Lennox International has a total of 1990 patents globally, out of which 1226 have been granted. Of these 1990 patents, more than 74% patents are active. The United States of America is where Lennox International has filed the maximum number of patents, followed by Canada and Europe. Parallelly, United States of America seems to be the main focused R&D centre and also is the origin country of Lennox International.
Lennox International was founded in the year 1895. The Company provides climate control solutions. The Company designs, manufactures and markets heating, ventilation, air conditioning and refrigeration equipment. As of February 2023, the market cap of Lennox International is $8.97 Billion.
Do read about some of the most popular patents of Lennox International which have been covered by us in this article and also you can find Lennox International patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Lennox International patent portfolio.
How many patents does the founder and the CEO of Lennox International have?
The founder Dave Lennox has 0 patent and CEO Alok Maskara has 3 patents.
How many patents does Lennox International have?
Lennox International has a total of 1990 patents globally. These patents belong to 756 unique patent families. Out of 1990 patents, 1484 patents are active.
How Many Patents did Lennox International 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 | Lennox International Applications Filed | Lennox International Patents Granted |
| 2023 | – | 16 |
| 2022 | 59 | 134 |
| 2021 | 151 | 129 |
| 2020 | 144 | 155 |
| 2019 | 140 | 152 |
| 2018 | 173 | 129 |
| 2017 | 180 | 108 |
| 2016 | 149 | 78 |
| 2015 | 149 | 60 |
| 2014 | 112 | 64 |
| 2013 | 88 | 41 |
| 2012 | 113 | 14 |
| 2011 | 88 | 16 |
How many Lennox International patents are Alive/Dead?
How Many Patents did Lennox International File in Different Countries?
Countries in which Lennox International Filed Patents
| Country | Patents |
| United States Of America | 996 |
| Canada | 370 |
| Europe | 230 |
| Australia | 74 |
| Germany | 73 |
| Korea (South) | 72 |
| China | 59 |
| Brazil | 32 |
| Mexico | 24 |
| India | 17 |
| Chile | 15 |
| United Kingdom | 10 |
| Argentina | 1 |
| Japan | 1 |
| Austria | 1 |
| New Zealand | 1 |
Where are Research Centres of Lennox International Patents Located?
10 Best Lennox International Patents
US8239066B2 is the most popular patent in the Lennox International portfolio. It has received 227 citations so far from companies like Honeywell, Johnson Controls and Trane International.
Below is the list of 10 most cited patents of Lennox International:
| Publication Number | Citation Count |
| US8239066B2 | 227 |
| US6571566B1 | 209 |
| US6826921B1 | 157 |
| US20080182506A1 | 135 |
| US8802981B2 | 97 |
| US6644049B2 | 96 |
| US20110010621A1 | 95 |
| US8527096B2 | 94 |
| USD648641S1 | 93 |
| USD648642S1 | 90 |
How many inventions of other companies were rejected due to Lennox International patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Lennox International invention. They couldn’t because Lennox International had protected those before them.
Examiners at the USPTO referred 266 Lennox International patents in 1138 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Lennox International patent portfolio are Johnson Controls, Carrier Corporation and Trane.
List of the Companies whose Patents were rejected citing Lennox International –
| Company | Number of Patent Applications that faced Rejection Citing Lennox International Patents | Number of Rejections (102 & 103) |
| Johnson Controls | 49 | 126 |
| Carrier Corporation | 45 | 97 |
| Trane | 19 | 48 |
| Honeywell | 18 | 39 |
| Mitsubishi | 17 | 47 |
| Daikin | 15 | 23 |
| Ademco | 14 | 52 |
| LG | 11 | 25 |
| Samsung | 10 | 23 |
| Heatcraft Refrigeration Products | 10 | 26 |
Count of 102 and 103 Type Rejections based on Lennox International Patents
Top Lennox International Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US8802981B2 | 13 |
| US20130138250A1 | 11 |
| US8239066B2 | 10 |
| US9906029B2 | 9 |
| US8694164B2 | 8 |
| US8655491B2 | 8 |
| US20080182506A1 | 8 |
| US6978909B2 | 8 |
| US6644049B2 | 7 |
| US8994539B2 | 7 |
| US10302329B2 | 7 |
| US10387985B2 | 7 |
| US7185513B2 | 7 |
| US6826921B1 | 7 |
| US7850390B2 | 7 |
What Percentage of Lennox International US Patent Applications were Granted?
Lennox International (Excluding its subsidiaries) has filed 22 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 17 have been granted leading to a grant rate of 77.27%.
Below are the key stats of Lennox International patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Lennox International?
| Law Firm | Total Applications | Success Rate |
| Baker Botts Lennox | 14 | 78.57% |
| Lennox International | 3 | 66.67% |
| Brooks Kushman | 1 | 100.00% |
| Eversheds Sutherland | 1 | 0.00% |
| Klemchuk | 1 | 100.00% |
| Parker Justiss | 1 | 100.00% |
| Shackelford Bowen Mckinley & Norton Lennox | 1 | 100.00% |