninety years to find a use for this material. In 1926, Waldo Semon, a scientist with the B.F.
When was the slide projector invented?
In 1965, the first carousel slide projector was patented and sold to Eastman Kodak by its inventor, David E. Hansen.
When did nikola tesla invented wireless electricity?
He made great progress with the oscillating transformer now known as the Tesla coil. It was a machine capable of producing electric power at a higher voltage and frequency than had ever been seen before. In 1890, Tesla secured this patent.
What country invented the swimming pool?
More man-made pools surfaced throughout the ancient world. In Rome and Greece, swimming was part of the education of elementary age boys and the Romans built the first swimming pools (separate from bathing pools). The first heated swimming pool was built by Gaius Maecenas of Rome in the first century BC.
When were corn dogs invented?
Several different vendors have claimed they invented the corn dog, in places such as Texas, Minnesota, Illinois, and California. Several sources say Carl and Neil Fletcher were the official inventors, at the Texas State Fair in 1942.
What else did eli whitney invent?
In popular mythology, Eli Whitney has been deemed the “father of American technology,” for two innovations: the cotton gin, and the idea of using interchangeable parts. Eli Whitney was born in 1765 and grew up on a Massachusetts farm.
When was the ouija board first invented?
Businessman Elijah Bond had the idea to patent a planchette sold with a board on which the alphabet was printed, much like the previously existing talking boards. Bond filed on 28 May 1890 for patent protection and thus is credited with the invention of the Ouija board. Issue date on the patent was 10 February 1891.
Where is pizza really invented?
Pizza was first invented in Naples, Italy as a fast, affordable, tasty meal for working-class Neapolitans on the go. While we all know and love these slices of today, pizza actually didn’t gain mass appeal until the 1940s, when immigrating Italians brought their classic slices to the United States.
How did madam cj walker invention help the world?
Madam C.J. Walker is influential to the Industrial Revolution because of her inventions, social contributions, and long-term impacts. She was not only an inventor who created hair care products, she was also a civil rights activist. … Walker had great ideas and helped with civil rights that still impact the world today.
When was bladeless fans invented?
The Bladeless Fan was first presented before the world by James Dyson in October 2009. It was then called the Dyson Air Multiplier. Though the concept was first given by the Japanese company, Toshiba, in 1981, James Dyson improved upon the design and technology to give us the Dyson Air Multiplier.
When was islamic art invented?
But what is Islamic art? Islamic art is a modern concept created by art historians in the 19th century to facilitate categorization and study of the material first produced under the Islamic peoples that emerged from Arabia in the seventh century.
Who first invented smokeless powder?
In 1884, Paul Vieille invented a smokeless powder called Poudre B (short for poudre blanche, white powder, as distinguished from black powder) made from 68.2% insoluble nitrocellulose, 29.8% soluble nitrocellulose gelatinized with ether and 2% paraffin.
Who is galileo and what did he invent?
Galileo was a natural philosopher, astronomer, and mathematician who made fundamental contributions to the sciences of motion, astronomy, and strength of materials and to the development of the scientific method. He also made revolutionary telescopic discoveries, including the four largest moons of Jupiter.
When was the first indoor toilet invented?
The first modern flushable toilet was described in 1596 by Sir John Harington, an English courtier and the godson of Queen Elizabeth I. Harington’s device called for a 2-foot-deep oval bowl waterproofed with pitch, resin and wax and fed by water from an upstairs cistern.
What other inventions did the wright brothers make?
Among their many creations, they built the 1902 Wright glider, which was the first controlled glider with a movable rudder that allowed the pilot to more precisely control yaw, and the 1905 Wright flyer, which was the first practical flying machine.