1/3 On this day in 1962, Wilson Greatbatch received US Patent No. 3,057,356 for a “Medical cardiac pacemaker” designed to be implanted entirely inside the body.
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1/2 On this day in 1942, Chester Carlson received US Patent No. 2,297,691 for “Electrophotography,” later known as xerography.
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1/3 On this day in 1951, Alexander Salot, a shoemaker from Bremen-Blumenthal, received German Patent No. 815761 for “Football boots or the like with exchangeable anti-skid studs”.
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1/2 I’ve just read the new book “Unfettered Invention: How the X Patents Sparked Early American Technology” by Scott Guthery, Julie Burke, and Michael Risch.
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1/3 On this day in 1981, German Patent No. 2205525 was granted to the toy company Geobra Brandstätter for a “Toy figure”, the Playmobil figure invented by Hans Beck.
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1/3 On this day in 1921, Stanley Valinski received US Patent No. 1,392,095 for a “Man-catching tank”. Its intended destination was not a battlefield, but a bank lobby.
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On this day in 2001, Joe Armstrong received US Patent No. 6,293,874 for a “User-operated amusement apparatus for kicking the user’s buttocks”.
Apparently, even kicking yourself was a problem worth solving properly.
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1/2 On this day in 1877, fire devastated the U.S. Patent Office and destroyed tens of thousands of patent models.
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1/2 On this day in 1930, Johannes Ostermeier received US Patent No. 1,776,637 for a “Flash lamp”, a patent behind the first commercially successful flashbulbs.
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On this day in 1903, Eldridge Johnson received US Patent No. 739,318 for a “Sound-record”. His invention concerned the paper label at the centre of the disc.
Small improvements matter, even when they look obvious in hindsight.
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1/2 On this day in 1955, Hugo Gernsback received US Patent No. 2,718,083 for a “Hydraulic fishery” designed to pump fish from the sea straight to shore.
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📘 𝑇ℎ𝑒 𝐵𝑎𝑡𝑡𝑙𝑒 𝑓𝑜𝑟 𝐶𝑜𝑛𝑡𝑟𝑜𝑙 𝑜𝑓 𝑡ℎ𝑒 𝐵𝑟𝑎𝑠𝑠 𝑎𝑛𝑑 𝐼𝑛𝑠𝑡𝑟𝑢𝑚𝑒𝑛𝑡𝑠 𝐵𝑢𝑠𝑖𝑛𝑒𝑠𝑠 𝑖𝑛 𝑡ℎ𝑒 𝐹𝑟𝑒𝑛𝑐ℎ 𝐼𝑛𝑑𝑢𝑠𝑡𝑟𝑖𝑎𝑙 𝑅𝑒𝑣𝑜𝑙𝑢𝑡𝑖𝑜𝑛
Oxford University Press, 2024.

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1/3 On this day in 1968, An Wang received US Patent No. 3,402,285 for a “Calculating apparatus”, concerning the logarithmic technology behind Wang Laboratories’ early calculators.
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1/5 On this day in 1884, John Nelson received US Patent No. 305,102 for an “Illuminating device for frightening rats and mice”, essentially a cardboard cat. Even contemporary newspapers treated the invention as something of a curiosity.
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1/2 On this day in 1891, Seth Wheeler received US Patent No. 459,516 for a toilet-paper roll.
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1/3 On this day in 1841, US Patent No. 2,252 was granted to American painter John Goffe Rand for an “Improvement in the construction of vessels or apparatus for preserving paint, &c.”
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1/2 On this day in 1846, Elias Howe received US Patent No. 4,750 for an “Improvement in sewing-machines”. It would become one of the foundational patents of the sewing-machine industry, although Howe initially struggled to make money from the machine itself.
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On this day in 1843, Nancy Johnson received US Patent No. 3,254 for an “Artificial Freezer”.
She did not invent ice cream. She simply found a much better way to make it.
A hand crank, ice, salt, and a clever beater changed the process.
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1/5 On this day in 2011, patent attorney Ignacio Marc Asperas received US Patent No. 8,011,991 for an “Apparatus for facilitating the construction of a snow man/woman”.
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1/3 On this day in 1899, Robert O’Loughlin received US Patent No. 632,361 for a “Pattern for Garments”, an improvement to sewing patterns.
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