Reclaimed rubber, 1930
“Improvement to reclaimed rubber”
A patent application for a novel technique for recycling rubber.
To celebrate our 175th anniversary, we are taking a deep dive into our files and digging out some of the patent, design and trade mark applications that HLK has worked on in our 175-year history of protecting IP.
Below are some of the applications and registrations from yesteryear that have made it into our IP Files collection.
Open up the accompanying LinkedIn post to find out more about the inventor and period of history that makes these innovations stand out.
Follow #IPFiles and #HLK175 on LinkedIn to see all the latest posts and keep up-to-date with our 175th anniversary news.
Variable speed countershafts, 1896
“Improvements in and relating to variable speed countershafts.”
A fascinating patent application to assist an engine running at a constant speed, filed for inventor Martha White.
Space vehicle, 1960
“A space vehicle”
This application discloses a “space vehicle” which uses microwave energy to power rotation of the vehicle. Airfoils attached to the vehicle would then generate the thrust required to keep the space vehicle in orbit.
Crib for premature babies, 1894
“Improvements in heat regulated apparatus for use in rearing infants.”
This apparatus became known as the ‘Lion incubator’ and was a high point in technology at the end of the 19th century, improving the survival rate of prematurely born infants.
Thermometer, 1894
“Improvements in and relating to clinical thermometers.”
An innovative thermometer to help reduce the risk of infection and a cheaper alternative to thermometers of the time, from inventor and applicant Enrico Pinchetti.
Sight-testing apparatus, 1900
“Improvements in optometers.”
An invention to aid the measurement of errors of ocular refraction, patented by Andrew Jay Cross, a former president of the American Optometric Association.
Syringe, 1903
“Improvements in devices for storing and injecting serums and the like.”
An innovative design for a syringe, patented by Parke, Davis & Co, at the time ‘the world’s largest pharmaceutical company’, that later became part of Pfizer.
Stapler, 1927
“Improvements in stapling machines.”
Used for stapling paperwork, boxes and carpet, it was a versatile piece of equipment, from Greenfield Automatic Fastener Company, using small strips of staples – what we’re familiar with nowadays.
Adding machine, 1905
“Improvements relating to adding machines.”
The ‘Bundy Adding Machine’, bares the smallest resemblance to a modern-day calculator and comes from a company that later became part of IBM.
Safety razor, 1907
“Improvements relating to safety razors.”
This type of razor changed men’s personal care and became popular in the 1900s after it was first patented by King Camp Gillette.
Calendar, 1929
“Improvements in or relating to calendars and other information display devices.”
A frame could be positioned on a particular calendar date as a marker. One of the filers was Harry Vaughan Letts, the son of Charles Letts who founded Letts & Co, a popular diary and stationery brand.
Ballpoint pen, 1945
“Improvements in reservoir writing instruments.”
Named for its inventor, László Bíró patented the first commercially successful modern ballpoint pen.
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