November 30, 2025

On November 30, 1875, Asmus.J. Ehrrichson, of Akron, Ohio, received U.S. Patent No. 170536 on an Oat-Meal Machine:

In the United States oats were primarily horse feed until a German grocer, Ferdinand Schumacher emigrated to the United States in the mid-1800s. In 1854 Schumacher began grinding oats in his Akron, Ohio, store, using a hand mill similar that used to grind coffee beans. Schumacher then opened the German Mills American Oatmeal Company, grinding the oats between two rotating millstones. The ground oats resulted in a cooked oatmeal that was pasty and lumpy.

Asmus J. Ehrrichsen, one of Schumacher’s employees, replaced the millstones with rotating knife blades. This substantially reduced the amount of residue and produced a more uniform meal. Unfortunately, meal of uniform taste and flakiness. While producing a better product, Ehrrichsen’s invention still resulted in significant waste, prompting Schumacher three years later to purpurchase porcelain rollers from England. Not only did the rollers eliminate waste, but they produced a meal that could be cooked in as little as one hour.

An interesting side note is that in nearby Ravenna, a mill owned by Heston and Seymour, was also selling steel-cut oats, but instead of selling them in bulk, they packaged them in paper boxes with the printed cooking directions, calling their product ” printed on the outside. They called their product “Quaker Oats.”

November 29, 2025

On November 29, 1932, Laurens Hammond (of Hammond organ fame) received U.S. Patent No. 1,889,729 (one of his more than one hundred patents) on a Card Table with Automatic Dealing Mechanism:

The table was designed to automatically deal four bridge hands of 13 cards, and was actually manufactured:

November 28, 2025

On November 28,

Herman Casler was a pioneering American inventor and motion-picture engineer best known for co-founding the American Mutoscope and Biograph Company and for creating several foundational early-cinema technologies. Trained as a mechanical engineer, Casler first gained prominence in the 1890s when he developed the Mutoscope, a hand-cranked “flip-card” motion-picture viewer that displayed moving images by rapidly flipping a sequence of photographs mounted on a circular drum. [U.S. Patent No. 549,309, issued November 5, 1895, and (U.S. Patent No. 683,910, granted October 8, 1901)]. Cheaper and more durable than Thomas Edison’s Kinetoscope, the Mutoscope became wildly popular in amusement parlors and helped establish Biograph as one of the most influential early film companies.

Casler’s inventive contributions extended well beyond the viewer itself. He designed the Mutograph camera, a large and robust motion-picture camera that used wide, high-quality film, giving Biograph productions their famously sharp images. He also developed improvements to film perforation, camera mechanics, and projection systems that shaped the technical standards of early cinema.

November 27, 2025

Today’s patent of the day is from May 10, 1927, when U.S. Patent No. 1,628,121 issued to Nathan Covel on a “Package” for cand shown decorated with Thanksgiving imagery:

It always seems a bit macabre to depict a turkey next to a tree stump chopping block and an ax, but Happy Thanksgiving anyway!

November 12, 2025

On November 12, 19985, U.S. Patent No. 4,551,857 issued to Aaron A Galvin on a Hot Weather Hat:

Providing cooling in a hat has been a hot topic for inventors.

On November 21, 1967, U.S. Patent No. 3,353,191 issued on a Cooling Unit for a Hat:

On December 22, 1970, U.S. Patent No. 3,543,415 issued on an Air Conditioned Helmet:

On November 20, 1984, U.S. Patent No. 4,483,021 on a Thermo-Electric Cooled Head Gear:

November 11, 2025

On November 11, 1856, U.S. Patent Np. 16082 issued to Henry Bessemer on the Manufacture of Iron and Steel:

Bessemer’s steel-making process was the most important technique for making steel in the nineteenth century. Bessemer system involved blowing air through molten pig iron to remove the impurities, make steel easier, quicker and cheaper to manufacture. Bessemer also made at least 128 other inventions in the fields of iron, steel and glass. He was knighted for his contribution to science in 1879, and in the same year was made a fellow of the Royal Society.

November 10, 2025

On November 10, 1964, U.S. Patent No. 3,156,177 on Food Preheating, Cooking and Warming Device issued to Harlan Sanders:

A few years later, the Colonel received a second patent, U.S. Patent No. 3,245,800 on a Process of Producing Fried Chicken Under Pressure:

Interestingly, in the Process of Producing Fried Chicken Under Pressure it is the chicken that is under pressure, not the poor cook behind the counter.

November 9, 2025

On November 9, 1842, U.S. Patent No. D1 issued to George Bruce on a type face. While the text of the patent survives, the actual type face does not:

Since then, thousands of typefaces have been patented, including U.S. Patent No. D262037, which protects the typeface used in the Star Trek franchise:

November 8, 2025

On November 8, 1910, U.S. Patent No. 974785 on an Electric Insect Destroyer issued to William M. Frost:

However electric bug zappers go back even further. 20 years earlier, on April 1, 1890, Francois Scherer received U.S. Patent No. 424729 on an Electric Trap:

November 2, 2025

On November 2, 2004, U.S. Patent No. 6,812,392 issued to Marlon Brando — yes, THAT Marlon Brando — on a Drumhead Tensioning Device and Method:

This was actually the fourth patent Brando received on this improvement in tuning conga drums, following U.S. Patent Nos. 6,410,833, 6,441,286, and 6,667,432. While his invention made it easier to tune conga drums, it would make the drums more expensive, and unfortunately it didn’t have a chance to catch on before his death in 2004.