#2: Inventors and Inventions Answers
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received a patent for "dry scouring of clothes" and
may have been the first African American inventor to receive a
Jennings received patent in 1821 for "dry scouring of
clothes". He may of been the 1st African-American inventor
to receive a US patent.
Use these next questions to help students understand how to use
the two different types of database resources provided as
resources- one is alphabetical by inventor and the other is by
did George Washington Carver receive patents for?
chemist George Washington Carver developed crop-rotation methods
for conserving nutrients in soil and discovered hundreds of new
uses for crops such as the peanut, which created new markets for
farmers, especially in the South"
The answer is: his patents were awarded for the development of
cosmetics, stain, paint and process for producing them.
Have students use the databases to research inventors and create
their own scavenger hunts, word finds and crossword puzzles.
Challenge groups to select an inventor from the database and
defend why their invention was important or more important than
those selected by another group.
inventor didn't invent the elevator, but did invent what led to
the elevator being safe to use in tall buildings? Who was it and
what did he invent?
answer is:Elisha Graves Otis invented an elevator brake to make
elevators safe and skyscrapers a reality.
This inventor has over 300 patents to his credit. He is
responsible for inventions which led to the modern day
Television. Who is he?
answer is: Philo Taylor Farnsworth
may have received the very first US patent? What was it for?
answer is:The first US patent was granted in 1790 to Samuel
Hopkins of Philadelphia for "making pot and pearl
ashes"-a cleaning formula used in soapmaking.
This woman invented a machine that made the brown paper bags we
all have used. She received the patent in 1871. She had other
patented inventions credited to her as well. Who is she?
answer is: Margaret Knight
This web page lists 6 women inventors. Take this opportunity to
discuss the role of women and how their contributions have been
important to our way of life and economy. Early women inventors
were often not able to patent inventions in their own names and
sometimes their husbands or others males had to get patents for
them. Here are some other related web sites which discuss women
(Discusses African-American Women Inventors)
Try setting up a page of URLs to help students locate
information on this topic. You can place resources as bookmarks
in your browser or can create a file which can be opened in the
browser to display the URLs they are to use. Most browsers now
have a place to "compose" a page which can be used to
students can use to use for help:
(US Patent Office Kids Pages)
(US Patent Office)
(Inventors Hall of Fame)
(Database of inventions in alphabetical order)
(Database of inventors by name)
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