% Expired Patents = 33.3

Trademarks = 3

Forward Citations = 92

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7 inventors (with patents filed for the assignee):

Michael D Kipp (2 out of 11 patents)

Michael D Ridges (2 out of 13 patents)

Erich A Wilson (2 out of 2 patents)

4. Jerry B Bishop (2 out of 2 patents)

5. Forest G Brown (2 out of 2 patents)

6. Francis A Schwind (1 out of 5 patents)

7. David B Sawyer (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 8444900 - Method and system for forming composite geometric support structures (2013-05-21),

2. 8313600 - Method and system for forming composite geometric support structures (2012-11-20),

3. 5181844 - Rotary vane pump with carbon/carbon vanes (1993-01-26),

4. 4820140 - Self-lubricating rotary vane pump (1989-04-11),

5. 4469473 - Reciprocating piston apparatus (1984-09-04),

6. D271976 - Piston vacuum pump (1983-12-27),

Sigma-tek, LLC is a leading provider of precision manufacturing solutions for the aerospace industry. With over 20 years of experience, we specialize in high-quality machined components and assemblies for a range of aircraft platforms. Our state-of-the-art facilities and skilled team ensure the highest standards of quality and precision in our products.

Profile summary based on public USPTO records.