Yes, at least one. His brother Georg collaborated with him on ink formulation for his ballpoint pen. He may have had others as well; I don't know.
Yes he has five siblings.
Yes, Sarah Boone had siblings. She had seven siblings, although not much is known about them. Sarah Boone was the inventor who received a patent for an improved ironing board design in 1892.
A biro is a BIRO-brand ballpoint pen, or by extension, any variety of ballpoint pen.
As Far as researching Valerie Thomas, there is no sign or conclusions that she has any sibilings.
Fiona Wood is the inventor of Spray on Skin. She has never stated if she has any siblings. She is the current director of the Royal Perth Hospital burn unit.
no.
In Greek mythology, Daedalus is primarily known as a skilled craftsman and inventor. There are no widely recognized accounts of him having any siblings; most stories focus on his own achievements and his relationship with his son Icarus. Some variations in myths may mention other characters, but they do not typically describe Daedalus as having siblings.
laszlo pinter is a fairly common name in Hungary. in order to answer with any accuracy, you'd need to give a few more details. how old is the laszlo pinter that you want information for? is he currently living in Hungary or was he simply born there? what is his profession or where did he go to college?
There is little information available about Robert Recorde's family, including whether he had siblings. Most historical records focus on his contributions to mathematics and his role as a physician and inventor of the equals sign. Therefore, details about his personal life, including any siblings, remain largely undocumented.
You can be an inventor at any age.
He does not have any siblings.
any siblings