Webinar - Intellectual Property

Judgment update: Claydon Yield-O-Meter v Mzuri – prior use and patent validity

WATCH NOW

Claydon Yield-O-Meter v Mzuri tested the general principle of UK patent law that if an invention is ‘disclosed’ before its priority date, it cannot be patented. With Judgment received on 22 April, this webinar focussed on:

The key outcomes
How they affect the law on prior disclosure of patents and invalidity
How the judge applied the recent case of Emson v Hozelock, in which the prior testing of a garden hose on the inventor's front lawn was not found to be a public, enabling disclosure
Practical tips for both inventors and challengers to the validity of a patent (for example defendants in patent proceedings), in terms of how best to prepare and present a case on prior use

See more of the team

Daniel Kelly

Legal Director

Contact Daniel
Our thoughts

All the latest views and insights.

Zero-Hours, Low-Hours and Casual Workers: What the Employment Rights Act 2025 Changes 

Employment
27th February 2026 read more >
Employment Rights Act 2025 – Key Changes Employers Need to Prepare For 
Employment
27th February 2026 read more >
Trade Union Reforms Under the Employment Rights Act 2025 
Employment
27th February 2026 read more >
Employment Rights Act 2025: What Employers Need to Know 
Employment
27th February 2026 read more >

See More Articles >

View all articles
SHMA® ON DEMAND

All the latest on-demand content.

Charity Trustee Training 2025

29 Apr

,

Charity Trustee Training 2025

In collaboration with BHP, we are delighted to share with you the dates for […]

Read More Right Arrow

Stratford Breakfast Club

6 Mar

Helen Bowns, Partner & Head of Family Law | Andrew Smith, Partner

Stratford Breakfast Club

We will be hosting our first Stratford Breakfast Club of 2025 on Tuesday 25 […]

Read More Right Arrow

View all webinars
Back to SHMA on demand