 | Johann Philipp Reis was a self-taught German scientist and inventor. In 1861, he constructed the... more » |
 | Johann Zacherl was an Austrian inventor, industrialist and manufacturer. Johann Zacherl made a... more » |
 | Johannes Gensfleisch zur Laden zum Gutenberg was a German blacksmith, goldsmith, printer, and... more » |
 | John A Roop was CEO of Miret Surgical and Director of Sales and Marketing for Tarsus Medical. He... more » |
.png/242px-John_Adams_Howell_(1840–1918).png "John Adams Howell") | John Adams Howell was a Rear Admiral of the United States Navy, who served during the Civil War... more » |
.jpg/236px-John_Adams_Whipple_(Massachusetts_Photographer).jpg "John Adams Whipple") | John Adams Whipple was an American inventor and early photographer. He was the first in the... more » |
| John Alexander "Jack" Hopps, OC was one of the pioneers of the artificial pacemaker and is known... more » |
 | John Augustus Larson was a Police Officer for Berkeley, California, United States, and famous... more » |
| John Barber was an English coalmaster and inventor. He was born in Nottinghamshire, but moved to... more » |
 | John Bardeen was an American physicist and electrical engineer, the only person to have won the... more » |
 | John Bell Blish Known mostly for inventing the Blish lock, used in the Thompson submachine gun... more » |
 | John Bidwell was known throughout California and across the nation as an important pioneer,... more » |
 | John Boyd Dunlop was a Scottish inventor. He was one of the founders of the rubber company that... more » |
 | John Kenton Britten was a New Zealand mechanical engineer who designed a world-record-setting... more » |
 | John Moses Browning, born in Ogden, Utah, was an American firearms designer who developed many... more » |
| John Lyon Burnside III was the inventor of the teleidoscope, the darkfield kaleidoscope and the... more » |
 | John Butler Tytus, Jr. was the inventor of the first practical wide-strip continuous rolling... more » |
![](https://upload.wikimedia.org/wikipedia/commons/4/4b/John_Calvin_("Cal")_Jureit.jpg "John Calvin Jureit") | John Calvin Jureit was an engineer and the inventor of the Gang-Nail connector plate, used in... more » |
| John D. Altman was a researcher at the Howard Hughes Medical Institute and the Departments of... more » |
 | John Deere was an American blacksmith and manufacturer who founded Deere & Company, one of the... more » |
| John Dickinson invented a continuous mechanised papermaking process and founded the paper mills... more » |
 | John Dolbeer was a partner in the Dolbeer & Carson Lumber Co., one of the early major Humboldt... more » |
| John Dopyera was a Slovak-American inventor and entrepreneur, and a maker of stringed... more » |
| John Doulton was an English businessman and manufacturer of pottery, a founder of the firm that... more » |
| John William Earnshaw was a self-taught Australian engineer credited with many inventions. He... more » |
