Of these 53 patents, more than 20% patents are active. The United States of America is where Proserv Group has filed the maximum number of patents, followed by the United Kingdom and Norway. Parallelly, United States of America seems to be the main focused R&D centre and also United Kingdom is the origin country of Proserv Group.
Proserv Group was founded in 1974. A variety of goods and services are offered by Proserv Group, a provider of production technologies and services, to the oil and gas sector. It provides check, relief, shuttle, SPM, directional control, and instrumentation valves as well as chemical injection equipment, systems, panels, and skids. It also offers drilling and production technology items.
Do read about some of the most popular patents of Proserv Group which have been covered by us in this article and also you can find Proserv Group patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Proserv Group patent portfolio.
How many patents do the CEO of Proserv Group have?
The CEO Davis Larssen have 0 patents.
How many patents does Proserv Group have?
Proserv Group has a total of 53 patents globally. These patents belong to 35 unique patent families. Out of 53 patents, 11 patents are active.
How Many Patents did Proserv Group File Every Year?

Are you wondering why there is a drop in patent filing for the last two years? It is because a patent application can take up to 18 months to get published. Certainly, it doesn’t suggest a decrease in the patent filing.
Year of Patents Filing or Grant | Proserv Group Applications Filed | Proserv Group Patents Granted |
2022 | – | 1 |
2021 | 3 | – |
2020 | 2 | – |
2019 | 1 | – |
2017 | – | 1 |
2016 | – | 1 |
2015 | 2 | 1 |
2014 | 3 | 1 |
2013 | 3 | 1 |
2012 | 2 | – |
2011 | 3 | – |
How many Proserv Group patents are Alive/Dead?
Worldwide Patents

How Many Patents did Proserv Group File in Different Countries?

Countries in which Proserv Group Filed Patents
Country | Patents |
United States Of America | 23 |
United Kingdom | 11 |
Norway | 3 |
Australia | 3 |
Europe | 2 |
Austria | 1 |
Malaysia | 1 |
Where are the Research Centers of Proserv Group Patents Located?

10 Best Proserv Group Patents
US7419001B2 is the most popular patent in the Proserv Group portfolio. It has received 43 citations so far from companies like Saudi Aramco, Cameron International, and Argus Subsea.
Below is the list of 10 most cited patents of Proserv Group:
Publication Number | Citation Count |
US7419001B2 | 43 |
US6651696B2 | 43 |
US6655405B2 | 37 |
US7073590B2 | 31 |
US6702024B2 | 28 |
US7159605B2 | 26 |
US6520478B1 | 26 |
US7380603B2 | 25 |
US6779543B2 | 24 |
US7225831B2 | 23 |
What Percentage of Proserv Group US Patent Applications were Granted?
Proserv Group (Excluding its subsidiaries) has filed 19 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 18 have been granted leading to a grant rate of 94.74%.
Below are the key stats of Proserv Group patent prosecution at the USPTO.

Which Law Firms Filed Most US Patents for Proserv Group?
Law Firm | Total Applications | Success Rate |
Husch Blackwell | 12 | 100% |
Hunton Andrews Kurth | 4 | 100% |
Cooke Law Firm | 2 | 50% |
Lawrence E Evans | 1 | 100% |