Calix has a total of 182 patents globally, out of which 127 have been granted. Of these 182 patents, more than 53% patents are active. United States of America is where Calix has filed the maximum number of patents, followed by Australia and Sweden. Parallelly, United States of America seems to be the main focused R&D centre and also is the origin country of Calix.
Calix was founded in the year 1999. The Company provides computer services. The Company offers communication software, networking solutions and cloud computing services.
Do read about some of the most popular patents of Calix which have been covered by us in this article and also you can find Calix patents information, the worldwide patent filing activity and its patent filing trend over the years, and many other stats over Calix patent portfolio.
How many patents does the founder and the CEO of Calix have?
The founder Michael Hatfield has 0 patent and CEO Michael Weening has 0 patent.
How many patents does Calix have?
Calix has a total of 182 patents globally. These patents belong to 124 unique patent families. Out of 182 patents, 98 patents are active.
How Many Patents did Calix 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 | Calix Applications Filed | Calix Patents Granted |
| 2023 | – | 1 |
| 2022 | 2 | 3 |
| 2021 | – | 3 |
| 2020 | 2 | 3 |
| 2019 | 4 | 6 |
| 2018 | – | 6 |
| 2017 | 8 | 9 |
| 2016 | 8 | 11 |
| 2015 | 8 | 11 |
| 2014 | 10 | 11 |
| 2013 | 12 | 12 |
How many Calix patents are Alive/Dead?
How Many Patents did Calix File in Different Countries?
Countries in which Calix Filed Patents
| Country | Patents |
| United States of America | 131 |
| Australia | 12 |
| Sweden | 6 |
| Europe (EPO) | 4 |
| Finland | 2 |
| Norway | 2 |
| Germany | 1 |
| Hong Kong (S.A.R.) | 1 |
| Denmark | 1 |
| Austria | 1 |
| Canada | 1 |
Where are Research Centres of Calix Patents Located?
10 Best Calix Patents
US6748439B1 is the most popular patent in the Calix portfolio. It has received 171 citations so far from companies like Nortel Networks Limited, Gemini Networks and Nec Corporation.
Below is the list of 10 most cited patents of Calix:
| Publication Number | Citation Count |
| US6748439B1 | 171 |
| US8718482B1 | 100 |
| US6907572B2 | 76 |
| US7379423B1 | 73 |
| US20150063812A1 | 58 |
| US8355348B1 | 57 |
| US7490351B1 | 53 |
| US6725233B2 | 50 |
| US7155496B2 | 48 |
| US20140056582A1 | 40 |
How many inventions of other companies were rejected due to Calix patents?
The statistics below share strategic R&D insights. It tells the companies that were trying to protect inventions similar to Calix invention. They couldn’t because Calix had protected those before them.
Examiners at the USPTO referred 76 Calix patents in 438 rejections (35 USC § 102 or 35 USC § 103 types).
The top citing companies in the Calix patent portfolio are Cisco, IBM and Arris Enterprises.
List of the Companies whose Patents were rejected citing Calix –
| Company | Number of Patent Applications that faced Rejection Citing Calix Patents | Number of Rejections (102 & 103) |
| Cisco | 11 | 21 |
| IBM | 9 | 9 |
| Arris Enterprises | 8 | 16 |
| Huawei | 6 | 14 |
| Siemens | 5 | 18 |
| Adtran | 5 | 9 |
| Microsoft | 4 | 8 |
| Avago Technologies | 4 | 15 |
| Juniper Networks | 4 | 7 |
| Qualcomm | 4 | 10 |
Count of 102 and 103 Type Rejections based on Calix Patents
Top Calix Patents used in Rejecting Most Patent Applications
| Patent Number | Count of Rejected Applications |
| US8433195B2 | 19 |
| US8121124B2 | 16 |
| US8355348B1 | 9 |
| US9391768B2 | 8 |
| US8964572B2 | 8 |
| US7490351B1 | 7 |
| US9025951B2 | 6 |
| US8249452B2 | 6 |
| US8917993B2 | 5 |
| US20150063812A1 | 5 |
| US8983308B2 | 5 |
| US8526443B2 | 5 |
| US8718482B1 | 5 |
| US9642145B2 | 5 |
| US7103072B1 | 4 |
What Percentage of Calix US Patent Applications were Granted?
Calix (Excluding its subsidiaries) has filed 63 patent applications at USPTO so far (Excluding Design and PCT applications). Out of these 55 have been granted leading to a grant rate of 99.3%.
Below are the key stats of Calix patent prosecution at the USPTO.
Which Law Firms Filed Most US Patents for Calix?
| Law Firm | Total Applications | Success Rate |
| Shumaker & Sieffert Pa | 25 | 84.00% |
| Schwegman Lundberg & Woessner Pa | 8 | 71.43% |
| Silicon Valley Patent Group Llp | 5 | 100.00% |
| Womble Bond Dickinson Us Llp | 4 | 100.00% |
| Bill Orr | 3 | 100.00% |
| Blakely Sokoloff Taylor & Zafman | 5 | 100.00% |
| Calix Networks Inc | 2 | 100.00% |
| Fogg & Powers Llc | 2 | 50.00% |
| Michael J Mallie | 2 | 100.00% |
| Birch Stewart Kolasch & Birch Llp | 1 | 100.00% |
What are Calix key innovation segments?
What Technologies are Covered by Calix?
The chart below distributes patents filed by Calix in different countries on the basis of the technology protected in patents. It also represents the markets where Calix thinks it’s important to protect particular technology inventions.
R&D Focus: How has Calix search focus changed over the years?
EXCLUSIVE INSIGHTS COMING SOON!