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For the Inventor, By the Inventor

Sun Prairie, WI, United States of America

Guardian Ig, LLC

Calculating rank
USPTO Granted Patents = 15

% Expired Patents = 20.0



Forward Citations = 55

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11 inventors (with patents filed for the assignee):

goldMedal Eric B Rapp (9 out of 11 patents)

silverMedal Raimo T Nieminen (6 out of 6 patents)

bronzeMedal Paul Trpkovski (5 out of 70 patents)

4.  Corey E Pemberton (3 out of 3 patents)

5.  Paul Terpstra (2 out of 10 patents)

6.  David E Rapp (2 out of 46 patents)

7.  Richard Ahnen (2 out of 2 patents)

8.  Kurt E Heikkila (2 out of 75 patents)

9.  Gary R Matthews (1 out of 6 patents)

10.  Robert J Onesti (1 out of 1 patent)

11.  George Longo (1 out of 1 patent)


15 patents:

1. 10246933 - Window unit assembly station and method (2019-04-02),
2. 10233690 - Rotating spacer applicator for window assembly (2019-03-19),
3. 9689196 - Assembly equipment line and method for windows (2017-06-27),
4. 9677321 - Triple pane window spacer having a sunken intermediate pane (2017-06-13),
5. 9656356 - Window unit assembly station and method (2017-05-23),
6. 9617781 - Sealed unit and spacer (2017-04-11),
7. 9617780 - Triple pane window spacer, window assembly and methods for manufacturing same (2017-04-11),
8. 9309714 - Rotating spacer applicator for window assembly (2016-04-12),
9. 9309713 - Stretched strips for spacer and sealed unit (2016-04-12),
10. 9260907 - Triple pane window spacer having a sunken intermediate pane (2016-02-16),
11. 9228389 - Triple pane window spacer, window assembly and methods for manufacturing same (2016-01-05),
12. 9187949 - Spacer joint structure (2015-11-17),
13. 9127502 - Sealed unit and spacer (2015-09-08),
14. 8967219 - Window spacer applicator (2015-03-03),
15. 8795568 - Method of making a box spacer with sidewalls (2014-08-05),
Company Overview
Guardian Ig, LLC is a specialized organization based in Sun Prairie, Wisconsin, focusing on the development and manufacturing of innovative immunoglobulin therapies. The company is dedicated to advancing healthcare solutions through its expertise in biopharmaceuticals, particularly in the realm of immune system support. With a commitment to research and development, Guardian Ig aims to enhance treatment options for patients with various immune deficiencies and related conditions, contributing to the broader field of medical advancements.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

15 Patents

#1 in Sun Prairie, WI

#486 in Wisconsin

#21,068 in US

#39,959 in the World

Sun Prairie, WI (US)
Sun Prairie, WI, United States of America

Guardian Ig, LLC

Forward Citations = 55

11 inventors:

goldMedal Eric B Rapp (9 out of 11 patents)

silverMedal Raimo T Nieminen (6 out of 6 patents)

bronzeMedal Paul Trpkovski (5 out of 70 patents)

4.  Corey E Pemberton (3 out of 3 patents)

5.  Paul Terpstra (2 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Guardian Ig, LLC. Retrieved from https://idiyas.com/company/guardian-ig

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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